[PATCH v2 0/3] [RFC] shmem: user and group quota support for tmpfs

[PATCH v2 0/3] [RFC] shmem: user and group quota support for tmpfs

[Lukas Czerner]

people have been asking for quota support in tmpfs many times in the past
mostly to avoid one malicious user, or misbehaving user/program to consume
all of the system memory. This has been partially solved with the size
mount option, but some problems still prevail.

One of the problems is the fact that /dev/shm is still generally unprotected
with this and another is administration overhead of managing multiple tmpfs
mounts and lack of more fine grained control.

Quota support can solve all these problems in a somewhat standard way
people are already familiar with from regular file systems. It can give us
more fine grained control over how much memory user/groups can consume.
Additionally it can also control number of inodes and with special quota
mount options introduced with a second patch we can set global limits
allowing us to replace the size mount option with quota entirely.

Currently the standard userspace quota tools (quota, xfs_quota) are only
using quotactl ioctl which is expecting a block device. I patched quota [1]
and xfs_quota [2] to use quotactl_fd in case we want to run the tools on
mount point directory to work nicely with tmpfs.

The implementation was tested on patched version of xfstests [3].

Changes in v2:
  - Instead of using quota format QFMT_VFS_V1 with all the complexities
    around writing/reading quota files, instroduce new in-memory only
    quota format (PATCH 1/3) and use that instead as suggested by
    Jan Kara.
  - Rename global quota limits mount options to something much more
    sensible as suggested by Darrick J. Wong.
  - Improve documentation.
  - Check if qlobal quota limits aren't too large.

-Lukas

[1] https://github.com/lczerner/quota/tree/quotactl_fd_support
[2] https://github.com/lczerner/xfsprogs/tree/quotactl_fd_support
[3] https://github.com/lczerner/xfstests/tree/tmpfs_quota_support

[PATCH v2 1/3] quota: add quota in-memory format support

[Lukas Czerner]

In memory quota format relies on quota infrastructure to store dquot
information for us. While conventional quota formats for file systems
with persistent storage can load quota information into dquot from the
storage on-demand and hence quota dquot shrinker can free any dquot that
is not currently being used, it must be avoided here. Otherwise we can
lose valuable information, user provided limits, because there is no
persistent storage to load the information from afterwards.

One information that in-memory quota format needs to keep track of is a
sorted list of ids for each quota type. This is done by utilizing an rb
tree which root is stored in mem_dqinfo->dqi_priv for each quota type.

This format can be used to support quota on file system without persistent
storage such as tmpfs.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
---
 fs/quota/Kconfig           |   8 ++
 fs/quota/Makefile          |   1 +
 fs/quota/dquot.c           |   3 +
 fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
 include/linux/quota.h      |   7 +-
 include/uapi/linux/quota.h |   1 +
 6 files changed, 279 insertions(+), 1 deletion(-)
 create mode 100644 fs/quota/quota_mem.c

diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
index b59cd172b5f9..8ea9656ca37b 100644
--- a/fs/quota/Kconfig
+++ b/fs/quota/Kconfig
@@ -67,6 +67,14 @@ config QFMT_V2
 	  also supports 64-bit inode and block quota limits. If you need this
 	  functionality say Y here.
 
+config QFMT_MEM
+	tristate "Quota in-memory format support "
+	depends on QUOTA
+	help
+	  This config option enables kernel support for in-memory quota
+	  format support. Useful to support quota on file system without
+	  permanent storage. If you need this functionality say Y here.
+
 config QUOTACTL
 	bool
 	default n
diff --git a/fs/quota/Makefile b/fs/quota/Makefile
index 9160639daffa..935be3f7b731 100644
--- a/fs/quota/Makefile
+++ b/fs/quota/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
 obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
 obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
 obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
+obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 0427b44bfee5..f1a7a03632a2 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 	spin_lock(&dq_list_lock);
 	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
 		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
+		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
+		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
+			continue;
 		remove_dquot_hash(dquot);
 		remove_free_dquot(dquot);
 		remove_inuse(dquot);
diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
new file mode 100644
index 000000000000..7d5e82122143
--- /dev/null
+++ b/fs/quota/quota_mem.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * In memory quota format relies on quota infrastructure to store dquot
+ * information for us. While conventional quota formats for file systems
+ * with persistent storage can load quota information into dquot from the
+ * storage on-demand and hence quota dquot shrinker can free any dquot
+ * that is not currently being used, it must be avoided here. Otherwise we
+ * can lose valuable information, user provided limits, because there is
+ * no persistent storage to load the information from afterwards.
+ *
+ * One information that in-memory quota format needs to keep track of is
+ * a sorted list of ids for each quota type. This is done by utilizing
+ * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
+ * type.
+ *
+ * This format can be used to support quota on file system without persistent
+ * storage such as tmpfs.
+ */
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/rbtree.h>
+
+#include <linux/quotaops.h>
+#include <linux/quota.h>
+
+MODULE_AUTHOR("Lukas Czerner");
+MODULE_DESCRIPTION("Quota in-memory format support");
+MODULE_LICENSE("GPL");
+
+/*
+ * The following constants define the amount of time given a user
+ * before the soft limits are treated as hard limits (usually resulting
+ * in an allocation failure). The timer is started when the user crosses
+ * their soft limit, it is reset when they go below their soft limit.
+ */
+#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
+#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
+
+struct quota_id {
+	struct rb_node	node;
+	qid_t		id;
+};
+
+static int mem_check_quota_file(struct super_block *sb, int type)
+{
+	/* There is no real quota file, nothing to do */
+	return 1;
+}
+
+/*
+ * There is no real quota file. Just allocate rb_root for quota ids and
+ * set limits
+ */
+static int mem_read_file_info(struct super_block *sb, int type)
+{
+	struct quota_info *dqopt = sb_dqopt(sb);
+	struct mem_dqinfo *info = &dqopt->info[type];
+	int ret = 0;
+
+	down_read(&dqopt->dqio_sem);
+	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
+	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
+	if (!info->dqi_priv) {
+		ret = -ENOMEM;
+		goto out_unlock;
+	}
+
+	/*
+	 * Used space is stored as unsigned 64-bit value in bytes but
+	 * quota core supports only signed 64-bit values so use that
+	 * as a limit
+	 */
+	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
+	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
+
+	info->dqi_bgrace = MAX_DQ_TIME;
+	info->dqi_igrace = MAX_IQ_TIME;
+	info->dqi_flags = 0;
+
+out_unlock:
+	up_read(&dqopt->dqio_sem);
+	return ret;
+}
+
+static int mem_write_file_info(struct super_block *sb, int type)
+{
+	/* There is no real quota file, nothing to do */
+	return 0;
+}
+
+/*
+ * Free all the quota_id entries in the rb tree and rb_root.
+ */
+static int mem_free_file_info(struct super_block *sb, int type)
+{
+	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
+	struct rb_root *root = info->dqi_priv;
+	struct quota_id *entry;
+	struct rb_node *node;
+
+	info->dqi_priv = NULL;
+	node = rb_first(root);
+	while (node) {
+		entry = rb_entry(node, struct quota_id, node);
+		node = rb_next(&entry->node);
+
+		rb_erase(&entry->node, root);
+		kfree(entry);
+	}
+
+	kfree(root);
+	return 0;
+}
+
+/*
+ * There is no real quota file, nothing to read. Just insert the id in
+ * the rb tree.
+ */
+static int mem_read_dquot(struct dquot *dquot)
+{
+	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
+	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
+	struct rb_node *parent = NULL, *new_node = NULL;
+	struct quota_id *new_entry, *entry;
+	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
+	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
+	int ret = 0;
+
+	down_write(&dqopt->dqio_sem);
+
+	while (*n) {
+		parent = *n;
+		entry = rb_entry(parent, struct quota_id, node);
+
+		if (id < entry->id)
+			n = &(*n)->rb_left;
+		else if (id > entry->id)
+			n = &(*n)->rb_right;
+		else
+			goto out_unlock;
+	}
+
+	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
+	if (!new_entry) {
+		ret = -ENOMEM;
+		goto out_unlock;
+	}
+
+	new_entry->id = id;
+	new_node = &new_entry->node;
+	rb_link_node(new_node, parent, n);
+	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
+	dquot->dq_off = 1;
+	/*
+	 * Make sure dquot is never released by a shrinker because we
+	 * rely on quota infrastructure to store mem_dqblk in dquot.
+	 */
+	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
+	set_bit(DQ_FAKE_B, &dquot->dq_flags);
+
+out_unlock:
+	up_write(&dqopt->dqio_sem);
+	return ret;
+}
+
+static int mem_write_dquot(struct dquot *dquot)
+{
+	/* There is no real quota file, nothing to do */
+	return 0;
+}
+
+static int mem_release_dquot(struct dquot *dquot)
+{
+	/*
+	 * Everything is in memory only, release once we're done with
+	 * quota via mem_free_file_info().
+	 */
+	return 0;
+}
+
+static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
+{
+	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
+	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
+	qid_t id = from_kqid(&init_user_ns, *qid);
+	struct quota_info *dqopt = sb_dqopt(sb);
+	struct quota_id *entry = NULL;
+	int ret = 0;
+
+	down_read(&dqopt->dqio_sem);
+	while (node) {
+		entry = rb_entry(node, struct quota_id, node);
+
+		if (id < entry->id)
+			node = node->rb_left;
+		else if (id > entry->id)
+			node = node->rb_right;
+		else
+			goto got_next_id;
+	}
+
+	if (!entry) {
+		ret = -ENOENT;
+		goto out_unlock;
+	}
+
+	if (id > entry->id) {
+		node = rb_next(&entry->node);
+		if (!node) {
+			ret = -ENOENT;
+			goto out_unlock;
+		}
+		entry = rb_entry(node, struct quota_id, node);
+	}
+
+got_next_id:
+	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
+out_unlock:
+	up_read(&dqopt->dqio_sem);
+	return ret;
+}
+
+static const struct quota_format_ops mem_format_ops = {
+	.check_quota_file	= mem_check_quota_file,
+	.read_file_info		= mem_read_file_info,
+	.write_file_info	= mem_write_file_info,
+	.free_file_info		= mem_free_file_info,
+	.read_dqblk		= mem_read_dquot,
+	.commit_dqblk		= mem_write_dquot,
+	.release_dqblk		= mem_release_dquot,
+	.get_next_id		= mem_get_next_id,
+};
+
+static struct quota_format_type mem_quota_format = {
+	.qf_fmt_id	= QFMT_MEM_ONLY,
+	.qf_ops		= &mem_format_ops,
+	.qf_owner	= THIS_MODULE
+};
+
+static int __init init_mem_quota_format(void)
+{
+	return register_quota_format(&mem_quota_format);
+}
+
+static void __exit exit_mem_quota_format(void)
+{
+	unregister_quota_format(&mem_quota_format);
+}
+
+module_init(init_mem_quota_format);
+module_exit(exit_mem_quota_format);
diff --git a/include/linux/quota.h b/include/linux/quota.h
index fd692b4a41d5..4398e05c8b72 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -285,7 +285,11 @@ static inline void dqstats_dec(unsigned int type)
 #define DQ_FAKE_B	3	/* no limits only usage */
 #define DQ_READ_B	4	/* dquot was read into memory */
 #define DQ_ACTIVE_B	5	/* dquot is active (dquot_release not called) */
-#define DQ_LASTSET_B	6	/* Following 6 bits (see QIF_) are reserved\
+#define DQ_NO_SHRINK_B	6	/* modified dquot (not DQ_FAKE_B) is never to
+				 * be released by a shrinker. It should remain
+				 * in memory until quotas are being disabled on
+				 * unmount. */
+#define DQ_LASTSET_B	7	/* Following 6 bits (see QIF_) are reserved\
 				 * for the mask of entries set via SETQUOTA\
 				 * quotactl. They are set under dq_data_lock\
 				 * and the quota format handling dquot can\
@@ -536,6 +540,7 @@ struct quota_module_name {
 	{QFMT_VFS_OLD, "quota_v1"},\
 	{QFMT_VFS_V0, "quota_v2"},\
 	{QFMT_VFS_V1, "quota_v2"},\
+	{QFMT_MEM_ONLY, "quota_mem"},\
 	{0, NULL}}
 
 #endif /* _QUOTA_ */
diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
index f17c9636a859..ee9d2bad00c7 100644
--- a/include/uapi/linux/quota.h
+++ b/include/uapi/linux/quota.h
@@ -77,6 +77,7 @@
 #define	QFMT_VFS_V0 2
 #define QFMT_OCFS2 3
 #define	QFMT_VFS_V1 4
+#define	QFMT_MEM_ONLY 5
 
 /* Size of block in which space limits are passed through the quota
  * interface */
-- 
2.38.1

[PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Lukas Czerner]

Implement user and group quota support for tmpfs using system quota file
in vfsv0 quota format. Because everything in tmpfs is temporary and as a
result is lost on umount, the quota files are initialized on every
mount. This also goes for quota limits, that needs to be set up after
every mount.

The quota support in tmpfs is well separated from the rest of the
filesystem and is only enabled using mount option -o quota (and
usrquota and grpquota for compatibility reasons). Only quota accounting
is enabled this way, enforcement needs to be enable by regular quota
tools (using Q_QUOTAON ioctl).

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
---
v2: Use the newly introduced in-memory only quota foramt QFMT_MEM_ONLY

 Documentation/filesystems/tmpfs.rst |  12 ++
 fs/quota/dquot.c                    |  10 +-
 include/linux/shmem_fs.h            |   3 +
 mm/shmem.c                          | 200 ++++++++++++++++++++++++----
 4 files changed, 197 insertions(+), 28 deletions(-)

diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst
index 0408c245785e..9c4f228ef4f3 100644
--- a/Documentation/filesystems/tmpfs.rst
+++ b/Documentation/filesystems/tmpfs.rst
@@ -86,6 +86,18 @@ use up all the memory on the machine; but enhances the scalability of
 that instance in a system with many CPUs making intensive use of it.
 
 
+tmpfs also supports quota with the following mount options
+
+========  =============================================================
+quota     Quota accounting is enabled on the mount. Tmpfs is using
+          hidden system quota files that are initialized on mount.
+          Quota limits can quota enforcement can be enabled using
+          standard quota tools.
+usrquota  Same as quota option. Exists for compatibility reasons.
+grpquota  Same as quota option. Exists for compatibility reasons.
+========  =============================================================
+
+
 tmpfs has a mount option to set the NUMA memory allocation policy for
 all files in that instance (if CONFIG_NUMA is enabled) - which can be
 adjusted on the fly via 'mount -o remount ...'
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index f1a7a03632a2..007604e7eb09 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -716,11 +716,11 @@ int dquot_quota_sync(struct super_block *sb, int type)
 	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
 		if (type != -1 && cnt != type)
 			continue;
-		if (!sb_has_quota_active(sb, cnt))
-			continue;
-		inode_lock(dqopt->files[cnt]);
-		truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
-		inode_unlock(dqopt->files[cnt]);
+		if (sb_has_quota_active(sb, cnt) && dqopt->files[cnt]) {
+			inode_lock(dqopt->files[cnt]);
+			truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
+			inode_unlock(dqopt->files[cnt]);
+		}
 	}
 
 	return 0;
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index d500ea967dc7..02a328c98d3a 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -26,6 +26,9 @@ struct shmem_inode_info {
 	atomic_t		stop_eviction;	/* hold when working on inode */
 	struct timespec64	i_crtime;	/* file creation time */
 	unsigned int		fsflags;	/* flags for FS_IOC_[SG]ETFLAGS */
+#ifdef CONFIG_QUOTA
+	struct dquot		*i_dquot[MAXQUOTAS];
+#endif
 	struct inode		vfs_inode;
 };
 
diff --git a/mm/shmem.c b/mm/shmem.c
index c1d8b8a1aa3b..26f2effd8f7c 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -79,6 +79,7 @@ static struct vfsmount *shm_mnt;
 #include <linux/userfaultfd_k.h>
 #include <linux/rmap.h>
 #include <linux/uuid.h>
+#include <linux/quotaops.h>
 
 #include <linux/uaccess.h>
 
@@ -120,8 +121,13 @@ struct shmem_options {
 #define SHMEM_SEEN_INODES 2
 #define SHMEM_SEEN_HUGE 4
 #define SHMEM_SEEN_INUMS 8
+#define SHMEM_SEEN_QUOTA 16
 };
 
+static void shmem_set_inode_flags(struct inode *, unsigned int);
+static struct inode *shmem_get_inode_noquota(struct super_block *,
+			struct inode *, umode_t, dev_t, unsigned long);
+
 #ifdef CONFIG_TMPFS
 static unsigned long shmem_default_max_blocks(void)
 {
@@ -136,6 +142,10 @@ static unsigned long shmem_default_max_inodes(void)
 }
 #endif
 
+#if defined(CONFIG_TMPFS) && defined(CONFIG_QUOTA)
+#define SHMEM_QUOTA_TMPFS
+#endif
+
 static int shmem_swapin_folio(struct inode *inode, pgoff_t index,
 			     struct folio **foliop, enum sgp_type sgp,
 			     gfp_t gfp, struct vm_area_struct *vma,
@@ -198,26 +208,34 @@ static inline void shmem_unacct_blocks(unsigned long flags, long pages)
 		vm_unacct_memory(pages * VM_ACCT(PAGE_SIZE));
 }
 
-static inline bool shmem_inode_acct_block(struct inode *inode, long pages)
+static inline int shmem_inode_acct_block(struct inode *inode, long pages)
 {
 	struct shmem_inode_info *info = SHMEM_I(inode);
 	struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
+	int err = -ENOSPC;
 
 	if (shmem_acct_block(info->flags, pages))
-		return false;
+		return err;
 
 	if (sbinfo->max_blocks) {
 		if (percpu_counter_compare(&sbinfo->used_blocks,
 					   sbinfo->max_blocks - pages) > 0)
 			goto unacct;
+		if (dquot_alloc_block_nodirty(inode, pages)) {
+			err = -EDQUOT;
+			goto unacct;
+		}
 		percpu_counter_add(&sbinfo->used_blocks, pages);
+	} else if (dquot_alloc_block_nodirty(inode, pages)) {
+		err = -EDQUOT;
+		goto unacct;
 	}
 
-	return true;
+	return 0;
 
 unacct:
 	shmem_unacct_blocks(info->flags, pages);
-	return false;
+	return err;
 }
 
 static inline void shmem_inode_unacct_blocks(struct inode *inode, long pages)
@@ -225,6 +243,8 @@ static inline void shmem_inode_unacct_blocks(struct inode *inode, long pages)
 	struct shmem_inode_info *info = SHMEM_I(inode);
 	struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
 
+	dquot_free_block_nodirty(inode, pages);
+
 	if (sbinfo->max_blocks)
 		percpu_counter_sub(&sbinfo->used_blocks, pages);
 	shmem_unacct_blocks(info->flags, pages);
@@ -247,6 +267,62 @@ bool vma_is_shmem(struct vm_area_struct *vma)
 static LIST_HEAD(shmem_swaplist);
 static DEFINE_MUTEX(shmem_swaplist_mutex);
 
+#ifdef SHMEM_QUOTA_TMPFS
+
+#define SHMEM_MAXQUOTAS 2
+
+/*
+ * We don't have any quota files to read, or write to/from, but quota code
+ * requires .quota_read and .quota_write to exist.
+ */
+static ssize_t shmem_quota_write(struct super_block *sb, int type,
+				const char *data, size_t len, loff_t off)
+{
+	return len;
+}
+
+static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
+			       size_t len, loff_t off)
+{
+	return len;
+}
+
+
+static int shmem_enable_quotas(struct super_block *sb)
+{
+	int type, err = 0;
+
+	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;
+	for (type = 0; type < SHMEM_MAXQUOTAS; type++) {
+		err = dquot_load_quota_sb(sb, type, QFMT_MEM_ONLY,
+					  DQUOT_USAGE_ENABLED);
+		if (err)
+			goto out_err;
+	}
+	return 0;
+
+out_err:
+	pr_warn("tmpfs: failed to enable quota tracking (type=%d, err=%d)\n",
+		type, err);
+	for (type--; type >= 0; type--)
+		dquot_quota_off(sb, type);
+	return err;
+}
+
+static void shmem_disable_quotas(struct super_block *sb)
+{
+	int type;
+
+	for (type = 0; type < SHMEM_MAXQUOTAS; type++)
+		dquot_quota_off(sb, type);
+}
+
+static struct dquot **shmem_get_dquots(struct inode *inode)
+{
+	return SHMEM_I(inode)->i_dquot;
+}
+#endif /* SHMEM_QUOTA_TMPFS */
+
 /*
  * shmem_reserve_inode() performs bookkeeping to reserve a shmem inode, and
  * produces a novel ino for the newly allocated inode.
@@ -353,7 +429,6 @@ static void shmem_recalc_inode(struct inode *inode)
 	freed = info->alloced - info->swapped - inode->i_mapping->nrpages;
 	if (freed > 0) {
 		info->alloced -= freed;
-		inode->i_blocks -= freed * BLOCKS_PER_PAGE;
 		shmem_inode_unacct_blocks(inode, freed);
 	}
 }
@@ -363,7 +438,7 @@ bool shmem_charge(struct inode *inode, long pages)
 	struct shmem_inode_info *info = SHMEM_I(inode);
 	unsigned long flags;
 
-	if (!shmem_inode_acct_block(inode, pages))
+	if (shmem_inode_acct_block(inode, pages))
 		return false;
 
 	/* nrpages adjustment first, then shmem_recalc_inode() when balanced */
@@ -371,7 +446,6 @@ bool shmem_charge(struct inode *inode, long pages)
 
 	spin_lock_irqsave(&info->lock, flags);
 	info->alloced += pages;
-	inode->i_blocks += pages * BLOCKS_PER_PAGE;
 	shmem_recalc_inode(inode);
 	spin_unlock_irqrestore(&info->lock, flags);
 
@@ -387,7 +461,6 @@ void shmem_uncharge(struct inode *inode, long pages)
 
 	spin_lock_irqsave(&info->lock, flags);
 	info->alloced -= pages;
-	inode->i_blocks -= pages * BLOCKS_PER_PAGE;
 	shmem_recalc_inode(inode);
 	spin_unlock_irqrestore(&info->lock, flags);
 
@@ -1119,6 +1192,13 @@ static int shmem_setattr(struct user_namespace *mnt_userns,
 		}
 	}
 
+	 /* Transfer quota accounting */
+	if (i_uid_needs_update(mnt_userns, attr, inode) ||
+	    i_gid_needs_update(mnt_userns, attr, inode))
+		error = dquot_transfer(mnt_userns, inode, attr);
+	if (error)
+		return error;
+
 	setattr_copy(&init_user_ns, inode, attr);
 	if (attr->ia_valid & ATTR_MODE)
 		error = posix_acl_chmod(&init_user_ns, inode, inode->i_mode);
@@ -1164,7 +1244,9 @@ static void shmem_evict_inode(struct inode *inode)
 	simple_xattrs_free(&info->xattrs);
 	WARN_ON(inode->i_blocks);
 	shmem_free_inode(inode->i_sb);
+	dquot_free_inode(inode);
 	clear_inode(inode);
+	dquot_drop(inode);
 }
 
 static int shmem_find_swap_entries(struct address_space *mapping,
@@ -1569,14 +1651,14 @@ static struct folio *shmem_alloc_and_acct_folio(gfp_t gfp, struct inode *inode,
 {
 	struct shmem_inode_info *info = SHMEM_I(inode);
 	struct folio *folio;
-	int nr;
-	int err = -ENOSPC;
+	int nr, err;
 
 	if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE))
 		huge = false;
 	nr = huge ? HPAGE_PMD_NR : 1;
 
-	if (!shmem_inode_acct_block(inode, nr))
+	err = shmem_inode_acct_block(inode, nr);
+	if (err)
 		goto failed;
 
 	if (huge)
@@ -1949,7 +2031,6 @@ static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index,
 
 	spin_lock_irq(&info->lock);
 	info->alloced += folio_nr_pages(folio);
-	inode->i_blocks += (blkcnt_t)BLOCKS_PER_PAGE << folio_order(folio);
 	shmem_recalc_inode(inode);
 	spin_unlock_irq(&info->lock);
 	alloced = true;
@@ -2315,8 +2396,10 @@ static void shmem_set_inode_flags(struct inode *inode, unsigned int fsflags)
 #define shmem_initxattrs NULL
 #endif
 
-static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
-				     umode_t mode, dev_t dev, unsigned long flags)
+static struct inode *shmem_get_inode_noquota(struct super_block *sb,
+					     struct inode *dir,
+					     umode_t mode, dev_t dev,
+					     unsigned long flags)
 {
 	struct inode *inode;
 	struct shmem_inode_info *info;
@@ -2384,6 +2467,35 @@ static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
 	return inode;
 }
 
+static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
+				     umode_t mode, dev_t dev, unsigned long flags)
+{
+	int err;
+	struct inode *inode;
+
+	inode = shmem_get_inode_noquota(sb, dir, mode, dev, flags);
+	if (inode) {
+		err = dquot_initialize(inode);
+		if (err)
+			goto errout;
+
+		err = dquot_alloc_inode(inode);
+		if (err) {
+			dquot_drop(inode);
+			goto errout;
+		}
+	}
+	return inode;
+
+errout:
+	inode->i_flags |= S_NOQUOTA;
+	iput(inode);
+	shmem_free_inode(sb);
+	if (err)
+		return ERR_PTR(err);
+	return NULL;
+}
+
 #ifdef CONFIG_USERFAULTFD
 int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
 			   pmd_t *dst_pmd,
@@ -2403,7 +2515,7 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
 	int ret;
 	pgoff_t max_off;
 
-	if (!shmem_inode_acct_block(inode, 1)) {
+	if (shmem_inode_acct_block(inode, 1)) {
 		/*
 		 * We may have got a page, returned -ENOENT triggering a retry,
 		 * and now we find ourselves with -ENOMEM. Release the page, to
@@ -2487,7 +2599,6 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
 
 	spin_lock_irq(&info->lock);
 	info->alloced++;
-	inode->i_blocks += BLOCKS_PER_PAGE;
 	shmem_recalc_inode(inode);
 	spin_unlock_irq(&info->lock);
 
@@ -2908,7 +3019,7 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
 	int error = -ENOSPC;
 
 	inode = shmem_get_inode(dir->i_sb, dir, mode, dev, VM_NORESERVE);
-	if (inode) {
+	if (!IS_ERR_OR_NULL(inode)) {
 		error = simple_acl_create(dir, inode);
 		if (error)
 			goto out_iput;
@@ -2924,7 +3035,8 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
 		inode_inc_iversion(dir);
 		d_instantiate(dentry, inode);
 		dget(dentry); /* Extra count - pin the dentry in core */
-	}
+	} else if (IS_ERR(inode))
+		error = PTR_ERR(inode);
 	return error;
 out_iput:
 	iput(inode);
@@ -2939,7 +3051,7 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
 	int error = -ENOSPC;
 
 	inode = shmem_get_inode(dir->i_sb, dir, mode, 0, VM_NORESERVE);
-	if (inode) {
+	if (!IS_ERR_OR_NULL(inode)) {
 		error = security_inode_init_security(inode, dir,
 						     NULL,
 						     shmem_initxattrs, NULL);
@@ -2949,7 +3061,8 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
 		if (error)
 			goto out_iput;
 		d_tmpfile(file, inode);
-	}
+	} else if (IS_ERR(inode))
+		error = PTR_ERR(inode);
 	return finish_open_simple(file, error);
 out_iput:
 	iput(inode);
@@ -3126,6 +3239,8 @@ static int shmem_symlink(struct user_namespace *mnt_userns, struct inode *dir,
 				VM_NORESERVE);
 	if (!inode)
 		return -ENOSPC;
+	else if (IS_ERR(inode))
+		return PTR_ERR(inode);
 
 	error = security_inode_init_security(inode, dir, &dentry->d_name,
 					     shmem_initxattrs, NULL);
@@ -3443,6 +3558,7 @@ enum shmem_param {
 	Opt_uid,
 	Opt_inode32,
 	Opt_inode64,
+	Opt_quota,
 };
 
 static const struct constant_table shmem_param_enums_huge[] = {
@@ -3464,6 +3580,9 @@ const struct fs_parameter_spec shmem_fs_parameters[] = {
 	fsparam_u32   ("uid",		Opt_uid),
 	fsparam_flag  ("inode32",	Opt_inode32),
 	fsparam_flag  ("inode64",	Opt_inode64),
+	fsparam_flag  ("quota",		Opt_quota),
+	fsparam_flag  ("usrquota",	Opt_quota),
+	fsparam_flag  ("grpquota",	Opt_quota),
 	{}
 };
 
@@ -3547,6 +3666,13 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
 		ctx->full_inums = true;
 		ctx->seen |= SHMEM_SEEN_INUMS;
 		break;
+	case Opt_quota:
+#ifdef CONFIG_QUOTA
+		ctx->seen |= SHMEM_SEEN_QUOTA;
+#else
+		goto unsupported_parameter;
+#endif
+		break;
 	}
 	return 0;
 
@@ -3646,6 +3772,12 @@ static int shmem_reconfigure(struct fs_context *fc)
 		goto out;
 	}
 
+	if (ctx->seen & SHMEM_SEEN_QUOTA &&
+	    !sb_any_quota_loaded(fc->root->d_sb)) {
+		err = "Cannot enable quota on remount";
+		goto out;
+	}
+
 	if (ctx->seen & SHMEM_SEEN_HUGE)
 		sbinfo->huge = ctx->huge;
 	if (ctx->seen & SHMEM_SEEN_INUMS)
@@ -3728,6 +3860,9 @@ static void shmem_put_super(struct super_block *sb)
 {
 	struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
 
+#ifdef SHMEM_QUOTA_TMPFS
+	shmem_disable_quotas(sb);
+#endif
 	free_percpu(sbinfo->ino_batch);
 	percpu_counter_destroy(&sbinfo->used_blocks);
 	mpol_put(sbinfo->mpol);
@@ -3805,14 +3940,26 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
 #endif
 	uuid_gen(&sb->s_uuid);
 
+#ifdef SHMEM_QUOTA_TMPFS
+	if (ctx->seen & SHMEM_SEEN_QUOTA) {
+		sb->dq_op = &dquot_operations;
+		sb->s_qcop = &dquot_quotactl_sysfile_ops;
+		sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
+
+		if (shmem_enable_quotas(sb))
+			goto failed;
+	}
+#endif  /* SHMEM_QUOTA_TMPFS */
+
 	inode = shmem_get_inode(sb, NULL, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
-	if (!inode)
+	if (IS_ERR_OR_NULL(inode))
 		goto failed;
 	inode->i_uid = sbinfo->uid;
 	inode->i_gid = sbinfo->gid;
 	sb->s_root = d_make_root(inode);
 	if (!sb->s_root)
 		goto failed;
+
 	return 0;
 
 failed:
@@ -3976,7 +4123,12 @@ static const struct super_operations shmem_ops = {
 #ifdef CONFIG_TMPFS
 	.statfs		= shmem_statfs,
 	.show_options	= shmem_show_options,
-#endif
+#ifdef CONFIG_QUOTA
+	.quota_read	= shmem_quota_read,
+	.quota_write	= shmem_quota_write,
+	.get_dquots	= shmem_get_dquots,
+#endif /* CONFIG_QUOTA */
+#endif /* CONFIG_TMPFS */
 	.evict_inode	= shmem_evict_inode,
 	.drop_inode	= generic_delete_inode,
 	.put_super	= shmem_put_super,
@@ -4196,8 +4348,10 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l
 
 	inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
 				flags);
-	if (unlikely(!inode)) {
+	if (IS_ERR_OR_NULL(inode)) {
 		shmem_unacct_size(flags, size);
+		if (IS_ERR(inode))
+			return (struct file *)inode;
 		return ERR_PTR(-ENOSPC);
 	}
 	inode->i_flags |= i_flags;
-- 
2.38.1

[PATCH v2 3/3] shmem: implement mount options for global quota limits

[Lukas Czerner]

Implement a set of mount options for setting glopbal quota limits on
tmpfs.

usrquota_block_hardlimit - global user quota block hard limit
usrquota_inode_hardlimit - global user quota inode hard limit
grpquota_block_hardlimit - global group quota block hard limit
grpquota_inode_hardlimit - global group quota inode hard limit

Quota limit parameters accept a suffix k, m or g for kilo, mega and giga
and can't be changed on remount. Default global quota limits are taking
effect for any and all user/group except root the first time the quota
entry for user/group id is being accessed - typically the first time an
inode with a particular id ownership is being created after the mount. In
other words, instead of the limits being initialized to zero, they are
initialized with the particular value provided with these mount options.
The limits can be changed for any user/group id at any time as it normally
can.

When any of the default quota limits are set, quota enforcement is enabled
automatically as well.

None of the quota related mount options can be set or changed on remount.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
---
v2: Rename mount option to something more sensible.
    Improve documentation.
    Check if the user provided limit isn't too large.

 Documentation/filesystems/tmpfs.rst |  36 +++++--
 include/linux/shmem_fs.h            |  10 ++
 mm/shmem.c                          | 162 ++++++++++++++++++++++++++--
 3 files changed, 190 insertions(+), 18 deletions(-)

diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst
index 9c4f228ef4f3..7150aeb3e546 100644
--- a/Documentation/filesystems/tmpfs.rst
+++ b/Documentation/filesystems/tmpfs.rst
@@ -88,14 +88,34 @@ that instance in a system with many CPUs making intensive use of it.
 
 tmpfs also supports quota with the following mount options
 
-========  =============================================================
-quota     Quota accounting is enabled on the mount. Tmpfs is using
-          hidden system quota files that are initialized on mount.
-          Quota limits can quota enforcement can be enabled using
-          standard quota tools.
-usrquota  Same as quota option. Exists for compatibility reasons.
-grpquota  Same as quota option. Exists for compatibility reasons.
-========  =============================================================
+======================== =================================================
+quota                    Quota accounting is enabled on the mount. Tmpfs
+                         is using hidden system quota files that are
+                         initialized on mount. Quota limits can quota
+                         enforcement can be enabled using standard quota
+                         tools.
+usrquota                 Same as quota option. Exists for compatibility.
+grpquota                 Same as quota option. Exists for compatibility.
+usrquota_block_hardlimit Set global user quota block hard limit.
+usrquota_inode_hardlimit Set global user quota inode hard limit.
+usrquota_block_hardlimit Set global group quota block hard limit.
+usrquota_inode_hardlimit Set global group quota inode hard limit.
+======================== =================================================
+
+Quota limit parameters accept a suffix k, m or g for kilo, mega and giga
+and can't be changed on remount. Default global quota limits are taking
+effect for any and all user/group except root the first time the quota
+entry for user/group id is being accessed - typically the first time an
+inode with a particular id ownership is being created after the mount. In
+other words, instead of the limits being initialized to zero, they are
+initialized with the particular value provided with these mount options.
+The limits can be changed for any user/group id at any time as it normally
+can.
+
+When any of the default quota limits are set, quota enforcement is enabled
+automatically as well.
+
+None of the quota related mount options can be set or changed on remount.
 
 
 tmpfs has a mount option to set the NUMA memory allocation policy for
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index 02a328c98d3a..174daeb5d554 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -10,6 +10,10 @@
 #include <linux/xattr.h>
 #include <linux/fs_parser.h>
 
+#if defined(CONFIG_TMPFS) && defined(CONFIG_QUOTA)
+#define SHMEM_QUOTA_TMPFS
+#endif
+
 /* inode in-kernel data */
 
 struct shmem_inode_info {
@@ -39,6 +43,12 @@ struct shmem_inode_info {
 
 struct shmem_sb_info {
 	unsigned long max_blocks;   /* How many blocks are allowed */
+#ifdef SHMEM_QUOTA_TMPFS
+	unsigned long usrquota_block_hardlimit; /* Default user quota block hard limit */
+	unsigned long usrquota_inode_hardlimit; /* Default user quota inode hard limit */
+	unsigned long grpquota_block_hardlimit; /* Default group quota block hard limit */
+	unsigned long grpquota_inode_hardlimit; /* Default group quota inode hard limit */
+#endif
 	struct percpu_counter used_blocks;  /* How many are allocated */
 	unsigned long max_inodes;   /* How many inodes are allowed */
 	unsigned long free_inodes;  /* How many are left for allocation */
diff --git a/mm/shmem.c b/mm/shmem.c
index 26f2effd8f7c..a66a1e4cd0cb 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -110,6 +110,12 @@ struct shmem_falloc {
 struct shmem_options {
 	unsigned long long blocks;
 	unsigned long long inodes;
+#ifdef SHMEM_QUOTA_TMPFS
+	unsigned long usrquota_block_hardlimit;
+	unsigned long usrquota_inode_hardlimit;
+	unsigned long grpquota_block_hardlimit;
+	unsigned long grpquota_inode_hardlimit;
+#endif
 	struct mempolicy *mpol;
 	kuid_t uid;
 	kgid_t gid;
@@ -142,10 +148,6 @@ static unsigned long shmem_default_max_inodes(void)
 }
 #endif
 
-#if defined(CONFIG_TMPFS) && defined(CONFIG_QUOTA)
-#define SHMEM_QUOTA_TMPFS
-#endif
-
 static int shmem_swapin_folio(struct inode *inode, pgoff_t index,
 			     struct folio **foliop, enum sgp_type sgp,
 			     gfp_t gfp, struct vm_area_struct *vma,
@@ -271,6 +273,57 @@ static DEFINE_MUTEX(shmem_swaplist_mutex);
 
 #define SHMEM_MAXQUOTAS 2
 
+int shmem_dquot_acquire(struct dquot *dquot)
+{
+	int type, ret = 0;
+	unsigned int memalloc;
+	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
+	struct shmem_sb_info *sbinfo = SHMEM_SB(dquot->dq_sb);
+
+
+	mutex_lock(&dquot->dq_lock);
+	memalloc = memalloc_nofs_save();
+	if (test_bit(DQ_READ_B, &dquot->dq_flags)) {
+		smp_mb__before_atomic();
+		set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
+		goto out_iolock;
+	}
+
+	type = dquot->dq_id.type;
+	ret = dqopt->ops[type]->read_dqblk(dquot);
+	if (ret < 0)
+		goto out_iolock;
+	/* Set the defaults */
+	if (type == USRQUOTA) {
+		dquot->dq_dqb.dqb_bhardlimit =
+			(sbinfo->usrquota_block_hardlimit << PAGE_SHIFT);
+		dquot->dq_dqb.dqb_ihardlimit = sbinfo->usrquota_inode_hardlimit;
+	} else if (type == GRPQUOTA) {
+		dquot->dq_dqb.dqb_bhardlimit =
+			(sbinfo->grpquota_block_hardlimit << PAGE_SHIFT);
+		dquot->dq_dqb.dqb_ihardlimit = sbinfo->grpquota_inode_hardlimit;
+	}
+	/* Make sure flags update is visible after dquot has been filled */
+	smp_mb__before_atomic();
+	set_bit(DQ_READ_B, &dquot->dq_flags);
+	set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
+out_iolock:
+	memalloc_nofs_restore(memalloc);
+	mutex_unlock(&dquot->dq_lock);
+	return ret;
+}
+
+const struct dquot_operations shmem_dquot_operations = {
+	.write_dquot	= dquot_commit,
+	.acquire_dquot	= shmem_dquot_acquire,
+	.release_dquot	= dquot_release,
+	.mark_dirty	= dquot_mark_dquot_dirty,
+	.write_info	= dquot_commit_info,
+	.alloc_dquot	= dquot_alloc,
+	.destroy_dquot	= dquot_destroy,
+	.get_next_id	= dquot_get_next_id,
+};
+
 /*
  * We don't have any quota files to read, or write to/from, but quota code
  * requires .quota_read and .quota_write to exist.
@@ -288,14 +341,14 @@ static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
 }
 
 
-static int shmem_enable_quotas(struct super_block *sb)
+static int shmem_enable_quotas(struct super_block *sb, unsigned int dquot_flags)
 {
 	int type, err = 0;
 
 	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;
 	for (type = 0; type < SHMEM_MAXQUOTAS; type++) {
 		err = dquot_load_quota_sb(sb, type, QFMT_MEM_ONLY,
-					  DQUOT_USAGE_ENABLED);
+					  dquot_flags);
 		if (err)
 			goto out_err;
 	}
@@ -3559,6 +3612,10 @@ enum shmem_param {
 	Opt_inode32,
 	Opt_inode64,
 	Opt_quota,
+	Opt_usrquota_block_hardlimit,
+	Opt_usrquota_inode_hardlimit,
+	Opt_grpquota_block_hardlimit,
+	Opt_grpquota_inode_hardlimit,
 };
 
 static const struct constant_table shmem_param_enums_huge[] = {
@@ -3583,6 +3640,10 @@ const struct fs_parameter_spec shmem_fs_parameters[] = {
 	fsparam_flag  ("quota",		Opt_quota),
 	fsparam_flag  ("usrquota",	Opt_quota),
 	fsparam_flag  ("grpquota",	Opt_quota),
+	fsparam_string("usrquota_block_hardlimit",	Opt_usrquota_block_hardlimit),
+	fsparam_string("usrquota_inode_hardlimit",	Opt_usrquota_inode_hardlimit),
+	fsparam_string("grpquota_block_hardlimit",	Opt_grpquota_block_hardlimit),
+	fsparam_string("grpquota_inode_hardlimit",	Opt_grpquota_inode_hardlimit),
 	{}
 };
 
@@ -3666,13 +3727,60 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
 		ctx->full_inums = true;
 		ctx->seen |= SHMEM_SEEN_INUMS;
 		break;
-	case Opt_quota:
 #ifdef CONFIG_QUOTA
+	case Opt_quota:
+		ctx->seen |= SHMEM_SEEN_QUOTA;
+		break;
+	case Opt_usrquota_block_hardlimit:
+		size = memparse(param->string, &rest);
+		if (*rest || !size)
+			goto bad_value;
+		size = DIV_ROUND_UP(size, PAGE_SIZE);
+		if (size > ULONG_MAX)
+			return invalfc(fc,
+				       "User quota block hardlimit too large.");
+		ctx->usrquota_block_hardlimit = size;
+		ctx->seen |=  SHMEM_SEEN_QUOTA;
+		break;
+	case Opt_grpquota_block_hardlimit:
+		size = memparse(param->string, &rest);
+		if (*rest || !size)
+			goto bad_value;
+		size = DIV_ROUND_UP(size, PAGE_SIZE);
+		if (size > ULONG_MAX)
+			return invalfc(fc,
+				       "Group quota block hardlimit too large.");
+		ctx->grpquota_block_hardlimit = size;
+		ctx->seen |= SHMEM_SEEN_QUOTA;
+		break;
+	case Opt_usrquota_inode_hardlimit:
+		size = memparse(param->string, &rest);
+		if (*rest || !size)
+			goto bad_value;
+		if (size > ULONG_MAX)
+			return invalfc(fc,
+				       "User quota inode hardlimit too large.");
+		ctx->usrquota_inode_hardlimit = size;
+		ctx->seen |= SHMEM_SEEN_QUOTA;
+		break;
+	case Opt_grpquota_inode_hardlimit:
+		size = memparse(param->string, &rest);
+		if (*rest || !size)
+			goto bad_value;
+		if (size > ULONG_MAX)
+			return invalfc(fc,
+				       "Group quota inode hardlimit too large.");
+		ctx->grpquota_inode_hardlimit = size;
 		ctx->seen |= SHMEM_SEEN_QUOTA;
+		break;
 #else
+	case Opt_quota:
+	case Opt_usrquota_block_hardlimit:
+	case Opt_grpquota_block_hardlimit:
+	case Opt_usrquota_inode_hardlimit:
+	case Opt_grpquota_inode_hardlimit:
 		goto unsupported_parameter;
 #endif
-		break;
 	}
 	return 0;
 
@@ -3778,6 +3886,18 @@ static int shmem_reconfigure(struct fs_context *fc)
 		goto out;
 	}
 
+#ifdef CONFIG_QUOTA
+#define CHANGED_LIMIT(name)						\
+	(ctx->name## _hardlimit &&					\
+	(ctx->name## _hardlimit != sbinfo->name## _hardlimit))
+
+	if (CHANGED_LIMIT(usrquota_block) || CHANGED_LIMIT(usrquota_inode) ||
+	    CHANGED_LIMIT(grpquota_block) || CHANGED_LIMIT(grpquota_inode)) {
+		err = "Cannot change global quota limit on remount";
+		goto out;
+	}
+#endif /* CONFIG_QUOTA */
+
 	if (ctx->seen & SHMEM_SEEN_HUGE)
 		sbinfo->huge = ctx->huge;
 	if (ctx->seen & SHMEM_SEEN_INUMS)
@@ -3942,11 +4062,22 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
 
 #ifdef SHMEM_QUOTA_TMPFS
 	if (ctx->seen & SHMEM_SEEN_QUOTA) {
-		sb->dq_op = &dquot_operations;
+		unsigned int dquot_flags;
+
+		sb->dq_op = &shmem_dquot_operations;
 		sb->s_qcop = &dquot_quotactl_sysfile_ops;
 		sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
 
-		if (shmem_enable_quotas(sb))
+		dquot_flags = DQUOT_USAGE_ENABLED;
+		/*
+		 * If any of the global quota limits are set, enable
+		 * quota enforcement
+		 */
+		if (ctx->usrquota_block_hardlimit || ctx->usrquota_inode_hardlimit ||
+		    ctx->grpquota_block_hardlimit || ctx->grpquota_inode_hardlimit)
+			dquot_flags |= DQUOT_LIMITS_ENABLED;
+
+		if (shmem_enable_quotas(sb, dquot_flags))
 			goto failed;
 	}
 #endif  /* SHMEM_QUOTA_TMPFS */
@@ -3960,6 +4091,17 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
 	if (!sb->s_root)
 		goto failed;
 
+#ifdef SHMEM_QUOTA_TMPFS
+	/*
+	 * Set quota hard limits after shmem_get_inode() to avoid setting
+	 * it for root
+	 */
+	sbinfo->usrquota_block_hardlimit = ctx->usrquota_block_hardlimit;
+	sbinfo->usrquota_inode_hardlimit = ctx->usrquota_inode_hardlimit;
+	sbinfo->grpquota_block_hardlimit = ctx->grpquota_block_hardlimit;
+	sbinfo->grpquota_inode_hardlimit = ctx->grpquota_inode_hardlimit;
+#endif  /* SHMEM_QUOTA_TMPFS */
+
 	return 0;
 
 failed:
-- 
2.38.1

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Darrick J. Wong]

On Mon, Nov 21, 2022 at 03:28:52PM +0100, Lukas Czerner wrote:
> In memory quota format relies on quota infrastructure to store dquot
> information for us. While conventional quota formats for file systems
> with persistent storage can load quota information into dquot from the
> storage on-demand and hence quota dquot shrinker can free any dquot that
> is not currently being used, it must be avoided here. Otherwise we can
> lose valuable information, user provided limits, because there is no
> persistent storage to load the information from afterwards.
> 
> One information that in-memory quota format needs to keep track of is a
> sorted list of ids for each quota type. This is done by utilizing an rb
> tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> 
> This format can be used to support quota on file system without persistent
> storage such as tmpfs.
> 
> Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> ---
>  fs/quota/Kconfig           |   8 ++
>  fs/quota/Makefile          |   1 +
>  fs/quota/dquot.c           |   3 +
>  fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
>  include/linux/quota.h      |   7 +-
>  include/uapi/linux/quota.h |   1 +
>  6 files changed, 279 insertions(+), 1 deletion(-)
>  create mode 100644 fs/quota/quota_mem.c
> 
> diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> index b59cd172b5f9..8ea9656ca37b 100644
> --- a/fs/quota/Kconfig
> +++ b/fs/quota/Kconfig
> @@ -67,6 +67,14 @@ config QFMT_V2
>  	  also supports 64-bit inode and block quota limits. If you need this
>  	  functionality say Y here.
>  
> +config QFMT_MEM
> +	tristate "Quota in-memory format support "
> +	depends on QUOTA
> +	help
> +	  This config option enables kernel support for in-memory quota
> +	  format support. Useful to support quota on file system without
> +	  permanent storage. If you need this functionality say Y here.
> +
>  config QUOTACTL
>  	bool
>  	default n
> diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> index 9160639daffa..935be3f7b731 100644
> --- a/fs/quota/Makefile
> +++ b/fs/quota/Makefile
> @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
>  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
>  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
>  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> index 0427b44bfee5..f1a7a03632a2 100644
> --- a/fs/quota/dquot.c
> +++ b/fs/quota/dquot.c
> @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
>  	spin_lock(&dq_list_lock);
>  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
>  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> +			continue;
>  		remove_dquot_hash(dquot);
>  		remove_free_dquot(dquot);
>  		remove_inuse(dquot);
> diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> new file mode 100644
> index 000000000000..7d5e82122143
> --- /dev/null
> +++ b/fs/quota/quota_mem.c
> @@ -0,0 +1,260 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * In memory quota format relies on quota infrastructure to store dquot
> + * information for us. While conventional quota formats for file systems
> + * with persistent storage can load quota information into dquot from the
> + * storage on-demand and hence quota dquot shrinker can free any dquot
> + * that is not currently being used, it must be avoided here. Otherwise we
> + * can lose valuable information, user provided limits, because there is
> + * no persistent storage to load the information from afterwards.

Hmm.  dquots can't /ever/ be reclaimed?  struct dquot is ~256 bytes, and
assuming 32-bit uids, the upper bound on dquot usage is 2^(32+8) bytes
== 1TB of memory usage?  Once allocated, you'd have to reboot the whole
machine to get that memory back?

Would it be wise to "persist" dquot contents to a (private) tmpfs file
to facilitate incore dquot reclaim?  The tmpfs file data can be paged
out, or even punched if all the dquot records in that page go back to
default settings.

--D

> + *
> + * One information that in-memory quota format needs to keep track of is
> + * a sorted list of ids for each quota type. This is done by utilizing
> + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> + * type.
> + *
> + * This format can be used to support quota on file system without persistent
> + * storage such as tmpfs.
> + */
> +#include <linux/errno.h>
> +#include <linux/fs.h>
> +#include <linux/mount.h>
> +#include <linux/kernel.h>
> +#include <linux/init.h>
> +#include <linux/module.h>
> +#include <linux/slab.h>
> +#include <linux/rbtree.h>
> +
> +#include <linux/quotaops.h>
> +#include <linux/quota.h>
> +
> +MODULE_AUTHOR("Lukas Czerner");
> +MODULE_DESCRIPTION("Quota in-memory format support");
> +MODULE_LICENSE("GPL");
> +
> +/*
> + * The following constants define the amount of time given a user
> + * before the soft limits are treated as hard limits (usually resulting
> + * in an allocation failure). The timer is started when the user crosses
> + * their soft limit, it is reset when they go below their soft limit.
> + */
> +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> +
> +struct quota_id {
> +	struct rb_node	node;
> +	qid_t		id;
> +};
> +
> +static int mem_check_quota_file(struct super_block *sb, int type)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 1;
> +}
> +
> +/*
> + * There is no real quota file. Just allocate rb_root for quota ids and
> + * set limits
> + */
> +static int mem_read_file_info(struct super_block *sb, int type)
> +{
> +	struct quota_info *dqopt = sb_dqopt(sb);
> +	struct mem_dqinfo *info = &dqopt->info[type];
> +	int ret = 0;
> +
> +	down_read(&dqopt->dqio_sem);
> +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> +		ret = -EINVAL;
> +		goto out_unlock;
> +	}
> +
> +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> +	if (!info->dqi_priv) {
> +		ret = -ENOMEM;
> +		goto out_unlock;
> +	}
> +
> +	/*
> +	 * Used space is stored as unsigned 64-bit value in bytes but
> +	 * quota core supports only signed 64-bit values so use that
> +	 * as a limit
> +	 */
> +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> +
> +	info->dqi_bgrace = MAX_DQ_TIME;
> +	info->dqi_igrace = MAX_IQ_TIME;
> +	info->dqi_flags = 0;
> +
> +out_unlock:
> +	up_read(&dqopt->dqio_sem);
> +	return ret;
> +}
> +
> +static int mem_write_file_info(struct super_block *sb, int type)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 0;
> +}
> +
> +/*
> + * Free all the quota_id entries in the rb tree and rb_root.
> + */
> +static int mem_free_file_info(struct super_block *sb, int type)
> +{
> +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> +	struct rb_root *root = info->dqi_priv;
> +	struct quota_id *entry;
> +	struct rb_node *node;
> +
> +	info->dqi_priv = NULL;
> +	node = rb_first(root);
> +	while (node) {
> +		entry = rb_entry(node, struct quota_id, node);
> +		node = rb_next(&entry->node);
> +
> +		rb_erase(&entry->node, root);
> +		kfree(entry);
> +	}
> +
> +	kfree(root);
> +	return 0;
> +}
> +
> +/*
> + * There is no real quota file, nothing to read. Just insert the id in
> + * the rb tree.
> + */
> +static int mem_read_dquot(struct dquot *dquot)
> +{
> +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> +	struct rb_node *parent = NULL, *new_node = NULL;
> +	struct quota_id *new_entry, *entry;
> +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> +	int ret = 0;
> +
> +	down_write(&dqopt->dqio_sem);
> +
> +	while (*n) {
> +		parent = *n;
> +		entry = rb_entry(parent, struct quota_id, node);
> +
> +		if (id < entry->id)
> +			n = &(*n)->rb_left;
> +		else if (id > entry->id)
> +			n = &(*n)->rb_right;
> +		else
> +			goto out_unlock;
> +	}
> +
> +	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
> +	if (!new_entry) {
> +		ret = -ENOMEM;
> +		goto out_unlock;
> +	}
> +
> +	new_entry->id = id;
> +	new_node = &new_entry->node;
> +	rb_link_node(new_node, parent, n);
> +	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
> +	dquot->dq_off = 1;
> +	/*
> +	 * Make sure dquot is never released by a shrinker because we
> +	 * rely on quota infrastructure to store mem_dqblk in dquot.
> +	 */
> +	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
> +	set_bit(DQ_FAKE_B, &dquot->dq_flags);
> +
> +out_unlock:
> +	up_write(&dqopt->dqio_sem);
> +	return ret;
> +}
> +
> +static int mem_write_dquot(struct dquot *dquot)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 0;
> +}
> +
> +static int mem_release_dquot(struct dquot *dquot)
> +{
> +	/*
> +	 * Everything is in memory only, release once we're done with
> +	 * quota via mem_free_file_info().
> +	 */
> +	return 0;
> +}
> +
> +static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
> +{
> +	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
> +	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
> +	qid_t id = from_kqid(&init_user_ns, *qid);
> +	struct quota_info *dqopt = sb_dqopt(sb);
> +	struct quota_id *entry = NULL;
> +	int ret = 0;
> +
> +	down_read(&dqopt->dqio_sem);
> +	while (node) {
> +		entry = rb_entry(node, struct quota_id, node);
> +
> +		if (id < entry->id)
> +			node = node->rb_left;
> +		else if (id > entry->id)
> +			node = node->rb_right;
> +		else
> +			goto got_next_id;
> +	}
> +
> +	if (!entry) {
> +		ret = -ENOENT;
> +		goto out_unlock;
> +	}
> +
> +	if (id > entry->id) {
> +		node = rb_next(&entry->node);
> +		if (!node) {
> +			ret = -ENOENT;
> +			goto out_unlock;
> +		}
> +		entry = rb_entry(node, struct quota_id, node);
> +	}
> +
> +got_next_id:
> +	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
> +out_unlock:
> +	up_read(&dqopt->dqio_sem);
> +	return ret;
> +}
> +
> +static const struct quota_format_ops mem_format_ops = {
> +	.check_quota_file	= mem_check_quota_file,
> +	.read_file_info		= mem_read_file_info,
> +	.write_file_info	= mem_write_file_info,
> +	.free_file_info		= mem_free_file_info,
> +	.read_dqblk		= mem_read_dquot,
> +	.commit_dqblk		= mem_write_dquot,
> +	.release_dqblk		= mem_release_dquot,
> +	.get_next_id		= mem_get_next_id,
> +};
> +
> +static struct quota_format_type mem_quota_format = {
> +	.qf_fmt_id	= QFMT_MEM_ONLY,
> +	.qf_ops		= &mem_format_ops,
> +	.qf_owner	= THIS_MODULE
> +};
> +
> +static int __init init_mem_quota_format(void)
> +{
> +	return register_quota_format(&mem_quota_format);
> +}
> +
> +static void __exit exit_mem_quota_format(void)
> +{
> +	unregister_quota_format(&mem_quota_format);
> +}
> +
> +module_init(init_mem_quota_format);
> +module_exit(exit_mem_quota_format);
> diff --git a/include/linux/quota.h b/include/linux/quota.h
> index fd692b4a41d5..4398e05c8b72 100644
> --- a/include/linux/quota.h
> +++ b/include/linux/quota.h
> @@ -285,7 +285,11 @@ static inline void dqstats_dec(unsigned int type)
>  #define DQ_FAKE_B	3	/* no limits only usage */
>  #define DQ_READ_B	4	/* dquot was read into memory */
>  #define DQ_ACTIVE_B	5	/* dquot is active (dquot_release not called) */
> -#define DQ_LASTSET_B	6	/* Following 6 bits (see QIF_) are reserved\
> +#define DQ_NO_SHRINK_B	6	/* modified dquot (not DQ_FAKE_B) is never to
> +				 * be released by a shrinker. It should remain
> +				 * in memory until quotas are being disabled on
> +				 * unmount. */
> +#define DQ_LASTSET_B	7	/* Following 6 bits (see QIF_) are reserved\
>  				 * for the mask of entries set via SETQUOTA\
>  				 * quotactl. They are set under dq_data_lock\
>  				 * and the quota format handling dquot can\
> @@ -536,6 +540,7 @@ struct quota_module_name {
>  	{QFMT_VFS_OLD, "quota_v1"},\
>  	{QFMT_VFS_V0, "quota_v2"},\
>  	{QFMT_VFS_V1, "quota_v2"},\
> +	{QFMT_MEM_ONLY, "quota_mem"},\
>  	{0, NULL}}
>  
>  #endif /* _QUOTA_ */
> diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
> index f17c9636a859..ee9d2bad00c7 100644
> --- a/include/uapi/linux/quota.h
> +++ b/include/uapi/linux/quota.h
> @@ -77,6 +77,7 @@
>  #define	QFMT_VFS_V0 2
>  #define QFMT_OCFS2 3
>  #define	QFMT_VFS_V1 4
> +#define	QFMT_MEM_ONLY 5
>  
>  /* Size of block in which space limits are passed through the quota
>   * interface */
> -- 
> 2.38.1
> 

Re: [PATCH v2 3/3] shmem: implement mount options for global quota limits

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 7265 bytes --]

Hi Lukas,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on jack-fs/for_next]
[also build test WARNING on linus/master v6.1-rc6 next-20221121]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Lukas-Czerner/shmem-user-and-group-quota-support-for-tmpfs/20221121-223006
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git for_next
patch link:    https://lore.kernel.org/r/20221121142854.91109-4-lczerner%40redhat.com
patch subject: [PATCH v2 3/3] shmem: implement mount options for global quota limits
config: hexagon-randconfig-r045-20221121
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project af8c49dc1ec44339d915d988ffe0f38da68ca0e7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/e5478d3304138f156d65c72620adfb05ce079aa1
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Lukas-Czerner/shmem-user-and-group-quota-support-for-tmpfs/20221121-223006
        git checkout e5478d3304138f156d65c72620adfb05ce079aa1
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from mm/shmem.c:29:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from mm/shmem.c:29:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from mm/shmem.c:29:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
>> mm/shmem.c:276:5: warning: no previous prototype for function 'shmem_dquot_acquire' [-Wmissing-prototypes]
   int shmem_dquot_acquire(struct dquot *dquot)
       ^
   mm/shmem.c:276:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int shmem_dquot_acquire(struct dquot *dquot)
   ^
   static 
   7 warnings generated.


vim +/shmem_dquot_acquire +276 mm/shmem.c

   275	
 > 276	int shmem_dquot_acquire(struct dquot *dquot)
   277	{
   278		int type, ret = 0;
   279		unsigned int memalloc;
   280		struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
   281		struct shmem_sb_info *sbinfo = SHMEM_SB(dquot->dq_sb);
   282	
   283	
   284		mutex_lock(&dquot->dq_lock);
   285		memalloc = memalloc_nofs_save();
   286		if (test_bit(DQ_READ_B, &dquot->dq_flags)) {
   287			smp_mb__before_atomic();
   288			set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
   289			goto out_iolock;
   290		}
   291	
   292		type = dquot->dq_id.type;
   293		ret = dqopt->ops[type]->read_dqblk(dquot);
   294		if (ret < 0)
   295			goto out_iolock;
   296		/* Set the defaults */
   297		if (type == USRQUOTA) {
   298			dquot->dq_dqb.dqb_bhardlimit =
   299				(sbinfo->usrquota_block_hardlimit << PAGE_SHIFT);
   300			dquot->dq_dqb.dqb_ihardlimit = sbinfo->usrquota_inode_hardlimit;
   301		} else if (type == GRPQUOTA) {
   302			dquot->dq_dqb.dqb_bhardlimit =
   303				(sbinfo->grpquota_block_hardlimit << PAGE_SHIFT);
   304			dquot->dq_dqb.dqb_ihardlimit = sbinfo->grpquota_inode_hardlimit;
   305		}
   306		/* Make sure flags update is visible after dquot has been filled */
   307		smp_mb__before_atomic();
   308		set_bit(DQ_READ_B, &dquot->dq_flags);
   309		set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
   310	out_iolock:
   311		memalloc_nofs_restore(memalloc);
   312		mutex_unlock(&dquot->dq_lock);
   313		return ret;
   314	}
   315	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 116700 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/hexagon 6.1.0-rc4 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 16.0.0 (git://gitmirror/llvm_project af8c49dc1ec44339d915d988ffe0f38da68ca0e7)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=160000
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=160000
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=160000
CONFIG_RUST_IS_AVAILABLE=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_COMPILE_TEST=y
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_BUILD_SALT=""
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
CONFIG_WATCH_QUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
CONFIG_AUDIT=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_SIM=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_IRQ_FASTEOI_HIERARCHY_HANDLERS=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_IDLE=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ=y
# CONFIG_HIGH_RES_TIMERS is not set
# end of Timers subsystem

CONFIG_BPF=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# end of BPF subsystem

CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
# CONFIG_TASK_DELAY_ACCT is not set
# CONFIG_TASK_XACCT is not set
CONFIG_PSI=y
# CONFIG_PSI_DEFAULT_DISABLED is not set
# end of CPU/Task time and stats accounting

# CONFIG_CPU_ISOLATION is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_FORCE_TASKS_RCU=y
CONFIG_TASKS_RCU=y
# CONFIG_FORCE_TASKS_RUDE_RCU is not set
# CONFIG_FORCE_TASKS_TRACE_RCU is not set
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_NOCB_CPU is not set
CONFIG_TASKS_TRACE_RCU_READ_MB=y
# end of RCU Subsystem

CONFIG_IKCONFIG=m
CONFIG_IKCONFIG_PROC=y
CONFIG_IKHEADERS=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_PRINTK_INDEX=y

#
# Scheduler features
#
# end of Scheduler features

CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_FAVOR_DYNMODS=y
# CONFIG_MEMCG is not set
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_CGROUP_PIDS=y
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_MISC is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_CHECKPOINT_RESTORE=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_SYSFS_DEPRECATED_V2 is not set
CONFIG_RELAY=y
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BOOT_CONFIG is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
# CONFIG_EXPERT is not set
CONFIG_MULTIUSER=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_KCMP=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# end of Kernel Performance Events And Counters

CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
# end of General setup

#
# Linux Kernel Configuration for Hexagon
#
CONFIG_HEXAGON=y
CONFIG_HEXAGON_PHYS_OFFSET=y
CONFIG_FRAME_POINTER=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_EARLY_PRINTK=y
CONFIG_MMU=y
CONFIG_GENERIC_CSUM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_GENERIC_BUG=y

#
# Machine selection
#
CONFIG_HEXAGON_COMET=y
CONFIG_HEXAGON_ARCH_VERSION=2
CONFIG_CMDLINE=""
CONFIG_SMP=y
CONFIG_NR_CPUS=6
# CONFIG_PAGE_SIZE_4KB is not set
# CONFIG_PAGE_SIZE_16KB is not set
# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_PAGE_SIZE_256KB=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# end of Machine selection

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_LTO_NONE=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_PGTABLE_LEVELS=2
CONFIG_ISA_BUS_API=y
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_ARCH_NO_PREEMPT=y
CONFIG_LOCK_EVENT_COUNTS=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# end of GCOV-based kernel profiling
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
# CONFIG_MODULE_UNLOAD is not set
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
# CONFIG_MODULE_SIG_ALL is not set
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=y
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=y
# CONFIG_BLK_DEV_ZONED is not set
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_BLK_DEV_THROTTLING_LOW=y
CONFIG_BLK_WBT=y
# CONFIG_BLK_WBT_MQ is not set
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_FC_APPID is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
CONFIG_BLK_CGROUP_IOPRIO=y
CONFIG_BLK_DEBUG_FS=y
CONFIG_BLK_SED_OPAL=y
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_MQ_RDMA=y

#
# IO Schedulers
#
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers

CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=m
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
# CONFIG_SWAP is not set

#
# SLAB allocator options
#
CONFIG_SLAB=y
# CONFIG_SLUB is not set
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# end of SLAB allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
CONFIG_COMPAT_BRK=y
CONFIG_FLATMEM=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MEMORY_BALLOON=y
# CONFIG_COMPACTION is not set
CONFIG_PAGE_REPORTING=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_CMA is not set
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PERCPU_STATS=y
# CONFIG_GUP_TEST is not set
CONFIG_ANON_VMA_NAME=y
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set

#
# Data Access Monitoring
#
CONFIG_DAMON=y
# CONFIG_DAMON_VADDR is not set
CONFIG_DAMON_PADDR=y
CONFIG_DAMON_SYSFS=y
CONFIG_DAMON_RECLAIM=y
CONFIG_DAMON_LRU_SORT=y
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=m
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=m
# CONFIG_TLS is not set
CONFIG_XFRM=y
CONFIG_XFRM_OFFLOAD=y
CONFIG_XFRM_ALGO=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_INTERFACE is not set
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_AH=y
CONFIG_XFRM_ESP=m
# CONFIG_NET_KEY is not set
CONFIG_XFRM_ESPINTCP=y
CONFIG_SMC=m
# CONFIG_SMC_DIAG is not set
# CONFIG_XDP_SOCKETS is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=y
CONFIG_NET_IPGRE_DEMUX=y
CONFIG_NET_IP_TUNNEL=y
CONFIG_NET_IPGRE=m
# CONFIG_NET_IPGRE_BROADCAST is not set
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
# CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
# CONFIG_IP_PIMSM_V1 is not set
# CONFIG_IP_PIMSM_V2 is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
CONFIG_NET_UDP_TUNNEL=y
CONFIG_NET_FOU=y
CONFIG_NET_FOU_IP_TUNNELS=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=m
CONFIG_INET_ESP_OFFLOAD=m
# CONFIG_INET_ESPINTCP is not set
# CONFIG_INET_IPCOMP is not set
CONFIG_INET_TUNNEL=y
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
# CONFIG_TCP_CONG_CUBIC is not set
CONFIG_TCP_CONG_WESTWOOD=m
# CONFIG_TCP_CONG_HTCP is not set
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_NV=m
CONFIG_TCP_CONG_SCALABLE=y
CONFIG_TCP_CONG_LP=m
# CONFIG_TCP_CONG_VENO is not set
CONFIG_TCP_CONG_YEAH=m
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_TCP_CONG_DCTCP is not set
CONFIG_TCP_CONG_CDG=y
CONFIG_TCP_CONG_BBR=y
CONFIG_DEFAULT_BIC=y
# CONFIG_DEFAULT_CDG is not set
# CONFIG_DEFAULT_BBR is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="bic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
CONFIG_INET6_ESP=m
CONFIG_INET6_ESP_OFFLOAD=m
CONFIG_INET6_ESPINTCP=y
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
CONFIG_INET6_TUNNEL=y
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=y
CONFIG_IPV6_GRE=y
CONFIG_IPV6_FOU=y
CONFIG_IPV6_FOU_TUNNEL=y
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
# CONFIG_IPV6_MROUTE is not set
CONFIG_IPV6_SEG6_LWTUNNEL=y
# CONFIG_IPV6_SEG6_HMAC is not set
CONFIG_IPV6_SEG6_BPF=y
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
CONFIG_MPTCP=y
# CONFIG_MPTCP_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
# CONFIG_NETFILTER is not set
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=y
CONFIG_SCTP_DBG_OBJCNT=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5 is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
CONFIG_SCTP_COOKIE_HMAC_SHA1=y
CONFIG_RDS=y
CONFIG_RDS_TCP=y
# CONFIG_RDS_DEBUG is not set
# CONFIG_TIPC is not set
CONFIG_ATM=y
CONFIG_ATM_CLIP=m
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=m
CONFIG_ATM_MPOA=m
# CONFIG_ATM_BR2684 is not set
# CONFIG_L2TP is not set
CONFIG_STP=y
CONFIG_GARP=m
CONFIG_MRP=m
CONFIG_BRIDGE=y
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
CONFIG_BRIDGE_MRP=y
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
CONFIG_LLC=y
# CONFIG_LLC2 is not set
CONFIG_ATALK=m
# CONFIG_DEV_APPLETALK is not set
CONFIG_X25=y
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
CONFIG_IEEE802154=m
# CONFIG_IEEE802154_NL802154_EXPERIMENTAL is not set
# CONFIG_IEEE802154_SOCKET is not set
CONFIG_MAC802154=m
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=y
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=y
CONFIG_NET_SCH_ATM=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=y
# CONFIG_NET_SCH_SFB is not set
CONFIG_NET_SCH_SFQ=m
# CONFIG_NET_SCH_TEQL is not set
CONFIG_NET_SCH_TBF=m
# CONFIG_NET_SCH_CBS is not set
# CONFIG_NET_SCH_ETF is not set
CONFIG_NET_SCH_TAPRIO=m
CONFIG_NET_SCH_GRED=m
# CONFIG_NET_SCH_DSMARK is not set
# CONFIG_NET_SCH_NETEM is not set
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
CONFIG_NET_SCH_SKBPRIO=y
# CONFIG_NET_SCH_CHOKE is not set
CONFIG_NET_SCH_QFQ=m
CONFIG_NET_SCH_CODEL=y
CONFIG_NET_SCH_FQ_CODEL=y
# CONFIG_NET_SCH_CAKE is not set
# CONFIG_NET_SCH_FQ is not set
CONFIG_NET_SCH_HHF=y
# CONFIG_NET_SCH_PIE is not set
CONFIG_NET_SCH_PLUG=m
# CONFIG_NET_SCH_ETS is not set
CONFIG_NET_SCH_DEFAULT=y
# CONFIG_DEFAULT_CODEL is not set
# CONFIG_DEFAULT_FQ_CODEL is not set
# CONFIG_DEFAULT_SFQ is not set
CONFIG_DEFAULT_PFIFO_FAST=y
CONFIG_DEFAULT_NET_SCH="pfifo_fast"

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=y
CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_FW=y
# CONFIG_NET_CLS_U32 is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=m
# CONFIG_NET_CLS_BPF is not set
CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_CLS_MATCHALL=m
# CONFIG_NET_EMATCH is not set
# CONFIG_NET_CLS_ACT is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
CONFIG_OPENVSWITCH=y
CONFIG_OPENVSWITCH_GRE=m
CONFIG_OPENVSWITCH_VXLAN=m
CONFIG_OPENVSWITCH_GENEVE=y
CONFIG_VSOCKETS=m
CONFIG_VSOCKETS_DIAG=m
CONFIG_VSOCKETS_LOOPBACK=m
# CONFIG_VIRTIO_VSOCKETS is not set
CONFIG_VIRTIO_VSOCKETS_COMMON=m
CONFIG_NETLINK_DIAG=m
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=y
CONFIG_MPLS_ROUTING=y
CONFIG_MPLS_IPTUNNEL=m
CONFIG_NET_NSH=y
CONFIG_HSR=y
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
CONFIG_QRTR=y
CONFIG_QRTR_SMD=m
# CONFIG_QRTR_TUN is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
CONFIG_CAN_RAW=y
CONFIG_CAN_BCM=y
CONFIG_CAN_GW=y
CONFIG_CAN_J1939=m
CONFIG_CAN_ISOTP=m
CONFIG_BT=y
# CONFIG_BT_BREDR is not set
CONFIG_BT_LE=y
CONFIG_BT_LEDS=y
CONFIG_BT_MSFTEXT=y
# CONFIG_BT_AOSPEXT is not set
# CONFIG_BT_DEBUGFS is not set
CONFIG_BT_FEATURE_DEBUG=y

#
# Bluetooth device drivers
#
CONFIG_BT_INTEL=m
CONFIG_BT_QCA=y
CONFIG_BT_MTK=m
# CONFIG_BT_HCIBTSDIO is not set
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_SERDEV=y
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
# CONFIG_BT_HCIUART_ATH3K is not set
# CONFIG_BT_HCIUART_LL is not set
CONFIG_BT_HCIUART_3WIRE=y
CONFIG_BT_HCIUART_INTEL=y
# CONFIG_BT_HCIUART_BCM is not set
# CONFIG_BT_HCIUART_QCA is not set
CONFIG_BT_HCIUART_AG6XX=y
# CONFIG_BT_HCIUART_MRVL is not set
# CONFIG_BT_HCIDTL1 is not set
CONFIG_BT_HCIBT3C=m
# CONFIG_BT_HCIBLUECARD is not set
CONFIG_BT_HCIVHCI=m
# CONFIG_BT_MRVL is not set
CONFIG_BT_MTKSDIO=m
CONFIG_BT_MTKUART=m
CONFIG_BT_QCOMSMD=y
# CONFIG_BT_VIRTIO is not set
# end of Bluetooth device drivers

CONFIG_AF_RXRPC=y
CONFIG_AF_RXRPC_IPV6=y
# CONFIG_AF_RXRPC_INJECT_LOSS is not set
CONFIG_AF_RXRPC_DEBUG=y
CONFIG_RXKAD=y
CONFIG_AF_KCM=m
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=y
# CONFIG_NL80211_TESTMODE is not set
CONFIG_CFG80211_DEVELOPER_WARNINGS=y
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_LIB80211=y
CONFIG_LIB80211_DEBUG=y
CONFIG_MAC80211=y
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
CONFIG_MAC80211_DEBUG_MENU=y
# CONFIG_MAC80211_NOINLINE is not set
CONFIG_MAC80211_VERBOSE_DEBUG=y
# CONFIG_MAC80211_MLME_DEBUG is not set
# CONFIG_MAC80211_STA_DEBUG is not set
# CONFIG_MAC80211_HT_DEBUG is not set
# CONFIG_MAC80211_OCB_DEBUG is not set
# CONFIG_MAC80211_IBSS_DEBUG is not set
# CONFIG_MAC80211_PS_DEBUG is not set
# CONFIG_MAC80211_TDLS_DEBUG is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
CONFIG_CAIF=m
CONFIG_CAIF_DEBUG=y
CONFIG_CAIF_NETDEV=m
CONFIG_CAIF_USB=m
CONFIG_CEPH_LIB=y
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_NET_DEVLINK=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=y
# CONFIG_ETHTOOL_NETLINK is not set

#
# Device Drivers
#
CONFIG_PCCARD=y
CONFIG_PCMCIA=m
# CONFIG_PCMCIA_LOAD_CIS is not set

#
# PC-card bridges
#

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
CONFIG_FW_LOADER_COMPRESS=y
# CONFIG_FW_LOADER_COMPRESS_XZ is not set
CONFIG_FW_LOADER_COMPRESS_ZSTD=y
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y
CONFIG_TEST_ASYNC_DRIVER_PROBE=m
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_SOC_BUS=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_SPMI=m
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
CONFIG_DMA_FENCE_TRACE=y
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_ARM_INTEGRATOR_LM is not set
# CONFIG_BT1_APB is not set
# CONFIG_BT1_AXI is not set
# CONFIG_INTEL_IXP4XX_EB is not set
CONFIG_QCOM_EBI2=y
# CONFIG_MHI_BUS is not set
CONFIG_MHI_BUS_EP=y
# end of Bus devices

CONFIG_CONNECTOR=y
# CONFIG_PROC_EVENTS is not set

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
CONFIG_ARM_SCMI_PROTOCOL=y
CONFIG_ARM_SCMI_HAVE_TRANSPORT=y
CONFIG_ARM_SCMI_HAVE_SHMEM=y
CONFIG_ARM_SCMI_TRANSPORT_MAILBOX=y
# CONFIG_ARM_SCMI_TRANSPORT_VIRTIO is not set
CONFIG_ARM_SCMI_POWER_DOMAIN=m
CONFIG_ARM_SCMI_POWER_CONTROL=y
# end of ARM System Control and Management Interface Protocol

CONFIG_ARM_SCPI_PROTOCOL=y
CONFIG_ARM_SCPI_POWER_DOMAIN=m
# CONFIG_MTK_ADSP_IPC is not set
CONFIG_QCOM_SCM=y
# CONFIG_QCOM_SCM_DOWNLOAD_MODE_DEFAULT is not set
CONFIG_BCM47XX_NVRAM=y
# CONFIG_BCM47XX_SPROM is not set
CONFIG_TEE_BNXT_FW=m
CONFIG_GOOGLE_FIRMWARE=y
CONFIG_IMX_DSP=m
# CONFIG_IMX_SCU is not set

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
CONFIG_CDROM=y
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_CDROM_PKTCDVD=y
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_CDROM_PKTCDVD_WCACHE=y
CONFIG_ATA_OVER_ETH=m
CONFIG_VIRTIO_BLK=y
CONFIG_BLK_DEV_RBD=y
# CONFIG_BLK_DEV_UBLK is not set

#
# NVME Support
#
CONFIG_NVME_COMMON=y
CONFIG_NVME_CORE=y
CONFIG_NVME_MULTIPATH=y
CONFIG_NVME_VERBOSE_ERRORS=y
CONFIG_NVME_FABRICS=y
CONFIG_NVME_FC=y
CONFIG_NVME_TCP=y
CONFIG_NVME_AUTH=y
# CONFIG_NVME_TARGET is not set
# end of NVME Support

#
# Misc devices
#
CONFIG_AD525X_DPOT=m
CONFIG_AD525X_DPOT_I2C=m
CONFIG_DUMMY_IRQ=y
CONFIG_ICS932S401=m
CONFIG_ATMEL_SSC=y
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_QCOM_COINCELL=y
CONFIG_APDS9802ALS=m
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
CONFIG_SENSORS_TSL2550=m
# CONFIG_SENSORS_BH1770 is not set
CONFIG_SENSORS_APDS990X=m
CONFIG_HMC6352=m
CONFIG_DS1682=m
CONFIG_SRAM=y
CONFIG_XILINX_SDFEC=m
CONFIG_C2PORT=m

#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
CONFIG_EEPROM_EE1004=m
# end of EEPROM support

#
# Texas Instruments shared transport line discipline
#
CONFIG_TI_ST=y
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module (requires I2C)
#
CONFIG_ALTERA_STAPL=m
CONFIG_ECHO=m
CONFIG_UACCE=m
CONFIG_PVPANIC=y
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
# CONFIG_BLK_DEV_SD is not set
# CONFIG_CHR_DEV_ST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_CHR_DEV_SG is not set
CONFIG_BLK_DEV_BSG=y
CONFIG_CHR_DEV_SCH=y
CONFIG_SCSI_ENCLOSURE=m
# CONFIG_SCSI_CONSTANTS is not set
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
# CONFIG_SCSI_ISCSI_ATTRS is not set
CONFIG_SCSI_SAS_ATTRS=y
CONFIG_SCSI_SAS_LIBSAS=m
# CONFIG_SCSI_SAS_ATA is not set
CONFIG_SCSI_SAS_HOST_SMP=y
# CONFIG_SCSI_SRP_ATTRS is not set
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
CONFIG_SCSI_HISI_SAS=m
CONFIG_SCSI_HISI_SAS_DEBUGFS_DEFAULT_ENABLE=y
CONFIG_LIBFC=m
CONFIG_LIBFCOE=m
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_VIRTIO is not set
CONFIG_SCSI_LOWLEVEL_PCMCIA=y
CONFIG_PCMCIA_AHA152X=m
# CONFIG_PCMCIA_FDOMAIN is not set
CONFIG_PCMCIA_NINJA_SCSI=m
CONFIG_PCMCIA_QLOGIC=m
CONFIG_PCMCIA_SYM53C500=m
# CONFIG_SCSI_DH is not set
# end of SCSI device support

CONFIG_ATA=m
CONFIG_SATA_HOST=y
# CONFIG_ATA_VERBOSE_ERROR is not set
CONFIG_ATA_FORCE=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI_PLATFORM=m
CONFIG_AHCI_BRCM=m
CONFIG_AHCI_DA850=m
# CONFIG_AHCI_DM816 is not set
CONFIG_AHCI_DWC=m
# CONFIG_AHCI_ST is not set
# CONFIG_AHCI_IMX is not set
# CONFIG_AHCI_MTK is not set
CONFIG_AHCI_MVEBU=m
CONFIG_AHCI_SUNXI=m
# CONFIG_AHCI_TEGRA is not set
# CONFIG_AHCI_XGENE is not set
CONFIG_SATA_FSL=m
# CONFIG_SATA_AHCI_SEATTLE is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_ATA_BMDMA is not set

#
# PIO-only SFF controllers
#
CONFIG_PATA_IXP4XX_CF=m
CONFIG_PATA_PCMCIA=m
# CONFIG_PATA_SAMSUNG_CF is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_MD is not set
CONFIG_TARGET_CORE=m
# CONFIG_TCM_IBLOCK is not set
CONFIG_TCM_FILEIO=m
# CONFIG_TCM_PSCSI is not set
CONFIG_LOOPBACK_TARGET=m
# CONFIG_TCM_FC is not set
CONFIG_ISCSI_TARGET=m
# CONFIG_SBP_TARGET is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=y
CONFIG_FIREWIRE_SBP2=y
CONFIG_FIREWIRE_NET=m
# end of IEEE 1394 (FireWire) support

CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
CONFIG_BONDING=m
CONFIG_DUMMY=y
CONFIG_WIREGUARD=m
CONFIG_WIREGUARD_DEBUG=y
CONFIG_EQUALIZER=m
CONFIG_NET_TEAM=y
CONFIG_NET_TEAM_MODE_BROADCAST=y
CONFIG_NET_TEAM_MODE_ROUNDROBIN=y
CONFIG_NET_TEAM_MODE_RANDOM=y
CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=m
CONFIG_NET_TEAM_MODE_LOADBALANCE=m
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
CONFIG_IPVLAN=m
# CONFIG_IPVTAP is not set
CONFIG_VXLAN=m
CONFIG_GENEVE=y
CONFIG_BAREUDP=m
CONFIG_GTP=m
# CONFIG_AMT is not set
CONFIG_MACSEC=m
# CONFIG_NETCONSOLE is not set
# CONFIG_TUN is not set
CONFIG_TAP=m
CONFIG_TUN_VNET_CROSS_LE=y
CONFIG_VETH=y
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
CONFIG_ARCNET=m
# CONFIG_ARCNET_1201 is not set
CONFIG_ARCNET_1051=m
CONFIG_ARCNET_RAW=m
# CONFIG_ARCNET_CAP is not set
CONFIG_ARCNET_COM90xx=m
CONFIG_ARCNET_COM90xxIO=m
# CONFIG_ARCNET_RIM_I is not set
# CONFIG_ARCNET_COM20020 is not set
# CONFIG_ATM_DRIVERS is not set
# CONFIG_CAIF_DRIVERS is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_3C589=m
# CONFIG_NET_VENDOR_ACTIONS is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
CONFIG_ALTERA_TSE=y
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_NET_VENDOR_AMD=y
# CONFIG_PCMCIA_NMCLAN is not set
CONFIG_NET_XGENE=m
CONFIG_NET_XGENE_V2=y
# CONFIG_NET_VENDOR_AQUANTIA is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ASIX=y
CONFIG_NET_VENDOR_BROADCOM=y
CONFIG_B44=m
# CONFIG_BCM4908_ENET is not set
# CONFIG_BCMGENET is not set
# CONFIG_BGMAC_BCMA is not set
# CONFIG_BGMAC_PLATFORM is not set
CONFIG_SYSTEMPORT=y
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_CALXEDA_XGMAC is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_CORTINA is not set
CONFIG_NET_VENDOR_DAVICOM=y
CONFIG_DM9000=y
CONFIG_DM9000_FORCE_SIMPLE_PHY_POLL=y
CONFIG_DNET=m
# CONFIG_NET_VENDOR_ENGLEDER is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_FARADAY is not set
CONFIG_NET_VENDOR_FREESCALE=y
CONFIG_FEC=y
CONFIG_FSL_FMAN=y
CONFIG_FSL_PQ_MDIO=m
CONFIG_GIANFAR=m
CONFIG_FSL_ENETC_IERB=y
CONFIG_NET_VENDOR_FUJITSU=y
CONFIG_PCMCIA_FMVJ18X=m
CONFIG_NET_VENDOR_FUNGIBLE=y
CONFIG_NET_VENDOR_GOOGLE=y
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_WANGXUN is not set
# CONFIG_KORINA is not set
# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MEDIATEK is not set
CONFIG_NET_VENDOR_MELLANOX=y
CONFIG_MLXSW_CORE=y
# CONFIG_MLXSW_CORE_THERMAL is not set
# CONFIG_MLXSW_I2C is not set
CONFIG_MLXFW=y
CONFIG_MLXBF_GIGE=y
CONFIG_NET_VENDOR_MICREL=y
CONFIG_KS8842=y
# CONFIG_KS8851_MLL is not set
CONFIG_NET_VENDOR_MICROCHIP=y
CONFIG_NET_VENDOR_MICROSEMI=y
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_NI is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_8390 is not set
CONFIG_LPC_ENET=m
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PENSANDO=y
CONFIG_NET_VENDOR_QUALCOMM=y
CONFIG_QCOM_EMAC=m
CONFIG_RMNET=m
CONFIG_NET_VENDOR_RENESAS=y
# CONFIG_SH_ETH is not set
# CONFIG_RAVB is not set
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=y
# CONFIG_STMMAC_SELFTESTS is not set
CONFIG_STMMAC_PLATFORM=y
CONFIG_DWMAC_GENERIC=m
# CONFIG_NET_VENDOR_SUNPLUS is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
CONFIG_NET_VENDOR_VIA=y
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_XILINX is not set
CONFIG_NET_VENDOR_XIRCOM=y
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_PHYLINK=y
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
CONFIG_LED_TRIGGER_PHY=y
CONFIG_FIXED_PHY=y
# CONFIG_SFP is not set

#
# MII PHY device drivers
#
CONFIG_AMD_PHY=m
CONFIG_MESON_GXL_PHY=m
CONFIG_ADIN_PHY=m
CONFIG_ADIN1100_PHY=y
CONFIG_AQUANTIA_PHY=m
CONFIG_AX88796B_PHY=y
CONFIG_BROADCOM_PHY=m
CONFIG_BCM54140_PHY=m
CONFIG_BCM63XX_PHY=m
CONFIG_BCM7XXX_PHY=m
# CONFIG_BCM84881_PHY is not set
CONFIG_BCM87XX_PHY=m
CONFIG_BCM_NET_PHYLIB=m
CONFIG_BCM_NET_PHYPTP=m
# CONFIG_CICADA_PHY is not set
CONFIG_CORTINA_PHY=m
CONFIG_DAVICOM_PHY=m
# CONFIG_ICPLUS_PHY is not set
CONFIG_LXT_PHY=m
# CONFIG_INTEL_XWAY_PHY is not set
CONFIG_LSI_ET1011C_PHY=m
CONFIG_MARVELL_PHY=y
CONFIG_MARVELL_10G_PHY=y
CONFIG_MARVELL_88X2222_PHY=m
# CONFIG_MAXLINEAR_GPHY is not set
CONFIG_MEDIATEK_GE_PHY=m
CONFIG_MICREL_PHY=m
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
CONFIG_AT803X_PHY=m
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=m
CONFIG_RENESAS_PHY=y
# CONFIG_ROCKCHIP_PHY is not set
CONFIG_SMSC_PHY=m
CONFIG_STE10XP=y
# CONFIG_TERANETICS_PHY is not set
CONFIG_DP83822_PHY=m
# CONFIG_DP83TC811_PHY is not set
CONFIG_DP83848_PHY=m
CONFIG_DP83867_PHY=y
CONFIG_DP83869_PHY=y
# CONFIG_DP83TD510_PHY is not set
# CONFIG_VITESSE_PHY is not set
CONFIG_XILINX_GMII2RGMII=m
# CONFIG_PSE_CONTROLLER is not set
CONFIG_CAN_DEV=m
CONFIG_CAN_VCAN=m
CONFIG_CAN_VXCAN=m
# CONFIG_CAN_NETLINK is not set
CONFIG_CAN_DEBUG_DEVICES=y
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_MDIO_DEVRES=y
CONFIG_MDIO_SUN4I=y
CONFIG_MDIO_XGENE=y
CONFIG_MDIO_BITBANG=y
CONFIG_MDIO_BCM_UNIMAC=y
CONFIG_MDIO_CAVIUM=y
CONFIG_MDIO_GPIO=y
# CONFIG_MDIO_MSCC_MIIM is not set
# CONFIG_MDIO_MOXART is not set
CONFIG_MDIO_OCTEON=y

#
# MDIO Multiplexers
#

#
# PCS device drivers
#
CONFIG_PCS_XPCS=y
CONFIG_PCS_ALTERA_TSE=y
# end of PCS device drivers

CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
# CONFIG_PPP_FILTER is not set
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOATM=m
CONFIG_PPPOE=m
CONFIG_PPTP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=y
CONFIG_SLHC=y
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y

#
# Host-side USB support is needed for USB Network Adapter support
#
CONFIG_WLAN=y
# CONFIG_WLAN_VENDOR_ADMTEK is not set
CONFIG_ATH_COMMON=y
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
CONFIG_ATH9K_HW=y
CONFIG_ATH9K_COMMON=y
CONFIG_ATH9K_BTCOEX_SUPPORT=y
CONFIG_ATH9K=y
# CONFIG_ATH9K_AHB is not set
# CONFIG_ATH9K_DEBUGFS is not set
# CONFIG_ATH9K_DYNACK is not set
# CONFIG_ATH9K_CHANNEL_CONTEXT is not set
CONFIG_ATH9K_PCOEM=y
CONFIG_ATH9K_HWRNG=y
CONFIG_ATH6KL=y
CONFIG_ATH6KL_SDIO=m
CONFIG_ATH6KL_DEBUG=y
CONFIG_ATH10K=y
CONFIG_ATH10K_CE=y
CONFIG_ATH10K_SDIO=y
# CONFIG_ATH10K_SNOC is not set
# CONFIG_ATH10K_DEBUG is not set
# CONFIG_ATH10K_DEBUGFS is not set
# CONFIG_WCN36XX is not set
CONFIG_ATH11K=y
# CONFIG_ATH11K_DEBUG is not set
# CONFIG_WLAN_VENDOR_ATMEL is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
CONFIG_B43LEGACY=y
CONFIG_B43LEGACY_HWRNG=y
CONFIG_B43LEGACY_DEBUG=y
CONFIG_B43LEGACY_PIO=y
# CONFIG_B43LEGACY_DMA_AND_PIO_MODE is not set
# CONFIG_B43LEGACY_DMA_MODE is not set
CONFIG_B43LEGACY_PIO_MODE=y
CONFIG_BRCMUTIL=m
CONFIG_BRCMSMAC=m
CONFIG_BRCMFMAC=m
CONFIG_BRCMFMAC_PROTO_BCDC=y
CONFIG_BRCMFMAC_SDIO=y
CONFIG_BRCM_TRACING=y
CONFIG_BRCMDBG=y
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO_CS is not set
# CONFIG_WLAN_VENDOR_INTEL is not set
# CONFIG_WLAN_VENDOR_INTERSIL is not set
CONFIG_WLAN_VENDOR_MARVELL=y
CONFIG_LIBERTAS=y
# CONFIG_LIBERTAS_CS is not set
CONFIG_LIBERTAS_SDIO=m
# CONFIG_LIBERTAS_DEBUG is not set
# CONFIG_LIBERTAS_MESH is not set
CONFIG_LIBERTAS_THINFIRM=y
CONFIG_LIBERTAS_THINFIRM_DEBUG=y
CONFIG_MWIFIEX=m
# CONFIG_MWIFIEX_SDIO is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
# CONFIG_WLAN_VENDOR_MICROCHIP is not set
CONFIG_WLAN_VENDOR_PURELIFI=y
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
# CONFIG_WLAN_VENDOR_REALTEK is not set
CONFIG_WLAN_VENDOR_RSI=y
CONFIG_RSI_91X=y
# CONFIG_RSI_DEBUGFS is not set
CONFIG_RSI_SDIO=y
# CONFIG_RSI_COEX is not set
CONFIG_WLAN_VENDOR_SILABS=y
CONFIG_WFX=y
# CONFIG_WLAN_VENDOR_ST is not set
# CONFIG_WLAN_VENDOR_TI is not set
# CONFIG_WLAN_VENDOR_ZYDAS is not set
# CONFIG_WLAN_VENDOR_QUANTENNA is not set
# CONFIG_PCMCIA_RAYCS is not set
CONFIG_PCMCIA_WL3501=m
# CONFIG_MAC80211_HWSIM is not set
CONFIG_VIRT_WIFI=m
CONFIG_WAN=y
CONFIG_HDLC=y
CONFIG_HDLC_RAW=m
# CONFIG_HDLC_RAW_ETH is not set
CONFIG_HDLC_CISCO=m
# CONFIG_HDLC_FR is not set
# CONFIG_HDLC_PPP is not set

#
# X.25/LAPB support is disabled
#
CONFIG_IEEE802154_DRIVERS=m
CONFIG_IEEE802154_FAKELB=m
CONFIG_IEEE802154_HWSIM=m

#
# Wireless WAN
#
CONFIG_WWAN=y
CONFIG_WWAN_DEBUGFS=y
CONFIG_WWAN_HWSIM=y
CONFIG_QCOM_BAM_DMUX=y
# end of Wireless WAN

CONFIG_NETDEVSIM=m
CONFIG_NET_FAILOVER=y
CONFIG_ISDN=y
CONFIG_ISDN_CAPI=y
CONFIG_MISDN=y
# CONFIG_MISDN_DSP is not set
# CONFIG_MISDN_L1OIP is not set

#
# mISDN hardware drivers
#

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_LEDS is not set
# CONFIG_INPUT_FF_MEMLESS is not set
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_MATRIXKMAP=y

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_CYAPA=m
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_MOUSE_GPIO=m
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_SERIAL_WACOM4=m
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
CONFIG_RMI4_CORE=m
# CONFIG_RMI4_I2C is not set
# CONFIG_RMI4_SMB is not set
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=m
CONFIG_RMI4_2D_SENSOR=y
# CONFIG_RMI4_F11 is not set
CONFIG_RMI4_F12=y
# CONFIG_RMI4_F30 is not set
# CONFIG_RMI4_F34 is not set
# CONFIG_RMI4_F3A is not set
# CONFIG_RMI4_F55 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=m
CONFIG_SERIO_SERPORT=m
# CONFIG_SERIO_LIBPS2 is not set
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
CONFIG_SERIO_ARC_PS2=m
# CONFIG_SERIO_OLPC_APSP is not set
CONFIG_SERIO_SUN4I_PS2=m
CONFIG_SERIO_GPIO_PS2=m
CONFIG_USERIO=m
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_LDISC_AUTOLOAD is not set

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_AMBA_PL010=m
CONFIG_SERIAL_MESON=y
CONFIG_SERIAL_MESON_CONSOLE=y
CONFIG_SERIAL_CLPS711X=y
# CONFIG_SERIAL_CLPS711X_CONSOLE is not set
CONFIG_SERIAL_SAMSUNG=m
CONFIG_SERIAL_SAMSUNG_UARTS_4=y
CONFIG_SERIAL_SAMSUNG_UARTS=4
CONFIG_SERIAL_SAMSUNG_CONSOLE=y
CONFIG_SERIAL_TEGRA=y
CONFIG_SERIAL_TEGRA_TCU=m
CONFIG_SERIAL_IMX=y
CONFIG_SERIAL_IMX_CONSOLE=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
CONFIG_SERIAL_UARTLITE_NR_UARTS=1
CONFIG_SERIAL_SH_SCI=m
CONFIG_SERIAL_SH_SCI_NR_UARTS=2
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_MSM=m
# CONFIG_SERIAL_QCOM_GENI is not set
# CONFIG_SERIAL_VT8500 is not set
CONFIG_SERIAL_OMAP=m
CONFIG_SERIAL_LANTIQ=y
CONFIG_SERIAL_LANTIQ_CONSOLE=y
CONFIG_SERIAL_SCCNXP=y
# CONFIG_SERIAL_SCCNXP_CONSOLE is not set
CONFIG_SERIAL_SC16IS7XX=m
# CONFIG_SERIAL_SC16IS7XX_I2C is not set
# CONFIG_SERIAL_TIMBERDALE is not set
CONFIG_SERIAL_BCM63XX=y
# CONFIG_SERIAL_BCM63XX_CONSOLE is not set
CONFIG_SERIAL_ALTERA_JTAGUART=m
CONFIG_SERIAL_ALTERA_UART=y
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
# CONFIG_SERIAL_ALTERA_UART_CONSOLE is not set
CONFIG_SERIAL_MXS_AUART=m
# CONFIG_SERIAL_MPS2_UART_CONSOLE is not set
CONFIG_SERIAL_MPS2_UART=y
CONFIG_SERIAL_ARC=m
CONFIG_SERIAL_ARC_NR_PORTS=1
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
CONFIG_SERIAL_ST_ASC=y
# CONFIG_SERIAL_ST_ASC_CONSOLE is not set
CONFIG_SERIAL_STM32=m
CONFIG_SERIAL_OWL=m
CONFIG_SERIAL_RDA=y
# CONFIG_SERIAL_RDA_CONSOLE is not set
CONFIG_SERIAL_LITEUART=y
CONFIG_SERIAL_LITEUART_MAX_PORTS=1
CONFIG_SERIAL_LITEUART_CONSOLE=y
CONFIG_SERIAL_SUNPLUS=y
# CONFIG_SERIAL_SUNPLUS_CONSOLE is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_GOLDFISH_TTY=y
CONFIG_GOLDFISH_TTY_EARLY_CONSOLE=y
CONFIG_N_GSM=m
CONFIG_NULL_TTY=m
CONFIG_SERIAL_DEV_BUS=m
# CONFIG_VIRTIO_CONSOLE is not set
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_PLAT_DATA=y
CONFIG_IPMI_PANIC_EVENT=y
# CONFIG_IPMI_PANIC_STRING is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
# CONFIG_IPMI_SSIF is not set
# CONFIG_IPMI_IPMB is not set
CONFIG_IPMI_WATCHDOG=m
# CONFIG_IPMI_POWEROFF is not set
CONFIG_IPMI_KCS_BMC=y
CONFIG_ASPEED_KCS_IPMI_BMC=y
CONFIG_NPCM7XX_KCS_IPMI_BMC=m
CONFIG_IPMI_KCS_BMC_CDEV_IPMI=y
CONFIG_IPMI_KCS_BMC_SERIO=m
CONFIG_ASPEED_BT_IPMI_BMC=m
CONFIG_IPMB_DEVICE_INTERFACE=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=y
CONFIG_HW_RANDOM_BA431=y
CONFIG_HW_RANDOM_BCM2835=y
# CONFIG_HW_RANDOM_IPROC_RNG200 is not set
CONFIG_HW_RANDOM_IXP4XX=m
CONFIG_HW_RANDOM_OMAP=y
CONFIG_HW_RANDOM_OMAP3_ROM=y
CONFIG_HW_RANDOM_VIRTIO=y
CONFIG_HW_RANDOM_NOMADIK=m
CONFIG_HW_RANDOM_STM32=y
CONFIG_HW_RANDOM_POLARFIRE_SOC=m
CONFIG_HW_RANDOM_MESON=y
# CONFIG_HW_RANDOM_MTK is not set
CONFIG_HW_RANDOM_EXYNOS=m
CONFIG_HW_RANDOM_NPCM=m
CONFIG_HW_RANDOM_XIPHERA=y

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
CONFIG_CARDMAN_4000=m
# CONFIG_CARDMAN_4040 is not set
CONFIG_SCR24X=m
# CONFIG_IPWIRELESS is not set
# end of PCMCIA character devices

# CONFIG_DEVMEM is not set
CONFIG_TCG_TPM=m
# CONFIG_HW_RANDOM_TPM is not set
CONFIG_TCG_TIS_CORE=m
CONFIG_TCG_TIS_I2C=m
# CONFIG_TCG_TIS_SYNQUACER is not set
CONFIG_TCG_TIS_I2C_CR50=m
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_ATMEL=m
# CONFIG_TCG_VTPM_PROXY is not set
CONFIG_TCG_TIS_ST33ZP24=m
CONFIG_TCG_TIS_ST33ZP24_I2C=m
CONFIG_RANDOM_TRUST_CPU=y
CONFIG_RANDOM_TRUST_BOOTLOADER=y
# end of Character devices

#
# I2C support
#
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
CONFIG_I2C_MUX_LTC4306=m
CONFIG_I2C_MUX_PCA9541=m
CONFIG_I2C_MUX_PCA954x=m
# CONFIG_I2C_MUX_REG is not set
# CONFIG_I2C_MUX_MLXCPLD is not set
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=m

#
# I2C Hardware Bus support
#
# CONFIG_I2C_HIX5HD2 is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_ASPEED is not set
# CONFIG_I2C_AT91 is not set
CONFIG_I2C_AXXIA=m
CONFIG_I2C_BCM_IPROC=m
CONFIG_I2C_BCM_KONA=m
# CONFIG_I2C_BRCMSTB is not set
# CONFIG_I2C_CADENCE is not set
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DAVINCI=m
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
CONFIG_I2C_DIGICOLOR=m
CONFIG_I2C_GPIO=m
CONFIG_I2C_GPIO_FAULT_INJECTOR=y
CONFIG_I2C_HIGHLANDER=m
CONFIG_I2C_HISI=m
# CONFIG_I2C_IMG is not set
CONFIG_I2C_IMX=m
CONFIG_I2C_IMX_LPI2C=m
CONFIG_I2C_IOP3XX=m
CONFIG_I2C_JZ4780=m
CONFIG_I2C_KEMPLD=m
CONFIG_I2C_MT65XX=m
CONFIG_I2C_MT7621=m
CONFIG_I2C_MV64XXX=m
CONFIG_I2C_MXS=m
# CONFIG_I2C_NPCM is not set
CONFIG_I2C_OCORES=m
# CONFIG_I2C_OMAP is not set
CONFIG_I2C_OWL=m
CONFIG_I2C_APPLE=m
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PNX is not set
# CONFIG_I2C_PXA is not set
# CONFIG_I2C_QCOM_CCI is not set
CONFIG_I2C_QCOM_GENI=m
# CONFIG_I2C_QUP is not set
CONFIG_I2C_RIIC=m
CONFIG_I2C_RZV2M=m
# CONFIG_I2C_S3C2410 is not set
# CONFIG_I2C_SH_MOBILE is not set
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_ST is not set
# CONFIG_I2C_STM32F4 is not set
CONFIG_I2C_STM32F7=m
# CONFIG_I2C_SUN6I_P2WI is not set
# CONFIG_I2C_SYNQUACER is not set
# CONFIG_I2C_TEGRA_BPMP is not set
CONFIG_I2C_UNIPHIER=m
CONFIG_I2C_UNIPHIER_F=m
CONFIG_I2C_VERSATILE=m
# CONFIG_I2C_WMT is not set
CONFIG_I2C_XILINX=m
CONFIG_I2C_XLP9XX=m
CONFIG_I2C_RCAR=m

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_TAOS_EVM=m

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_MLXCPLD=m
CONFIG_I2C_CROS_EC_TUNNEL=m
CONFIG_I2C_VIRTIO=m
# end of I2C Hardware Bus support

# CONFIG_I2C_STUB is not set
CONFIG_I2C_SLAVE=y
CONFIG_I2C_SLAVE_EEPROM=m
CONFIG_I2C_SLAVE_TESTUNIT=m
CONFIG_I2C_DEBUG_CORE=y
# CONFIG_I2C_DEBUG_ALGO is not set
CONFIG_I2C_DEBUG_BUS=y
# end of I2C support

# CONFIG_I3C is not set
# CONFIG_SPI is not set
CONFIG_SPMI=m
CONFIG_SPMI_HISI3670=m
CONFIG_SPMI_MSM_PMIC_ARB=m
CONFIG_SPMI_MTK_PMIF=m
# CONFIG_HSI is not set
# CONFIG_PPS is not set

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_GENERIC_PINCTRL_GROUPS=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
CONFIG_PINCTRL_AMD=y
CONFIG_PINCTRL_CY8C95X0=m
# CONFIG_PINCTRL_DA9062 is not set
CONFIG_PINCTRL_MCP23S08_I2C=m
CONFIG_PINCTRL_MCP23S08=m
CONFIG_PINCTRL_MADERA=y
CONFIG_PINCTRL_CS47L85=y
CONFIG_PINCTRL_CS47L92=y

#
# Intel pinctrl drivers
#
# end of Intel pinctrl drivers

#
# MediaTek pinctrl drivers
#
CONFIG_EINT_MTK=y
# end of MediaTek pinctrl drivers

CONFIG_PINCTRL_PXA=y
# CONFIG_PINCTRL_PXA25X is not set
CONFIG_PINCTRL_PXA27X=y
CONFIG_PINCTRL_MSM=m
CONFIG_PINCTRL_SC7280_LPASS_LPI=m
CONFIG_PINCTRL_SM8250_LPASS_LPI=m
# CONFIG_PINCTRL_SM8350 is not set
CONFIG_PINCTRL_SM8450_LPASS_LPI=m
# CONFIG_PINCTRL_SC8280XP_LPASS_LPI is not set
CONFIG_PINCTRL_LPASS_LPI=y

#
# Renesas pinctrl drivers
#
# CONFIG_PINCTRL_RENESAS is not set
CONFIG_PINCTRL_SH_PFC=y
CONFIG_PINCTRL_SH_PFC_GPIO=y
CONFIG_PINCTRL_SH_FUNC_GPIO=y
# CONFIG_PINCTRL_PFC_EMEV2 is not set
# CONFIG_PINCTRL_PFC_R8A77995 is not set
# CONFIG_PINCTRL_PFC_R8A7794 is not set
CONFIG_PINCTRL_PFC_R8A77990=y
# CONFIG_PINCTRL_PFC_R8A7779 is not set
CONFIG_PINCTRL_PFC_R8A7790=y
# CONFIG_PINCTRL_PFC_R8A77950 is not set
CONFIG_PINCTRL_PFC_R8A77951=y
CONFIG_PINCTRL_PFC_R8A7778=y
# CONFIG_PINCTRL_PFC_R8A7793 is not set
CONFIG_PINCTRL_PFC_R8A7791=y
# CONFIG_PINCTRL_PFC_R8A77965 is not set
CONFIG_PINCTRL_PFC_R8A77960=y
CONFIG_PINCTRL_PFC_R8A77961=y
CONFIG_PINCTRL_PFC_R8A779F0=y
# CONFIG_PINCTRL_PFC_R8A7792 is not set
CONFIG_PINCTRL_PFC_R8A77980=y
CONFIG_PINCTRL_PFC_R8A77970=y
CONFIG_PINCTRL_PFC_R8A779A0=y
# CONFIG_PINCTRL_PFC_R8A779G0 is not set
CONFIG_PINCTRL_PFC_R8A7740=y
# CONFIG_PINCTRL_PFC_R8A73A4 is not set
# CONFIG_PINCTRL_PFC_R8A77470 is not set
# CONFIG_PINCTRL_PFC_R8A7745 is not set
# CONFIG_PINCTRL_PFC_R8A7742 is not set
CONFIG_PINCTRL_PFC_R8A7743=y
CONFIG_PINCTRL_PFC_R8A7744=y
# CONFIG_PINCTRL_PFC_R8A774C0 is not set
# CONFIG_PINCTRL_PFC_R8A774E1 is not set
# CONFIG_PINCTRL_PFC_R8A774A1 is not set
# CONFIG_PINCTRL_PFC_R8A774B1 is not set
# CONFIG_PINCTRL_PFC_SH7203 is not set
# CONFIG_PINCTRL_PFC_SH7264 is not set
CONFIG_PINCTRL_PFC_SH7269=y
CONFIG_PINCTRL_PFC_SH7720=y
CONFIG_PINCTRL_PFC_SH7722=y
CONFIG_PINCTRL_PFC_SH7734=y
# CONFIG_PINCTRL_PFC_SH7757 is not set
# CONFIG_PINCTRL_PFC_SH7785 is not set
CONFIG_PINCTRL_PFC_SH7786=y
# CONFIG_PINCTRL_PFC_SH73A0 is not set
# CONFIG_PINCTRL_PFC_SH7723 is not set
# CONFIG_PINCTRL_PFC_SH7724 is not set
# CONFIG_PINCTRL_PFC_SHX3 is not set
# end of Renesas pinctrl drivers

CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIOLIB_IRQCHIP=y
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y
CONFIG_GPIO_GENERIC=y
CONFIG_GPIO_REGMAP=m
CONFIG_GPIO_MAX730X=m

#
# Memory mapped GPIO drivers
#
CONFIG_GPIO_ATH79=y
# CONFIG_GPIO_CLPS711X is not set
# CONFIG_GPIO_DWAPB is not set
CONFIG_GPIO_GENERIC_PLATFORM=m
CONFIG_GPIO_HISI=y
# CONFIG_GPIO_IOP is not set
CONFIG_GPIO_MB86S7X=m
# CONFIG_GPIO_MPC8XXX is not set
CONFIG_GPIO_MXC=y
CONFIG_GPIO_MXS=y
CONFIG_GPIO_PXA=y
# CONFIG_GPIO_RCAR is not set
CONFIG_GPIO_ROCKCHIP=m
# CONFIG_GPIO_SIOX is not set
CONFIG_GPIO_XGENE_SB=y
CONFIG_GPIO_XLP=m
CONFIG_GPIO_AMD_FCH=y
CONFIG_GPIO_IDT3243X=y
# end of Memory mapped GPIO drivers

#
# I2C GPIO expanders
#
CONFIG_GPIO_MAX7300=m
# CONFIG_GPIO_MAX732X is not set
CONFIG_GPIO_PCA953X=m
# CONFIG_GPIO_PCA953X_IRQ is not set
CONFIG_GPIO_PCA9570=m
CONFIG_GPIO_PCF857X=m
CONFIG_GPIO_TPIC2810=m
CONFIG_GPIO_TS4900=m
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
CONFIG_GPIO_KEMPLD=y
CONFIG_GPIO_MADERA=y
CONFIG_GPIO_MAX77650=m
CONFIG_GPIO_SL28CPLD=m
# CONFIG_GPIO_TQMX86 is not set
# CONFIG_GPIO_WM8994 is not set
# end of MFD GPIO expanders

#
# Virtual GPIO drivers
#
CONFIG_GPIO_AGGREGATOR=m
CONFIG_GPIO_MOCKUP=m
# CONFIG_GPIO_VIRTIO is not set
CONFIG_GPIO_SIM=y
# end of Virtual GPIO drivers

# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_SUPPLY_DEBUG=y
# CONFIG_PDA_POWER is not set
# CONFIG_GENERIC_ADC_BATTERY is not set
# CONFIG_IP5XXX_POWER is not set
# CONFIG_TEST_POWER is not set
CONFIG_CHARGER_ADP5061=m
# CONFIG_BATTERY_ACT8945A is not set
CONFIG_BATTERY_CW2015=m
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
CONFIG_BATTERY_DS2782=m
CONFIG_BATTERY_SAMSUNG_SDI=y
# CONFIG_BATTERY_INGENIC is not set
CONFIG_BATTERY_SBS=m
CONFIG_CHARGER_SBS=m
# CONFIG_MANAGER_SBS is not set
CONFIG_BATTERY_BQ27XXX=y
CONFIG_BATTERY_BQ27XXX_I2C=m
CONFIG_BATTERY_BQ27XXX_DT_UPDATES_NVM=y
# CONFIG_CHARGER_AXP20X is not set
# CONFIG_BATTERY_AXP20X is not set
CONFIG_AXP20X_POWER=m
CONFIG_BATTERY_MAX17040=m
CONFIG_BATTERY_MAX17042=m
CONFIG_CHARGER_PCF50633=m
CONFIG_CHARGER_MAX8903=m
# CONFIG_CHARGER_LP8727 is not set
CONFIG_CHARGER_GPIO=y
CONFIG_CHARGER_MANAGER=m
# CONFIG_CHARGER_LT3651 is not set
CONFIG_CHARGER_LTC4162L=m
CONFIG_CHARGER_MAX14577=m
CONFIG_CHARGER_MAX77650=m
CONFIG_CHARGER_MAX77693=m
CONFIG_CHARGER_MAX77976=m
# CONFIG_CHARGER_MP2629 is not set
CONFIG_CHARGER_MT6360=m
# CONFIG_CHARGER_BQ2415X is not set
CONFIG_CHARGER_BQ24190=m
CONFIG_CHARGER_BQ24257=m
CONFIG_CHARGER_BQ24735=m
# CONFIG_CHARGER_BQ2515X is not set
CONFIG_CHARGER_BQ25890=m
CONFIG_CHARGER_BQ25980=m
CONFIG_CHARGER_BQ256XX=m
CONFIG_CHARGER_SMB347=m
CONFIG_BATTERY_GAUGE_LTC2941=m
CONFIG_BATTERY_GOLDFISH=m
CONFIG_BATTERY_RT5033=m
CONFIG_CHARGER_RT9455=m
CONFIG_CHARGER_CROS_PCHG=m
# CONFIG_CHARGER_SC2731 is not set
# CONFIG_FUEL_GAUGE_SC27XX is not set
CONFIG_CHARGER_BD99954=m
CONFIG_BATTERY_UG3105=m
CONFIG_HWMON=m
CONFIG_HWMON_VID=m
CONFIG_HWMON_DEBUG_CHIP=y

#
# Native drivers
#
CONFIG_SENSORS_AD7414=m
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1025 is not set
CONFIG_SENSORS_ADM1026=m
# CONFIG_SENSORS_ADM1029 is not set
CONFIG_SENSORS_ADM1031=m
# CONFIG_SENSORS_ADM1177 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7410 is not set
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
# CONFIG_SENSORS_ADT7470 is not set
CONFIG_SENSORS_ADT7475=m
CONFIG_SENSORS_AHT10=m
# CONFIG_SENSORS_AS370 is not set
CONFIG_SENSORS_ASC7621=m
CONFIG_SENSORS_AXI_FAN_CONTROL=m
# CONFIG_SENSORS_ARM_SCMI is not set
CONFIG_SENSORS_ARM_SCPI=m
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ASPEED is not set
CONFIG_SENSORS_ATXP1=m
CONFIG_SENSORS_BT1_PVT=m
# CONFIG_SENSORS_BT1_PVT_ALARMS is not set
# CONFIG_SENSORS_DRIVETEMP is not set
# CONFIG_SENSORS_DS620 is not set
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_SPARX5=m
# CONFIG_SENSORS_F71805F is not set
CONFIG_SENSORS_F71882FG=m
# CONFIG_SENSORS_F75375S is not set
CONFIG_SENSORS_MC13783_ADC=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_FTSTEUTATES=m
# CONFIG_SENSORS_GL518SM is not set
CONFIG_SENSORS_GL520SM=m
# CONFIG_SENSORS_G760A is not set
CONFIG_SENSORS_G762=m
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IBMAEM=m
# CONFIG_SENSORS_IBMPEX is not set
CONFIG_SENSORS_IIO_HWMON=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
CONFIG_SENSORS_POWR1220=m
# CONFIG_SENSORS_LAN966X is not set
CONFIG_SENSORS_LINEAGE=m
CONFIG_SENSORS_LTC2945=m
# CONFIG_SENSORS_LTC2947_I2C is not set
CONFIG_SENSORS_LTC2990=m
CONFIG_SENSORS_LTC2992=m
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
CONFIG_SENSORS_LTC4222=m
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_LTC4260=m
CONFIG_SENSORS_LTC4261=m
CONFIG_SENSORS_MAX127=m
# CONFIG_SENSORS_MAX16065 is not set
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX31760 is not set
CONFIG_SENSORS_MAX6620=m
CONFIG_SENSORS_MAX6621=m
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_MAX6697=m
CONFIG_SENSORS_MAX31790=m
CONFIG_SENSORS_MCP3021=m
CONFIG_SENSORS_TC654=m
CONFIG_SENSORS_TPS23861=m
CONFIG_SENSORS_MENF21BMC_HWMON=m
CONFIG_SENSORS_MR75203=m
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
# CONFIG_SENSORS_LM80 is not set
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
# CONFIG_SENSORS_LM87 is not set
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
# CONFIG_SENSORS_LM93 is not set
CONFIG_SENSORS_LM95234=m
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_NTC_THERMISTOR=m
CONFIG_SENSORS_NCT6683=m
CONFIG_SENSORS_NCT6775_CORE=m
CONFIG_SENSORS_NCT6775=m
CONFIG_SENSORS_NCT6775_I2C=m
CONFIG_SENSORS_NCT7802=m
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_OCC_P8_I2C is not set
CONFIG_SENSORS_PCF8591=m
# CONFIG_PMBUS is not set
CONFIG_SENSORS_PWM_FAN=m
CONFIG_SENSORS_RASPBERRYPI_HWMON=m
CONFIG_SENSORS_SL28CPLD=m
CONFIG_SENSORS_SBTSI=m
CONFIG_SENSORS_SBRMI=m
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
CONFIG_SENSORS_SHTC1=m
CONFIG_SENSORS_SY7636A=m
CONFIG_SENSORS_DME1737=m
# CONFIG_SENSORS_EMC1403 is not set
CONFIG_SENSORS_EMC2103=m
CONFIG_SENSORS_EMC2305=m
CONFIG_SENSORS_EMC6W201=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
CONFIG_SENSORS_SCH5636=m
# CONFIG_SENSORS_STTS751 is not set
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_ADC128D818=m
CONFIG_SENSORS_ADS7828=m
CONFIG_SENSORS_AMC6821=m
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
CONFIG_SENSORS_INA238=m
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
# CONFIG_SENSORS_TMP401 is not set
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_TMP464 is not set
CONFIG_SENSORS_TMP513=m
# CONFIG_SENSORS_VT1211 is not set
CONFIG_SENSORS_W83773G=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
# CONFIG_SENSORS_W83792D is not set
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
CONFIG_SENSORS_W83795_FANCTRL=y
# CONFIG_SENSORS_W83L785TS is not set
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
CONFIG_THERMAL=y
CONFIG_THERMAL_NETLINK=y
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
# CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE is not set
CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE=y
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
# CONFIG_THERMAL_GOV_USER_SPACE is not set
CONFIG_DEVFREQ_THERMAL=y
CONFIG_THERMAL_EMULATION=y
# CONFIG_K3_THERMAL is not set
# CONFIG_ROCKCHIP_THERMAL is not set
# CONFIG_RCAR_THERMAL is not set
# CONFIG_MTK_THERMAL is not set

#
# Intel thermal drivers
#

#
# ACPI INT340X thermal drivers
#
# end of ACPI INT340X thermal drivers
# end of Intel thermal drivers

#
# Broadcom thermal drivers
#
# CONFIG_BRCMSTB_THERMAL is not set
CONFIG_BCM_NS_THERMAL=m
CONFIG_BCM_SR_THERMAL=m
# end of Broadcom thermal drivers

#
# Texas Instruments thermal drivers
#
CONFIG_TI_SOC_THERMAL=m
# CONFIG_TI_THERMAL is not set
CONFIG_OMAP3_THERMAL=y
CONFIG_OMAP4_THERMAL=y
CONFIG_OMAP5_THERMAL=y
# CONFIG_DRA752_THERMAL is not set
# end of Texas Instruments thermal drivers

#
# Samsung thermal drivers
#
# end of Samsung thermal drivers

#
# NVIDIA Tegra thermal drivers
#
CONFIG_TEGRA_SOCTHERM=y
CONFIG_TEGRA_BPMP_THERMAL=m
CONFIG_TEGRA30_TSENSOR=y
# end of NVIDIA Tegra thermal drivers

CONFIG_GENERIC_ADC_THERMAL=m

#
# Qualcomm thermal drivers
#
# CONFIG_QCOM_TSENS is not set
# end of Qualcomm thermal drivers

CONFIG_SPRD_THERMAL=m
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_SEL=m
CONFIG_WATCHDOG_PRETIMEOUT_GOV_NOOP=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV_PANIC=y
# CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP is not set
CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC=y

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
CONFIG_SOFT_WATCHDOG_PRETIMEOUT=y
CONFIG_DA9052_WATCHDOG=y
CONFIG_DA9055_WATCHDOG=m
CONFIG_DA9063_WATCHDOG=m
CONFIG_DA9062_WATCHDOG=m
CONFIG_MENF21BMC_WATCHDOG=m
# CONFIG_XILINX_WATCHDOG is not set
CONFIG_ZIIRAVE_WATCHDOG=m
CONFIG_RAVE_SP_WATCHDOG=m
# CONFIG_SL28CPLD_WATCHDOG is not set
CONFIG_ARMADA_37XX_WATCHDOG=y
# CONFIG_AT91RM9200_WATCHDOG is not set
CONFIG_AT91SAM9X_WATCHDOG=m
# CONFIG_SAMA5D4_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
CONFIG_FTWDT010_WATCHDOG=m
CONFIG_S3C2410_WATCHDOG=y
CONFIG_DW_WATCHDOG=y
CONFIG_EP93XX_WATCHDOG=m
CONFIG_OMAP_WATCHDOG=y
CONFIG_PNX4008_WATCHDOG=m
# CONFIG_DAVINCI_WATCHDOG is not set
# CONFIG_K3_RTI_WATCHDOG is not set
CONFIG_RN5T618_WATCHDOG=y
CONFIG_SUNXI_WATCHDOG=y
CONFIG_NPCM7XX_WATCHDOG=y
# CONFIG_STMP3XXX_RTC_WATCHDOG is not set
CONFIG_TS72XX_WATCHDOG=y
CONFIG_MAX63XX_WATCHDOG=y
CONFIG_MAX77620_WATCHDOG=y
CONFIG_IMX2_WDT=m
# CONFIG_IMX7ULP_WDT is not set
CONFIG_RETU_WATCHDOG=m
# CONFIG_MOXART_WDT is not set
# CONFIG_TEGRA_WATCHDOG is not set
CONFIG_QCOM_WDT=m
# CONFIG_MESON_GXBB_WATCHDOG is not set
CONFIG_MESON_WATCHDOG=m
CONFIG_MEDIATEK_WATCHDOG=y
# CONFIG_DIGICOLOR_WATCHDOG is not set
CONFIG_LPC18XX_WATCHDOG=m
# CONFIG_RENESAS_WDT is not set
CONFIG_RENESAS_RZAWDT=y
# CONFIG_RENESAS_RZN1WDT is not set
CONFIG_RENESAS_RZG2LWDT=y
# CONFIG_ASPEED_WATCHDOG is not set
# CONFIG_SPRD_WATCHDOG is not set
CONFIG_VISCONTI_WATCHDOG=m
CONFIG_MSC313E_WATCHDOG=y
CONFIG_APPLE_WATCHDOG=m
# CONFIG_SUNPLUS_WATCHDOG is not set
CONFIG_SC520_WDT=y
CONFIG_KEMPLD_WDT=m
CONFIG_BCM47XX_WDT=y
CONFIG_BCM_KONA_WDT=m
# CONFIG_BCM_KONA_WDT_DEBUG is not set
CONFIG_BCM7038_WDT=m
CONFIG_IMGPDC_WDT=y
CONFIG_MPC5200_WDT=y
CONFIG_MEN_A21_WDT=y
CONFIG_UML_WATCHDOG=m
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=y
CONFIG_SSB_SPROM=y
CONFIG_SSB_SDIOHOST_POSSIBLE=y
CONFIG_SSB_SDIOHOST=y
CONFIG_SSB_HOST_SOC=y
CONFIG_SSB_DRIVER_GPIO=y
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=m
CONFIG_BCMA_HOST_SOC=y
CONFIG_BCMA_DRIVER_MIPS=y
CONFIG_BCMA_PFLASH=y
CONFIG_BCMA_SFLASH=y
CONFIG_BCMA_NFLASH=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
# CONFIG_BCMA_DRIVER_GPIO is not set
CONFIG_BCMA_DEBUG=y

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_SUN4I_GPADC is not set
CONFIG_MFD_AT91_USART=m
CONFIG_MFD_BCM590XX=m
# CONFIG_MFD_BD9571MWV is not set
CONFIG_MFD_AXP20X=m
CONFIG_MFD_AXP20X_I2C=m
CONFIG_MFD_CROS_EC_DEV=y
CONFIG_MFD_MADERA=y
# CONFIG_MFD_MADERA_I2C is not set
# CONFIG_MFD_CS47L15 is not set
# CONFIG_MFD_CS47L35 is not set
CONFIG_MFD_CS47L85=y
# CONFIG_MFD_CS47L90 is not set
CONFIG_MFD_CS47L92=y
# CONFIG_MFD_ASIC3 is not set
CONFIG_MFD_DA9062=m
CONFIG_MFD_DA9063=m
# CONFIG_MFD_DA9150 is not set
CONFIG_MFD_ENE_KB3930=m
CONFIG_MFD_EXYNOS_LPASS=m
CONFIG_MFD_MC13XXX=m
CONFIG_MFD_MC13XXX_I2C=m
CONFIG_MFD_MP2629=m
# CONFIG_MFD_MXS_LRADC is not set
# CONFIG_MFD_MX25_TSADC is not set
CONFIG_HTC_PASIC3=m
CONFIG_MFD_IQS62X=m
CONFIG_MFD_KEMPLD=y
CONFIG_MFD_88PM800=m
CONFIG_MFD_88PM805=m
CONFIG_MFD_MAX14577=m
CONFIG_MFD_MAX77650=m
CONFIG_MFD_MAX77686=m
CONFIG_MFD_MAX77693=m
# CONFIG_MFD_MAX77714 is not set
# CONFIG_MFD_MAX8907 is not set
CONFIG_MFD_MT6360=m
# CONFIG_MFD_MT6370 is not set
# CONFIG_MFD_MT6397 is not set
CONFIG_MFD_MENF21BMC=m
CONFIG_MFD_NTXEC=m
CONFIG_MFD_RETU=m
CONFIG_MFD_PCF50633=m
# CONFIG_PCF50633_ADC is not set
CONFIG_PCF50633_GPIO=m
CONFIG_MFD_PM8XXX=y
CONFIG_MFD_SY7636A=m
CONFIG_MFD_RT4831=m
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RT5120 is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SIMPLE_MFD_I2C=m
CONFIG_MFD_SL28CPLD=m
CONFIG_MFD_SM501=y
# CONFIG_MFD_SM501_GPIO is not set
CONFIG_MFD_SKY81452=m
CONFIG_ABX500_CORE=y
# CONFIG_MFD_SUN6I_PRCM is not set
CONFIG_MFD_SYSCON=y
CONFIG_MFD_TI_AM335X_TSCADC=m
# CONFIG_MFD_LP3943 is not set
CONFIG_MFD_TI_LMU=m
CONFIG_TPS6105X=m
CONFIG_TPS65010=m
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS65912_I2C is not set
CONFIG_MFD_WL1273_CORE=m
CONFIG_MFD_LM3533=m
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
CONFIG_MFD_WM8994=m
CONFIG_MFD_STW481X=m
CONFIG_MFD_STM32_LPTIMER=y
CONFIG_MFD_STM32_TIMERS=m
# CONFIG_MFD_STMFX is not set
# CONFIG_MFD_ATC260X_I2C is not set
CONFIG_MFD_KHADAS_MCU=m
# CONFIG_MFD_ACER_A500_EC is not set
CONFIG_RAVE_SP_CORE=m
# end of Multifunction device drivers

CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=y
CONFIG_REGULATOR_88PG86X=m
# CONFIG_REGULATOR_88PM800 is not set
CONFIG_REGULATOR_ACT8865=m
CONFIG_REGULATOR_AD5398=m
CONFIG_REGULATOR_ANATOP=m
CONFIG_REGULATOR_AXP20X=m
CONFIG_REGULATOR_BCM590XX=m
CONFIG_REGULATOR_DA9062=m
# CONFIG_REGULATOR_DA9210 is not set
CONFIG_REGULATOR_DA9211=m
CONFIG_REGULATOR_FAN53555=m
CONFIG_REGULATOR_FAN53880=m
CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_ISL9305=m
CONFIG_REGULATOR_ISL6271A=m
CONFIG_REGULATOR_LM363X=m
CONFIG_REGULATOR_LP3971=m
CONFIG_REGULATOR_LP3972=m
CONFIG_REGULATOR_LP872X=m
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
CONFIG_REGULATOR_MAX14577=m
CONFIG_REGULATOR_MAX1586=m
# CONFIG_REGULATOR_MAX77620 is not set
# CONFIG_REGULATOR_MAX77650 is not set
# CONFIG_REGULATOR_MAX8649 is not set
CONFIG_REGULATOR_MAX8660=m
CONFIG_REGULATOR_MAX8893=m
CONFIG_REGULATOR_MAX8907=y
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX20086 is not set
# CONFIG_REGULATOR_MAX77686 is not set
# CONFIG_REGULATOR_MAX77693 is not set
CONFIG_REGULATOR_MAX77802=m
CONFIG_REGULATOR_MAX77826=m
CONFIG_REGULATOR_MC13XXX_CORE=m
CONFIG_REGULATOR_MC13783=m
CONFIG_REGULATOR_MC13892=m
CONFIG_REGULATOR_MP8859=m
# CONFIG_REGULATOR_MP886X is not set
CONFIG_REGULATOR_MT6311=m
CONFIG_REGULATOR_MT6315=m
CONFIG_REGULATOR_MT6360=m
CONFIG_REGULATOR_PBIAS=m
# CONFIG_REGULATOR_PCA9450 is not set
CONFIG_REGULATOR_PCF50633=m
# CONFIG_REGULATOR_PV88060 is not set
CONFIG_REGULATOR_PV88080=m
CONFIG_REGULATOR_PV88090=m
CONFIG_REGULATOR_PWM=y
CONFIG_REGULATOR_QCOM_RPMH=m
CONFIG_REGULATOR_QCOM_SPMI=m
# CONFIG_REGULATOR_QCOM_USB_VBUS is not set
# CONFIG_REGULATOR_RT4801 is not set
# CONFIG_REGULATOR_RT4831 is not set
CONFIG_REGULATOR_RT5190A=m
CONFIG_REGULATOR_RT5759=m
# CONFIG_REGULATOR_RT6160 is not set
CONFIG_REGULATOR_RT6245=m
CONFIG_REGULATOR_RTQ2134=m
# CONFIG_REGULATOR_RTMV20 is not set
CONFIG_REGULATOR_RTQ6752=m
CONFIG_REGULATOR_S2MPA01=m
CONFIG_REGULATOR_S2MPS11=m
CONFIG_REGULATOR_S5M8767=m
# CONFIG_REGULATOR_SC2731 is not set
CONFIG_REGULATOR_SKY81452=m
# CONFIG_REGULATOR_SLG51000 is not set
# CONFIG_REGULATOR_STM32_BOOSTER is not set
CONFIG_REGULATOR_STM32_VREFBUF=y
# CONFIG_REGULATOR_STM32_PWR is not set
# CONFIG_REGULATOR_TI_ABB is not set
CONFIG_REGULATOR_STW481X_VMMC=y
CONFIG_REGULATOR_SY7636A=m
CONFIG_REGULATOR_SY8106A=m
CONFIG_REGULATOR_SY8824X=m
CONFIG_REGULATOR_SY8827N=m
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS6105X is not set
CONFIG_REGULATOR_TPS62360=m
CONFIG_REGULATOR_TPS65023=m
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_REGULATOR_TPS65132 is not set
# CONFIG_REGULATOR_TPS68470 is not set
CONFIG_REGULATOR_WM8994=m
# CONFIG_REGULATOR_QCOM_LABIBB is not set
# CONFIG_RC_CORE is not set
CONFIG_CEC_CORE=m

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_APERTURE_HELPERS=y
# CONFIG_IMX_IPUV3_CORE is not set
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_DISPLAY_HELPER=m
CONFIG_DRM_DISPLAY_DP_HELPER=y
CONFIG_DRM_DP_AUX_CHARDEV=y
CONFIG_DRM_DP_CEC=y
CONFIG_DRM_GEM_DMA_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=m
CONFIG_DRM_SCHED=m

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set
# end of I2C encoder or helper chips

#
# ARM devices
#
# end of ARM devices

CONFIG_DRM_KMB_DISPLAY=m
# CONFIG_DRM_VGEM is not set
CONFIG_DRM_VKMS=m
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m
# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
CONFIG_DRM_ANALOGIX_ANX78XX=m
CONFIG_DRM_ANALOGIX_DP=m
# end of Display Interface Bridges

CONFIG_DRM_ETNAVIV=m
CONFIG_DRM_ETNAVIV_THERMAL=y
CONFIG_DRM_LOGICVC=m
# CONFIG_DRM_SIMPLEDRM is not set
CONFIG_DRM_SSD130X=m
# CONFIG_DRM_SSD130X_I2C is not set
CONFIG_DRM_LEGACY=y
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=m
CONFIG_DRM_NOMODESET=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
CONFIG_FB_FOREIGN_ENDIAN=y
# CONFIG_FB_BOTH_ENDIAN is not set
# CONFIG_FB_BIG_ENDIAN is not set
CONFIG_FB_LITTLE_ENDIAN=y
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_BACKLIGHT=m
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
CONFIG_FB_CLPS711X=y
CONFIG_FB_ARC=y
# CONFIG_FB_CONTROL is not set
# CONFIG_FB_UVESA is not set
# CONFIG_FB_GBE is not set
# CONFIG_FB_PVR2 is not set
CONFIG_FB_OPENCORES=m
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_WM8505 is not set
# CONFIG_FB_W100 is not set
# CONFIG_FB_TMIO is not set
# CONFIG_FB_SM501 is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_GOLDFISH is not set
CONFIG_FB_VIRTUAL=m
CONFIG_FB_METRONOME=m
CONFIG_FB_BROADSHEET=y
CONFIG_FB_SIMPLE=m
CONFIG_FB_SSD1307=m
CONFIG_MMP_DISP=y
CONFIG_MMP_FB=y
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
CONFIG_LCD_CLASS_DEVICE=y
# CONFIG_LCD_PLATFORM is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_KTD253 is not set
CONFIG_BACKLIGHT_LM3533=m
# CONFIG_BACKLIGHT_OMAP1 is not set
CONFIG_BACKLIGHT_PWM=m
# CONFIG_BACKLIGHT_QCOM_WLED is not set
CONFIG_BACKLIGHT_RT4831=m
# CONFIG_BACKLIGHT_ADP8860 is not set
CONFIG_BACKLIGHT_ADP8870=m
CONFIG_BACKLIGHT_PCF50633=m
CONFIG_BACKLIGHT_LM3630A=m
CONFIG_BACKLIGHT_LM3639=m
CONFIG_BACKLIGHT_LP855X=m
CONFIG_BACKLIGHT_SKY81452=m
# CONFIG_BACKLIGHT_GPIO is not set
CONFIG_BACKLIGHT_LV5207LP=m
# CONFIG_BACKLIGHT_BD6107 is not set
CONFIG_BACKLIGHT_ARCXCNN=m
# CONFIG_BACKLIGHT_RAVE_SP is not set
# end of Backlight & LCD device support

CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y

#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y
# end of Console display driver support

CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
# end of Graphics support

CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_HWDEP=m
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_PROC_FS=y
# CONFIG_SND_VERBOSE_PROCFS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
CONFIG_SND_CTL_FAST_LOOKUP=y
CONFIG_SND_DEBUG=y
# CONFIG_SND_DEBUG_VERBOSE is not set
# CONFIG_SND_CTL_INPUT_VALIDATION is not set
CONFIG_SND_CTL_DEBUG=y
CONFIG_SND_JACK_INJECTION_DEBUG=y
# CONFIG_SND_SEQUENCER is not set
CONFIG_SND_VX_LIB=m
# CONFIG_SND_DRIVERS is not set

#
# HD-Audio
#
# end of HD-Audio

CONFIG_SND_HDA_PREALLOC_SIZE=64
# CONFIG_SND_FIREWIRE is not set
CONFIG_SND_PCMCIA=y
CONFIG_SND_VXPOCKET=m
# CONFIG_SND_PDAUDIOCF is not set
# CONFIG_SND_SOC is not set
CONFIG_SND_VIRTIO=y

#
# HID support
#
# CONFIG_HID is not set

#
# I2C HID support
#
# end of I2C HID support
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_SDIO_UART=y
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_OF_ESDHC=m
CONFIG_MMC_SDHCI_OF_SPARX5=y
CONFIG_MMC_SDHCI_CNS3XXX=m
CONFIG_MMC_SDHCI_DOVE=y
# CONFIG_MMC_SDHCI_TEGRA is not set
# CONFIG_MMC_SDHCI_S3C is not set
CONFIG_MMC_SDHCI_BCM_KONA=m
CONFIG_MMC_MOXART=y
CONFIG_MMC_SDHCI_ST=y
CONFIG_MMC_OMAP_HS=m
CONFIG_MMC_SDHCI_MSM=m
CONFIG_MMC_DAVINCI=y
CONFIG_MMC_S3C=y
# CONFIG_MMC_S3C_HW_SDIO_IRQ is not set
CONFIG_MMC_S3C_PIO=y
# CONFIG_MMC_S3C_DMA is not set
CONFIG_MMC_SDHCI_SPRD=m
CONFIG_MMC_TMIO_CORE=m
# CONFIG_MMC_TMIO is not set
CONFIG_MMC_SDHI=m
CONFIG_MMC_SDHI_SYS_DMAC=m
CONFIG_MMC_SDHI_INTERNAL_DMAC=m
CONFIG_MMC_DW=m
CONFIG_MMC_DW_PLTFM=m
CONFIG_MMC_DW_BLUEFIELD=m
CONFIG_MMC_DW_EXYNOS=m
CONFIG_MMC_DW_HI3798CV200=m
CONFIG_MMC_DW_K3=m
CONFIG_MMC_SH_MMCIF=m
CONFIG_MMC_USDHI6ROL0=y
CONFIG_MMC_CQHCI=m
CONFIG_MMC_HSQ=m
# CONFIG_MMC_BCM2835 is not set
CONFIG_MMC_SDHCI_XENON=y
# CONFIG_MMC_OWL is not set
CONFIG_MMC_LITEX=m
CONFIG_SCSI_UFSHCD=m
# CONFIG_SCSI_UFS_BSG is not set
CONFIG_SCSI_UFS_HPB=y
CONFIG_SCSI_UFS_HWMON=y
CONFIG_SCSI_UFSHCD_PLATFORM=m
# CONFIG_SCSI_UFS_CDNS_PLATFORM is not set
CONFIG_SCSI_UFS_DWC_TC_PLATFORM=m
CONFIG_SCSI_UFS_HISI=m
# CONFIG_SCSI_UFS_RENESAS is not set
CONFIG_SCSI_UFS_EXYNOS=m
CONFIG_MEMSTICK=y
# CONFIG_MEMSTICK_DEBUG is not set

#
# MemoryStick drivers
#
CONFIG_MEMSTICK_UNSAFE_RESUME=y
CONFIG_MSPRO_BLOCK=m
CONFIG_MS_BLOCK=y

#
# MemoryStick Host Controller Drivers
#
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=m
CONFIG_LEDS_CLASS_FLASH=m
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
CONFIG_LEDS_BRIGHTNESS_HW_CHANGED=y

#
# LED drivers
#
CONFIG_LEDS_ARIEL=m
# CONFIG_LEDS_LM3530 is not set
CONFIG_LEDS_LM3532=m
CONFIG_LEDS_LM3533=m
CONFIG_LEDS_LM3642=m
# CONFIG_LEDS_S3C24XX is not set
# CONFIG_LEDS_COBALT_QUBE is not set
CONFIG_LEDS_PCA9532=m
# CONFIG_LEDS_PCA9532_GPIO is not set
# CONFIG_LEDS_GPIO is not set
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_PCA955X is not set
CONFIG_LEDS_PCA963X=m
CONFIG_LEDS_PWM=m
# CONFIG_LEDS_REGULATOR is not set
CONFIG_LEDS_BD2802=m
CONFIG_LEDS_LT3593=m
# CONFIG_LEDS_MC13783 is not set
# CONFIG_LEDS_NS2 is not set
CONFIG_LEDS_TCA6507=m
CONFIG_LEDS_TLC591XX=m
CONFIG_LEDS_MAX77650=m
CONFIG_LEDS_LM355x=m
CONFIG_LEDS_OT200=m
CONFIG_LEDS_MENF21BMC=m
CONFIG_LEDS_IS31FL319X=m

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
CONFIG_LEDS_PM8058=m
# CONFIG_LEDS_MLXREG is not set
CONFIG_LEDS_USER=m
CONFIG_LEDS_TI_LMU_COMMON=m
CONFIG_LEDS_LM36274=m
CONFIG_LEDS_TPS6105X=m
# CONFIG_LEDS_IP30 is not set

#
# Flash and Torch LED drivers
#
CONFIG_LEDS_AS3645A=m
CONFIG_LEDS_LM3601X=m
CONFIG_LEDS_RT8515=m
CONFIG_LEDS_SGM3140=m

#
# RGB LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_DISK is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
CONFIG_LEDS_TRIGGER_BACKLIGHT=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_LEDS_TRIGGER_ACTIVITY=m
CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=y
CONFIG_LEDS_TRIGGER_CAMERA=y
# CONFIG_LEDS_TRIGGER_PANIC is not set
CONFIG_LEDS_TRIGGER_NETDEV=y
CONFIG_LEDS_TRIGGER_PATTERN=m
# CONFIG_LEDS_TRIGGER_AUDIO is not set
# CONFIG_LEDS_TRIGGER_TTY is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
# CONFIG_INFINIBAND_ON_DEMAND_PAGING is not set
# CONFIG_INFINIBAND_ADDR_TRANS is not set
CONFIG_INFINIBAND_VIRT_DMA=y
CONFIG_RDMA_SIW=m
CONFIG_INFINIBAND_IPOIB=m
# CONFIG_INFINIBAND_IPOIB_CM is not set
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
CONFIG_RTC_DEBUG=y
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_PROC is not set
# CONFIG_RTC_INTF_DEV is not set
CONFIG_RTC_DRV_TEST=y

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_88PM80X=m
CONFIG_RTC_DRV_ABB5ZES3=m
CONFIG_RTC_DRV_ABEOZ9=m
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_BRCMSTB=m
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1307_CENTURY=y
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_MAX8907=m
CONFIG_RTC_DRV_MAX77686=m
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
CONFIG_RTC_DRV_ISL12022=m
CONFIG_RTC_DRV_ISL12026=m
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8523=m
CONFIG_RTC_DRV_PCF85063=m
# CONFIG_RTC_DRV_PCF85363 is not set
CONFIG_RTC_DRV_PCF8563=m
# CONFIG_RTC_DRV_PCF8583 is not set
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_BQ32K=m
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
CONFIG_RTC_DRV_RX8010=m
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
CONFIG_RTC_DRV_EM3027=m
CONFIG_RTC_DRV_RV3028=m
# CONFIG_RTC_DRV_RV3032 is not set
CONFIG_RTC_DRV_RV8803=m
CONFIG_RTC_DRV_S5M=m
CONFIG_RTC_DRV_SD3078=m

#
# SPI RTC drivers
#
CONFIG_RTC_I2C_AND_SPI=m

#
# SPI and I2C RTC drivers
#
CONFIG_RTC_DRV_DS3232=m
CONFIG_RTC_DRV_DS3232_HWMON=y
# CONFIG_RTC_DRV_PCF2127 is not set
CONFIG_RTC_DRV_RV3029C2=m
# CONFIG_RTC_DRV_RV3029_HWMON is not set
CONFIG_RTC_DRV_RX6110=m

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_DS1286=y
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
CONFIG_RTC_DRV_DS1685_FAMILY=m
# CONFIG_RTC_DRV_DS1685 is not set
CONFIG_RTC_DRV_DS1689=y
# CONFIG_RTC_DRV_DS17285 is not set
# CONFIG_RTC_DRV_DS17485 is not set
# CONFIG_RTC_DRV_DS17885 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
CONFIG_RTC_DRV_DA9063=m
CONFIG_RTC_DRV_STK17TA8=y
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_M48T35=m
# CONFIG_RTC_DRV_M48T59 is not set
CONFIG_RTC_DRV_MSM6242=y
CONFIG_RTC_DRV_BQ4802=y
# CONFIG_RTC_DRV_RP5C01 is not set
CONFIG_RTC_DRV_V3020=m
CONFIG_RTC_DRV_GAMECUBE=m
CONFIG_RTC_DRV_SC27XX=m
CONFIG_RTC_DRV_SPEAR=y
CONFIG_RTC_DRV_PCF50633=m
CONFIG_RTC_DRV_CROS_EC=y
CONFIG_RTC_DRV_NTXEC=m

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_ASM9260=y
# CONFIG_RTC_DRV_DAVINCI is not set
CONFIG_RTC_DRV_DIGICOLOR=m
CONFIG_RTC_DRV_FSL_FTM_ALARM=m
# CONFIG_RTC_DRV_MESON is not set
# CONFIG_RTC_DRV_MESON_VRTC is not set
CONFIG_RTC_DRV_S3C=m
CONFIG_RTC_DRV_EP93XX=m
CONFIG_RTC_DRV_GENERIC=y
# CONFIG_RTC_DRV_VT8500 is not set
CONFIG_RTC_DRV_SUNXI=y
# CONFIG_RTC_DRV_MV is not set
# CONFIG_RTC_DRV_FTRTC010 is not set
CONFIG_RTC_DRV_STMP=y
# CONFIG_RTC_DRV_MC13XXX is not set
CONFIG_RTC_DRV_LPC32XX=m
CONFIG_RTC_DRV_PM8XXX=y
# CONFIG_RTC_DRV_TEGRA is not set
# CONFIG_RTC_DRV_MOXART is not set
CONFIG_RTC_DRV_MT2712=m
CONFIG_RTC_DRV_MT6397=m
CONFIG_RTC_DRV_MT7622=m
CONFIG_RTC_DRV_XGENE=m
CONFIG_RTC_DRV_STM32=y
CONFIG_RTC_DRV_RTD119X=y
CONFIG_RTC_DRV_TI_K3=y

#
# HID Sensor RTC drivers
#
CONFIG_RTC_DRV_GOLDFISH=y
# CONFIG_RTC_DRV_MSC313 is not set
CONFIG_DMADEVICES=y
CONFIG_DMADEVICES_DEBUG=y
# CONFIG_DMADEVICES_VDEBUG is not set

#
# DMA Devices
#
CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH=y
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_ALTERA_MSGDMA=m
# CONFIG_APPLE_ADMAC is not set
# CONFIG_AXI_DMAC is not set
# CONFIG_DMA_JZ4780 is not set
CONFIG_DMA_SA11X0=y
# CONFIG_DMA_SUN6I is not set
# CONFIG_EP93XX_DMA is not set
CONFIG_IMG_MDC_DMA=y
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_INTEL_IOP_ADMA is not set
# CONFIG_K3_DMA is not set
# CONFIG_MCF_EDMA is not set
CONFIG_MMP_PDMA=y
# CONFIG_MMP_TDMA is not set
CONFIG_MV_XOR=y
CONFIG_MXS_DMA=y
CONFIG_NBPFAXI_DMA=y
# CONFIG_STM32_DMA is not set
CONFIG_STM32_DMAMUX=y
# CONFIG_SPRD_DMA is not set
# CONFIG_S3C24XX_DMAC is not set
# CONFIG_TEGRA20_APB_DMA is not set
# CONFIG_TEGRA210_ADMA is not set
# CONFIG_TIMB_DMA is not set
CONFIG_XGENE_DMA=y
CONFIG_XILINX_ZYNQMP_DMA=y
CONFIG_MTK_HSDMA=y
CONFIG_MTK_CQDMA=m
CONFIG_QCOM_ADM=m
CONFIG_QCOM_HIDMA_MGMT=m
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=y
CONFIG_DW_DMAC=y
# CONFIG_RZN1_DMAMUX is not set
CONFIG_SF_PDMA=m
CONFIG_RENESAS_DMA=y
CONFIG_SH_DMAE_BASE=y
CONFIG_SH_DMAE=y
CONFIG_RCAR_DMAC=m
CONFIG_RENESAS_USB_DMAC=m
# CONFIG_RZ_DMAC is not set
CONFIG_TI_EDMA=y
CONFIG_DMA_OMAP=m
CONFIG_TI_DMA_CROSSBAR=y
CONFIG_INTEL_LDMA=y

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
CONFIG_DMATEST=y
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
CONFIG_UDMABUF=y
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
CONFIG_DMABUF_SELFTESTS=y
CONFIG_DMABUF_HEAPS=y
# CONFIG_DMABUF_SYSFS_STATS is not set
CONFIG_DMABUF_HEAPS_SYSTEM=y
# end of DMABUF options

CONFIG_AUXDISPLAY=y
CONFIG_CHARLCD=m
CONFIG_LINEDISP=m
CONFIG_HD44780_COMMON=m
CONFIG_HD44780=m
# CONFIG_IMG_ASCII_LCD is not set
CONFIG_HT16K33=m
CONFIG_LCD2S=m
CONFIG_PANEL_CHANGE_MESSAGE=y
CONFIG_PANEL_BOOT_MESSAGE=""
# CONFIG_CHARLCD_BL_OFF is not set
CONFIG_CHARLCD_BL_ON=y
# CONFIG_CHARLCD_BL_FLASH is not set
# CONFIG_UIO is not set
CONFIG_VFIO=y
CONFIG_VFIO_VIRQFD=y
# CONFIG_VFIO_NOIOMMU is not set
CONFIG_VFIO_PLATFORM=y
CONFIG_VFIO_AMBA=m
CONFIG_VFIO_PLATFORM_CALXEDAXGMAC_RESET=y
CONFIG_VFIO_PLATFORM_AMDXGBE_RESET=m
# CONFIG_VFIO_PLATFORM_BCMFLEXRM_RESET is not set
CONFIG_VFIO_MDEV=y
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_VDPA=y
CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_INPUT=m
# CONFIG_VIRTIO_MMIO is not set
CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
CONFIG_VDPA=y
CONFIG_VDPA_USER=m
CONFIG_VHOST_IOTLB=m
# CONFIG_VHOST_MENU is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

CONFIG_GREYBUS=m
CONFIG_COMEDI=y
# CONFIG_COMEDI_DEBUG is not set
CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB=2048
CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB=20480
# CONFIG_COMEDI_MISC_DRIVERS is not set
CONFIG_COMEDI_ISA_DRIVERS=y
# CONFIG_COMEDI_PCL711 is not set
CONFIG_COMEDI_PCL724=m
CONFIG_COMEDI_PCL726=m
CONFIG_COMEDI_PCL730=m
CONFIG_COMEDI_PCL812=y
CONFIG_COMEDI_PCL816=y
# CONFIG_COMEDI_PCL818 is not set
CONFIG_COMEDI_PCM3724=m
CONFIG_COMEDI_AMPLC_DIO200_ISA=y
CONFIG_COMEDI_AMPLC_PC236_ISA=m
CONFIG_COMEDI_AMPLC_PC263_ISA=y
CONFIG_COMEDI_RTI800=y
CONFIG_COMEDI_RTI802=y
CONFIG_COMEDI_DAC02=y
# CONFIG_COMEDI_DAS16M1 is not set
CONFIG_COMEDI_DAS08_ISA=y
# CONFIG_COMEDI_DAS16 is not set
# CONFIG_COMEDI_DAS800 is not set
# CONFIG_COMEDI_DAS1800 is not set
# CONFIG_COMEDI_DAS6402 is not set
CONFIG_COMEDI_DT2801=y
CONFIG_COMEDI_DT2811=y
CONFIG_COMEDI_DT2814=y
# CONFIG_COMEDI_DT2815 is not set
CONFIG_COMEDI_DT2817=y
CONFIG_COMEDI_DT282X=m
CONFIG_COMEDI_DMM32AT=m
CONFIG_COMEDI_FL512=y
CONFIG_COMEDI_AIO_AIO12_8=m
# CONFIG_COMEDI_AIO_IIRO_16 is not set
CONFIG_COMEDI_II_PCI20KC=y
CONFIG_COMEDI_C6XDIGIO=y
# CONFIG_COMEDI_MPC624 is not set
CONFIG_COMEDI_ADQ12B=m
CONFIG_COMEDI_NI_AT_A2150=y
CONFIG_COMEDI_NI_AT_AO=m
CONFIG_COMEDI_NI_ATMIO=y
CONFIG_COMEDI_NI_ATMIO16D=m
# CONFIG_COMEDI_NI_LABPC_ISA is not set
# CONFIG_COMEDI_PCMAD is not set
CONFIG_COMEDI_PCMDA12=m
# CONFIG_COMEDI_PCMMIO is not set
CONFIG_COMEDI_PCMUIO=m
CONFIG_COMEDI_MULTIQ3=m
# CONFIG_COMEDI_S526 is not set
CONFIG_COMEDI_PCMCIA_DRIVERS=m
# CONFIG_COMEDI_CB_DAS16_CS is not set
# CONFIG_COMEDI_DAS08_CS is not set
CONFIG_COMEDI_NI_DAQ_700_CS=m
CONFIG_COMEDI_NI_DAQ_DIO24_CS=m
CONFIG_COMEDI_NI_LABPC_CS=m
CONFIG_COMEDI_NI_MIO_CS=m
CONFIG_COMEDI_QUATECH_DAQP_CS=m
CONFIG_COMEDI_8254=y
CONFIG_COMEDI_8255=y
# CONFIG_COMEDI_8255_SA is not set
CONFIG_COMEDI_KCOMEDILIB=y
CONFIG_COMEDI_AMPLC_DIO200=y
CONFIG_COMEDI_AMPLC_PC236=m
CONFIG_COMEDI_DAS08=y
CONFIG_COMEDI_NI_LABPC=m
CONFIG_COMEDI_NI_TIO=y
CONFIG_COMEDI_NI_ROUTING=y
CONFIG_COMEDI_TESTS=m
# CONFIG_COMEDI_TESTS_EXAMPLE is not set
CONFIG_COMEDI_TESTS_NI_ROUTES=m
CONFIG_STAGING=y
CONFIG_RTLLIB=m
CONFIG_RTLLIB_CRYPTO_CCMP=m
CONFIG_RTLLIB_CRYPTO_TKIP=m
# CONFIG_RTLLIB_CRYPTO_WEP is not set
CONFIG_RTL8723BS=m
CONFIG_OCTEON_ETHERNET=y

#
# IIO staging drivers
#

#
# Accelerometers
#
# end of Accelerometers

#
# Analog to digital converters
#
# end of Analog to digital converters

#
# Analog digital bi-direction converters
#
CONFIG_ADT7316=m
# CONFIG_ADT7316_I2C is not set
# end of Analog digital bi-direction converters

#
# Direct Digital Synthesis
#
# end of Direct Digital Synthesis

#
# Network Analyzer, Impedance Converters
#
CONFIG_AD5933=m
# end of Network Analyzer, Impedance Converters

#
# Active energy metering IC
#
# CONFIG_ADE7854 is not set
# end of Active energy metering IC

#
# Resolver to digital converters
#
# end of Resolver to digital converters
# end of IIO staging drivers

CONFIG_STAGING_MEDIA=y
CONFIG_MOST_COMPONENTS=m
CONFIG_MOST_NET=m
# CONFIG_MOST_I2C is not set
CONFIG_KS7010=y
CONFIG_GREYBUS_BOOTROM=m
# CONFIG_GREYBUS_LIGHT is not set
CONFIG_GREYBUS_LOG=m
CONFIG_GREYBUS_LOOPBACK=m
CONFIG_GREYBUS_POWER=m
CONFIG_GREYBUS_RAW=m
CONFIG_GREYBUS_VIBRATOR=m
CONFIG_GREYBUS_BRIDGED_PHY=m
CONFIG_GREYBUS_GPIO=m
# CONFIG_GREYBUS_I2C is not set
# CONFIG_GREYBUS_PWM is not set
CONFIG_GREYBUS_SDIO=m
CONFIG_GREYBUS_UART=m
# CONFIG_GREYBUS_ARCHE is not set
# CONFIG_FIELDBUS_DEV is not set
CONFIG_GOLDFISH=y
CONFIG_GOLDFISH_PIPE=m
CONFIG_CHROME_PLATFORMS=y
CONFIG_CROS_EC=y
# CONFIG_CROS_EC_I2C is not set
CONFIG_CROS_EC_PROTO=y
# CONFIG_CROS_KBD_LED_BACKLIGHT is not set
# CONFIG_CROS_EC_CHARDEV is not set
# CONFIG_CROS_EC_LIGHTBAR is not set
# CONFIG_CROS_EC_DEBUGFS is not set
CONFIG_CROS_EC_SENSORHUB=m
# CONFIG_CROS_EC_SYSFS is not set
# CONFIG_CROS_USBPD_NOTIFY is not set
# CONFIG_MELLANOX_PLATFORM is not set
# CONFIG_OLPC_XO175 is not set
# CONFIG_SURFACE_PLATFORMS is not set
# CONFIG_COMMON_CLK is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
CONFIG_CLKSRC_MMIO=y
# CONFIG_BCM2835_TIMER is not set
CONFIG_BCM_KONA_TIMER=y
CONFIG_DAVINCI_TIMER=y
# CONFIG_DIGICOLOR_TIMER is not set
# CONFIG_OMAP_DM_TIMER is not set
CONFIG_DW_APB_TIMER=y
# CONFIG_FTTMR010_TIMER is not set
CONFIG_IXP4XX_TIMER=y
CONFIG_MESON6_TIMER=y
# CONFIG_OWL_TIMER is not set
CONFIG_RDA_TIMER=y
# CONFIG_SUN4I_TIMER is not set
CONFIG_TEGRA_TIMER=y
CONFIG_TEGRA186_TIMER=y
# CONFIG_VT8500_TIMER is not set
# CONFIG_NPCM7XX_TIMER is not set
CONFIG_ASM9260_TIMER=y
# CONFIG_CLKSRC_DBX500_PRCMU is not set
# CONFIG_CLPS711X_TIMER is not set
CONFIG_MXS_TIMER=y
CONFIG_NSPIRE_TIMER=y
# CONFIG_INTEGRATOR_AP_TIMER is not set
CONFIG_CLKSRC_PISTACHIO=y
CONFIG_CLKSRC_STM32_LP=y
CONFIG_ARMV7M_SYSTICK=y
# CONFIG_ATMEL_PIT is not set
# CONFIG_ATMEL_ST is not set
# CONFIG_CLKSRC_SAMSUNG_PWM is not set
# CONFIG_FSL_FTM_TIMER is not set
# CONFIG_OXNAS_RPS_TIMER is not set
CONFIG_MTK_TIMER=y
# CONFIG_SH_TIMER_CMT is not set
CONFIG_SH_TIMER_MTU2=y
# CONFIG_RENESAS_OSTM is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_CLKSRC_PXA is not set
# CONFIG_TIMER_IMX_SYS_CTR is not set
# CONFIG_CLKSRC_ST_LPC is not set
CONFIG_GXP_TIMER=y
# CONFIG_MSC313E_TIMER is not set
CONFIG_MICROCHIP_PIT64B=y
# CONFIG_GOLDFISH_TIMER is not set
# end of Clock Source drivers

CONFIG_MAILBOX=y
CONFIG_IMX_MBOX=m
CONFIG_ROCKCHIP_MBOX=y
CONFIG_ALTERA_MBOX=y
CONFIG_POLARFIRE_SOC_MAILBOX=m
CONFIG_QCOM_APCS_IPC=y
CONFIG_BCM_PDC_MBOX=y
CONFIG_STM32_IPCC=y
CONFIG_MTK_ADSP_MBOX=m
CONFIG_MTK_CMDQ_MBOX=m
# CONFIG_SUN6I_MSGBOX is not set
CONFIG_SPRD_MBOX=m
# CONFIG_QCOM_IPCC is not set
CONFIG_IOMMU_IOVA=m
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IO_PGTABLE=y
CONFIG_IOMMU_IO_PGTABLE_ARMV7S=y
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S_SELFTEST is not set
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_OMAP_IOMMU=y
CONFIG_OMAP_IOMMU_DEBUG=y
# CONFIG_ROCKCHIP_IOMMU is not set
CONFIG_SUN50I_IOMMU=y
# CONFIG_EXYNOS_IOMMU is not set
CONFIG_S390_CCW_IOMMU=y
# CONFIG_S390_AP_IOMMU is not set
# CONFIG_MTK_IOMMU is not set
CONFIG_SPRD_IOMMU=y

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
CONFIG_MESON_CANVAS=y
# CONFIG_MESON_CLK_MEASURE is not set
CONFIG_MESON_GX_SOCINFO=y
CONFIG_MESON_MX_SOCINFO=y
# end of Amlogic SoC drivers

#
# Apple SoC drivers
#
# CONFIG_APPLE_RTKIT is not set
# CONFIG_APPLE_SART is not set
# end of Apple SoC drivers

#
# ASPEED SoC drivers
#
# CONFIG_ASPEED_LPC_CTRL is not set
CONFIG_ASPEED_LPC_SNOOP=m
CONFIG_ASPEED_UART_ROUTING=m
CONFIG_ASPEED_P2A_CTRL=m
CONFIG_ASPEED_SOCINFO=y
# end of ASPEED SoC drivers

CONFIG_AT91_SOC_ID=y
CONFIG_AT91_SOC_SFR=y

#
# Broadcom SoC drivers
#
CONFIG_SOC_BCM63XX=y
CONFIG_SOC_BRCMSTB=y
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
CONFIG_FSL_GUTS=y
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
CONFIG_SOC_IMX8M=y
CONFIG_SOC_IMX9=y
# end of i.MX SoC drivers

#
# IXP4xx SoC drivers
#
# CONFIG_IXP4XX_QMGR is not set
CONFIG_IXP4XX_NPE=m
# end of IXP4xx SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
CONFIG_LITEX=y
CONFIG_LITEX_SOC_CONTROLLER=y
# end of Enable LiteX SoC Builder specific drivers

#
# MediaTek SoC drivers
#
CONFIG_MTK_CMDQ=m
CONFIG_MTK_DEVAPC=y
CONFIG_MTK_INFRACFG=y
CONFIG_MTK_MMSYS=y
CONFIG_MTK_SVS=m
# end of MediaTek SoC drivers

CONFIG_POLARFIRE_SOC_SYS_CTRL=m

#
# Qualcomm SoC drivers
#
CONFIG_QCOM_GENI_SE=m
CONFIG_QCOM_GSBI=y
CONFIG_QCOM_LLCC=y
CONFIG_QCOM_QMI_HELPERS=y
CONFIG_QCOM_RPMH=m
CONFIG_QCOM_SPM=y
# CONFIG_QCOM_ICC_BWMON is not set
# end of Qualcomm SoC drivers

# CONFIG_SOC_RENESAS is not set
CONFIG_ROCKCHIP_GRF=y
# CONFIG_SOC_SAMSUNG is not set
# CONFIG_SOC_TEGRA20_VOLTAGE_COUPLER is not set
CONFIG_SOC_TEGRA30_VOLTAGE_COUPLER=y
CONFIG_SOC_TI=y
CONFIG_UX500_SOC_ID=y

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=m
# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
CONFIG_DEVFREQ_GOV_POWERSAVE=m
# CONFIG_DEVFREQ_GOV_USERSPACE is not set
CONFIG_DEVFREQ_GOV_PASSIVE=y

#
# DEVFREQ Drivers
#
CONFIG_ARM_EXYNOS_BUS_DEVFREQ=m
# CONFIG_ARM_IMX_BUS_DEVFREQ is not set
CONFIG_ARM_MEDIATEK_CCI_DEVFREQ=m
CONFIG_PM_DEVFREQ_EVENT=y
CONFIG_DEVFREQ_EVENT_EXYNOS_NOCP=y
CONFIG_DEVFREQ_EVENT_EXYNOS_PPMU=y
# CONFIG_DEVFREQ_EVENT_ROCKCHIP_DFI is not set
CONFIG_EXTCON=m

#
# Extcon Device Drivers
#
CONFIG_EXTCON_ADC_JACK=m
# CONFIG_EXTCON_FSA9480 is not set
# CONFIG_EXTCON_GPIO is not set
CONFIG_EXTCON_MAX14577=m
CONFIG_EXTCON_MAX3355=m
# CONFIG_EXTCON_MAX77693 is not set
CONFIG_EXTCON_PTN5150=m
# CONFIG_EXTCON_QCOM_SPMI_MISC is not set
CONFIG_EXTCON_RT8973A=m
CONFIG_EXTCON_SM5502=m
# CONFIG_EXTCON_USB_GPIO is not set
CONFIG_EXTCON_USBC_CROS_EC=m
CONFIG_MEMORY=y
CONFIG_DDR=y
# CONFIG_BRCMSTB_DPFE is not set
# CONFIG_BRCMSTB_MEMC is not set
CONFIG_BT1_L2_CTL=y
# CONFIG_TI_EMIF is not set
# CONFIG_FSL_CORENET_CF is not set
# CONFIG_FSL_IFC is not set
# CONFIG_MTK_SMI is not set
CONFIG_DA8XX_DDRCTL=y
CONFIG_RENESAS_RPCIF=m
CONFIG_STM32_FMC2_EBI=m
CONFIG_SAMSUNG_MC=y
CONFIG_EXYNOS5422_DMC=m
# CONFIG_EXYNOS_SROM is not set
CONFIG_IIO=m
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=m
CONFIG_IIO_BUFFER_DMA=m
CONFIG_IIO_BUFFER_DMAENGINE=m
CONFIG_IIO_BUFFER_HW_CONSUMER=m
CONFIG_IIO_KFIFO_BUF=m
CONFIG_IIO_TRIGGERED_BUFFER=m
CONFIG_IIO_CONFIGFS=m
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
CONFIG_IIO_SW_DEVICE=m
CONFIG_IIO_SW_TRIGGER=m
CONFIG_IIO_TRIGGERED_EVENT=m

#
# Accelerometers
#
# CONFIG_ADXL313_I2C is not set
CONFIG_ADXL345=m
CONFIG_ADXL345_I2C=m
CONFIG_ADXL355=m
CONFIG_ADXL355_I2C=m
CONFIG_ADXL367=m
CONFIG_ADXL367_I2C=m
CONFIG_ADXL372=m
CONFIG_ADXL372_I2C=m
CONFIG_BMA180=m
CONFIG_BMA400=m
CONFIG_BMA400_I2C=m
CONFIG_BMC150_ACCEL=m
CONFIG_BMC150_ACCEL_I2C=m
CONFIG_DA280=m
CONFIG_DA311=m
CONFIG_DMARD06=m
# CONFIG_DMARD09 is not set
CONFIG_DMARD10=m
CONFIG_FXLS8962AF=m
CONFIG_FXLS8962AF_I2C=m
CONFIG_IIO_ST_ACCEL_3AXIS=m
# CONFIG_IIO_ST_ACCEL_I2C_3AXIS is not set
# CONFIG_KXSD9 is not set
# CONFIG_KXCJK1013 is not set
CONFIG_MC3230=m
CONFIG_MMA7455=m
CONFIG_MMA7455_I2C=m
CONFIG_MMA7660=m
# CONFIG_MMA8452 is not set
CONFIG_MMA9551_CORE=m
# CONFIG_MMA9551 is not set
CONFIG_MMA9553=m
CONFIG_MSA311=m
CONFIG_MXC4005=m
CONFIG_MXC6255=m
CONFIG_STK8312=m
# CONFIG_STK8BA50 is not set
# end of Accelerometers

#
# Analog to digital converters
#
CONFIG_AD7091R5=m
# CONFIG_AD7291 is not set
CONFIG_AD7606=m
CONFIG_AD7606_IFACE_PARALLEL=m
CONFIG_AD799X=m
CONFIG_AT91_SAMA5D2_ADC=m
CONFIG_AXP20X_ADC=m
CONFIG_AXP288_ADC=m
# CONFIG_BCM_IPROC_ADC is not set
CONFIG_BERLIN2_ADC=m
CONFIG_ENVELOPE_DETECTOR=m
# CONFIG_HX711 is not set
# CONFIG_INA2XX_ADC is not set
CONFIG_INGENIC_ADC=m
CONFIG_IMX7D_ADC=m
# CONFIG_IMX8QXP_ADC is not set
CONFIG_LPC18XX_ADC=m
CONFIG_LPC32XX_ADC=m
CONFIG_LTC2471=m
CONFIG_LTC2485=m
# CONFIG_LTC2497 is not set
CONFIG_MAX1363=m
CONFIG_MAX9611=m
CONFIG_MCP3422=m
CONFIG_MEDIATEK_MT6360_ADC=m
CONFIG_MEDIATEK_MT6577_AUXADC=m
CONFIG_MP2629_ADC=m
CONFIG_NAU7802=m
CONFIG_NPCM_ADC=m
CONFIG_QCOM_VADC_COMMON=m
# CONFIG_QCOM_PM8XXX_XOADC is not set
CONFIG_QCOM_SPMI_IADC=m
CONFIG_QCOM_SPMI_VADC=m
# CONFIG_QCOM_SPMI_ADC5 is not set
CONFIG_RCAR_GYRO_ADC=m
# CONFIG_ROCKCHIP_SARADC is not set
CONFIG_RICHTEK_RTQ6056=m
CONFIG_RZG2L_ADC=m
# CONFIG_SC27XX_ADC is not set
CONFIG_SPEAR_ADC=m
CONFIG_SD_ADC_MODULATOR=m
CONFIG_STM32_DFSDM_CORE=m
CONFIG_STM32_DFSDM_ADC=m
# CONFIG_TI_ADC081C is not set
CONFIG_TI_ADS1015=m
CONFIG_TI_AM335X_ADC=m
CONFIG_VF610_ADC=m
CONFIG_XILINX_XADC=m
CONFIG_XILINX_AMS=m
# end of Analog to digital converters

#
# Analog to digital and digital to analog converters
#
# end of Analog to digital and digital to analog converters

#
# Analog Front Ends
#
# CONFIG_IIO_RESCALE is not set
# end of Analog Front Ends

#
# Amplifiers
#
CONFIG_HMC425=m
# end of Amplifiers

#
# Capacitance to digital converters
#
CONFIG_AD7150=m
CONFIG_AD7746=m
# end of Capacitance to digital converters

#
# Chemical Sensors
#
CONFIG_ATLAS_PH_SENSOR=m
CONFIG_ATLAS_EZO_SENSOR=m
# CONFIG_BME680 is not set
CONFIG_CCS811=m
# CONFIG_IAQCORE is not set
CONFIG_PMS7003=m
CONFIG_SCD30_CORE=m
CONFIG_SCD30_I2C=m
CONFIG_SCD30_SERIAL=m
# CONFIG_SCD4X is not set
CONFIG_SENSIRION_SGP30=m
# CONFIG_SENSIRION_SGP40 is not set
CONFIG_SPS30=m
# CONFIG_SPS30_I2C is not set
CONFIG_SPS30_SERIAL=m
CONFIG_SENSEAIR_SUNRISE_CO2=m
# CONFIG_VZ89X is not set
# end of Chemical Sensors

# CONFIG_IIO_CROS_EC_SENSORS_CORE is not set

#
# Hid Sensor IIO Common
#
# end of Hid Sensor IIO Common

CONFIG_IIO_MS_SENSORS_I2C=m

#
# IIO SCMI Sensors
#
# CONFIG_IIO_SCMI is not set
# end of IIO SCMI Sensors

#
# SSP Sensor Common
#
# end of SSP Sensor Common

CONFIG_IIO_ST_SENSORS_CORE=m

#
# Digital to analog converters
#
CONFIG_AD5064=m
CONFIG_AD5380=m
# CONFIG_AD5446 is not set
# CONFIG_AD5593R is not set
CONFIG_AD5686=m
CONFIG_AD5696_I2C=m
# CONFIG_DPOT_DAC is not set
# CONFIG_DS4424 is not set
# CONFIG_LPC18XX_DAC is not set
# CONFIG_M62332 is not set
# CONFIG_MAX517 is not set
CONFIG_MAX5821=m
# CONFIG_MCP4725 is not set
# CONFIG_STM32_DAC is not set
CONFIG_TI_DAC5571=m
CONFIG_VF610_DAC=m
# end of Digital to analog converters

#
# IIO dummy driver
#
CONFIG_IIO_DUMMY_EVGEN=m
CONFIG_IIO_SIMPLE_DUMMY=m
CONFIG_IIO_SIMPLE_DUMMY_EVENTS=y
# CONFIG_IIO_SIMPLE_DUMMY_BUFFER is not set
# end of IIO dummy driver

#
# Filters
#
# end of Filters

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#
# end of Clock Generator/Distribution

#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# end of Phase-Locked Loop (PLL) frequency synthesizers
# end of Frequency Synthesizers DDS/PLL

#
# Digital gyroscope sensors
#
CONFIG_BMG160=m
CONFIG_BMG160_I2C=m
# CONFIG_FXAS21002C is not set
CONFIG_MPU3050=m
CONFIG_MPU3050_I2C=m
# CONFIG_IIO_ST_GYRO_3AXIS is not set
# CONFIG_ITG3200 is not set
# end of Digital gyroscope sensors

#
# Health Sensors
#

#
# Heart Rate Monitors
#
CONFIG_AFE4404=m
CONFIG_MAX30100=m
CONFIG_MAX30102=m
# end of Heart Rate Monitors
# end of Health Sensors

#
# Humidity sensors
#
# CONFIG_AM2315 is not set
# CONFIG_DHT11 is not set
CONFIG_HDC100X=m
CONFIG_HDC2010=m
CONFIG_HTS221=m
CONFIG_HTS221_I2C=m
# CONFIG_HTU21 is not set
CONFIG_SI7005=m
CONFIG_SI7020=m
# end of Humidity sensors

#
# Inertial measurement units
#
CONFIG_BMI160=m
CONFIG_BMI160_I2C=m
CONFIG_BOSCH_BNO055=m
CONFIG_BOSCH_BNO055_SERIAL=m
CONFIG_BOSCH_BNO055_I2C=m
CONFIG_FXOS8700=m
CONFIG_FXOS8700_I2C=m
CONFIG_KMX61=m
# CONFIG_INV_ICM42600_I2C is not set
CONFIG_INV_MPU6050_IIO=m
CONFIG_INV_MPU6050_I2C=m
# CONFIG_IIO_ST_LSM6DSX is not set
CONFIG_IIO_ST_LSM9DS0=m
# CONFIG_IIO_ST_LSM9DS0_I2C is not set
# end of Inertial measurement units

#
# Light sensors
#
# CONFIG_ADJD_S311 is not set
# CONFIG_ADUX1020 is not set
CONFIG_AL3010=m
CONFIG_AL3320A=m
CONFIG_APDS9300=m
# CONFIG_APDS9960 is not set
CONFIG_AS73211=m
CONFIG_BH1750=m
CONFIG_BH1780=m
CONFIG_CM32181=m
CONFIG_CM3232=m
CONFIG_CM3323=m
CONFIG_CM3605=m
CONFIG_CM36651=m
# CONFIG_GP2AP002 is not set
CONFIG_GP2AP020A00F=m
CONFIG_IQS621_ALS=m
CONFIG_SENSORS_ISL29018=m
CONFIG_SENSORS_ISL29028=m
CONFIG_ISL29125=m
CONFIG_JSA1212=m
CONFIG_RPR0521=m
CONFIG_SENSORS_LM3533=m
CONFIG_LTR501=m
# CONFIG_LTRF216A is not set
# CONFIG_LV0104CS is not set
CONFIG_MAX44000=m
# CONFIG_MAX44009 is not set
# CONFIG_NOA1305 is not set
# CONFIG_OPT3001 is not set
CONFIG_PA12203001=m
# CONFIG_SI1133 is not set
CONFIG_SI1145=m
CONFIG_STK3310=m
CONFIG_ST_UVIS25=m
CONFIG_ST_UVIS25_I2C=m
# CONFIG_TCS3414 is not set
CONFIG_TCS3472=m
# CONFIG_SENSORS_TSL2563 is not set
CONFIG_TSL2583=m
CONFIG_TSL2591=m
CONFIG_TSL2772=m
CONFIG_TSL4531=m
# CONFIG_US5182D is not set
CONFIG_VCNL4000=m
CONFIG_VCNL4035=m
CONFIG_VEML6030=m
# CONFIG_VEML6070 is not set
CONFIG_VL6180=m
# CONFIG_ZOPT2201 is not set
# end of Light sensors

#
# Magnetometer sensors
#
CONFIG_AK8974=m
CONFIG_AK8975=m
CONFIG_AK09911=m
CONFIG_BMC150_MAGN=m
CONFIG_BMC150_MAGN_I2C=m
CONFIG_MAG3110=m
CONFIG_MMC35240=m
CONFIG_IIO_ST_MAGN_3AXIS=m
# CONFIG_IIO_ST_MAGN_I2C_3AXIS is not set
CONFIG_SENSORS_HMC5843=m
CONFIG_SENSORS_HMC5843_I2C=m
CONFIG_SENSORS_RM3100=m
CONFIG_SENSORS_RM3100_I2C=m
CONFIG_YAMAHA_YAS530=m
# end of Magnetometer sensors

#
# Multiplexers
#
CONFIG_IIO_MUX=m
# end of Multiplexers

#
# Inclinometer sensors
#
# end of Inclinometer sensors

#
# Triggers - standalone
#
# CONFIG_IIO_HRTIMER_TRIGGER is not set
# CONFIG_IIO_INTERRUPT_TRIGGER is not set
# CONFIG_IIO_STM32_LPTIMER_TRIGGER is not set
CONFIG_IIO_STM32_TIMER_TRIGGER=m
CONFIG_IIO_TIGHTLOOP_TRIGGER=m
CONFIG_IIO_SYSFS_TRIGGER=m
# end of Triggers - standalone

#
# Linear and angular position sensors
#
CONFIG_IQS624_POS=m
# end of Linear and angular position sensors

#
# Digital potentiometers
#
# CONFIG_AD5110 is not set
CONFIG_AD5272=m
# CONFIG_DS1803 is not set
CONFIG_MAX5432=m
CONFIG_MCP4018=m
CONFIG_MCP4531=m
CONFIG_TPL0102=m
# end of Digital potentiometers

#
# Digital potentiostats
#
CONFIG_LMP91000=m
# end of Digital potentiostats

#
# Pressure sensors
#
# CONFIG_ABP060MG is not set
CONFIG_BMP280=m
CONFIG_BMP280_I2C=m
CONFIG_DLHL60D=m
# CONFIG_DPS310 is not set
# CONFIG_HP03 is not set
CONFIG_ICP10100=m
CONFIG_MPL115=m
CONFIG_MPL115_I2C=m
# CONFIG_MPL3115 is not set
CONFIG_MS5611=m
# CONFIG_MS5611_I2C is not set
CONFIG_MS5637=m
CONFIG_IIO_ST_PRESS=m
# CONFIG_IIO_ST_PRESS_I2C is not set
CONFIG_T5403=m
CONFIG_HP206C=m
CONFIG_ZPA2326=m
CONFIG_ZPA2326_I2C=m
# end of Pressure sensors

#
# Lightning sensors
#
# end of Lightning sensors

#
# Proximity and distance sensors
#
CONFIG_CROS_EC_MKBP_PROXIMITY=m
CONFIG_ISL29501=m
# CONFIG_LIDAR_LITE_V2 is not set
CONFIG_MB1232=m
# CONFIG_PING is not set
CONFIG_RFD77402=m
CONFIG_SRF04=m
CONFIG_SX_COMMON=m
# CONFIG_SX9310 is not set
# CONFIG_SX9324 is not set
CONFIG_SX9360=m
CONFIG_SX9500=m
# CONFIG_SRF08 is not set
# CONFIG_VCNL3020 is not set
# CONFIG_VL53L0X_I2C is not set
# end of Proximity and distance sensors

#
# Resolver to digital converters
#
# end of Resolver to digital converters

#
# Temperature sensors
#
CONFIG_IQS620AT_TEMP=m
CONFIG_MLX90614=m
# CONFIG_MLX90632 is not set
CONFIG_TMP006=m
CONFIG_TMP007=m
CONFIG_TMP117=m
CONFIG_TSYS01=m
CONFIG_TSYS02D=m
# end of Temperature sensors

CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
CONFIG_PWM_BCM2835=m
CONFIG_PWM_BERLIN=m
CONFIG_PWM_BRCMSTB=m
CONFIG_PWM_CLK=y
CONFIG_PWM_CLPS711X=m
CONFIG_PWM_CROS_EC=m
CONFIG_PWM_EP93XX=m
# CONFIG_PWM_HIBVT is not set
CONFIG_PWM_IMX1=y
CONFIG_PWM_IMX27=m
CONFIG_PWM_INTEL_LGM=m
CONFIG_PWM_IQS620A=m
# CONFIG_PWM_LPC18XX_SCT is not set
# CONFIG_PWM_LPC32XX is not set
CONFIG_PWM_LPSS=m
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_MTK_DISP is not set
# CONFIG_PWM_MEDIATEK is not set
CONFIG_PWM_NTXEC=m
# CONFIG_PWM_PCA9685 is not set
# CONFIG_PWM_PXA is not set
# CONFIG_PWM_RASPBERRYPI_POE is not set
CONFIG_PWM_RCAR=m
CONFIG_PWM_RENESAS_TPU=m
CONFIG_PWM_ROCKCHIP=m
CONFIG_PWM_SAMSUNG=m
CONFIG_PWM_SL28CPLD=y
# CONFIG_PWM_SPRD is not set
CONFIG_PWM_STM32=y
CONFIG_PWM_STM32_LP=y
CONFIG_PWM_TEGRA=m
CONFIG_PWM_TIECAP=y
CONFIG_PWM_TIEHRPWM=m
CONFIG_PWM_VISCONTI=m
CONFIG_PWM_VT8500=m

#
# IRQ chip support
#
# CONFIG_AL_FIC is not set
CONFIG_MADERA_IRQ=y
# CONFIG_RENESAS_INTC_IRQPIN is not set
# CONFIG_RENESAS_IRQC is not set
CONFIG_RENESAS_RZA1_IRQC=y
# CONFIG_RENESAS_RZG2L_IRQC is not set
CONFIG_SL28CPLD_INTC=y
CONFIG_TS4800_IRQ=m
# CONFIG_INGENIC_TCU_IRQ is not set
# CONFIG_IRQ_UNIPHIER_AIDET is not set
CONFIG_MESON_IRQ_GPIO=y
# CONFIG_IMX_IRQSTEER is not set
# CONFIG_IMX_INTMUX is not set
CONFIG_EXYNOS_IRQ_COMBINER=y
CONFIG_MST_IRQ=y
# CONFIG_MCHP_EIC is not set
CONFIG_SUNPLUS_SP7021_INTC=y
# end of IRQ chip support

CONFIG_IPACK_BUS=m
CONFIG_SERIAL_IPOCTAL=m
CONFIG_RESET_CONTROLLER=y
CONFIG_RESET_A10SR=y
CONFIG_RESET_ATH79=y
# CONFIG_RESET_AXS10X is not set
CONFIG_RESET_BCM6345=y
CONFIG_RESET_BERLIN=m
CONFIG_RESET_BRCMSTB=y
CONFIG_RESET_BRCMSTB_RESCAL=y
CONFIG_RESET_HSDK=y
CONFIG_RESET_IMX7=m
# CONFIG_RESET_LANTIQ is not set
# CONFIG_RESET_LPC18XX is not set
# CONFIG_RESET_MCHP_SPARX5 is not set
CONFIG_RESET_MESON=y
CONFIG_RESET_MESON_AUDIO_ARB=y
CONFIG_RESET_NPCM=y
# CONFIG_RESET_PISTACHIO is not set
CONFIG_RESET_QCOM_AOSS=y
CONFIG_RESET_QCOM_PDC=y
CONFIG_RESET_RASPBERRYPI=m
CONFIG_RESET_RZG2L_USBPHY_CTRL=m
CONFIG_RESET_SCMI=y
CONFIG_RESET_SIMPLE=y
# CONFIG_RESET_SOCFPGA is not set
# CONFIG_RESET_STARFIVE_JH7100 is not set
# CONFIG_RESET_SUNPLUS is not set
CONFIG_RESET_SUNXI=y
CONFIG_RESET_TI_SCI=y
CONFIG_RESET_TI_SYSCON=m
CONFIG_RESET_TI_TPS380X=m
CONFIG_RESET_TN48M_CPLD=y
# CONFIG_RESET_ZYNQ is not set
CONFIG_COMMON_RESET_HI3660=m
CONFIG_COMMON_RESET_HI6220=y

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_PISTACHIO_USB is not set
CONFIG_PHY_CAN_TRANSCEIVER=m

#
# PHY drivers for Broadcom platforms
#
CONFIG_PHY_BCM63XX_USBH=y
# CONFIG_BCM_KONA_USB2_PHY is not set
CONFIG_PHY_NS2_PCIE=m
# end of PHY drivers for Broadcom platforms

CONFIG_PHY_HI6220_USB=y
# CONFIG_PHY_HI3660_USB is not set
CONFIG_PHY_HI3670_USB=m
CONFIG_PHY_HI3670_PCIE=y
# CONFIG_PHY_HISTB_COMBPHY is not set
CONFIG_PHY_HISI_INNO_USB2=m
# CONFIG_PHY_PXA_28NM_HSIC is not set
CONFIG_PHY_PXA_28NM_USB2=m
CONFIG_PHY_PXA_USB=m
# CONFIG_PHY_MMP3_USB is not set
CONFIG_PHY_MMP3_HSIC=m
CONFIG_PHY_MT7621_PCI=y
CONFIG_PHY_RALINK_USB=y
CONFIG_PHY_RCAR_GEN3_USB3=m
# CONFIG_PHY_ROCKCHIP_DPHY_RX0 is not set
CONFIG_PHY_ROCKCHIP_PCIE=y
CONFIG_PHY_ROCKCHIP_SNPS_PCIE3=y
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
CONFIG_PHY_SAMSUNG_USB2=m
# CONFIG_PHY_S5PV210_USB2 is not set
# CONFIG_PHY_ST_SPEAR1310_MIPHY is not set
# CONFIG_PHY_ST_SPEAR1340_MIPHY is not set
# CONFIG_PHY_STIH407_USB is not set
CONFIG_PHY_TEGRA194_P2U=y
CONFIG_PHY_DA8XX_USB=m
CONFIG_OMAP_CONTROL_PHY=y
CONFIG_TI_PIPE3=y
CONFIG_PHY_INTEL_KEEMBAY_EMMC=m
CONFIG_PHY_INTEL_KEEMBAY_USB=m
CONFIG_PHY_INTEL_LGM_EMMC=y
CONFIG_PHY_XILINX_ZYNQMP=y
# end of PHY Subsystem

CONFIG_POWERCAP=y
# CONFIG_MCB is not set
# CONFIG_RAS is not set

#
# Android
#
CONFIG_ANDROID_BINDER_IPC=y
# CONFIG_ANDROID_BINDERFS is not set
CONFIG_ANDROID_BINDER_DEVICES="binder,hwbinder,vndbinder"
CONFIG_ANDROID_BINDER_IPC_SELFTEST=y
# end of Android

# CONFIG_DAX is not set
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_APPLE_EFUSES is not set
# CONFIG_NVMEM_BCM_OCOTP is not set
# CONFIG_NVMEM_BRCM_NVRAM is not set
CONFIG_NVMEM_IMX_IIM=y
CONFIG_NVMEM_IMX_OCOTP=m
CONFIG_NVMEM_LAN9662_OTPC=y
CONFIG_NVMEM_LAYERSCAPE_SFP=y
# CONFIG_NVMEM_LPC18XX_EEPROM is not set
# CONFIG_NVMEM_LPC18XX_OTP is not set
# CONFIG_NVMEM_MESON_MX_EFUSE is not set
# CONFIG_NVMEM_MICROCHIP_OTPC is not set
CONFIG_NVMEM_MTK_EFUSE=m
CONFIG_NVMEM_MXS_OCOTP=m
# CONFIG_NVMEM_NINTENDO_OTP is not set
CONFIG_NVMEM_QCOM_QFPROM=m
# CONFIG_NVMEM_RAVE_SP_EEPROM is not set
# CONFIG_NVMEM_RMEM is not set
CONFIG_NVMEM_ROCKCHIP_EFUSE=m
CONFIG_NVMEM_ROCKCHIP_OTP=m
# CONFIG_NVMEM_SC27XX_EFUSE is not set
CONFIG_NVMEM_SNVS_LPGPR=y
CONFIG_NVMEM_SPMI_SDAM=m
CONFIG_NVMEM_SPRD_EFUSE=m
# CONFIG_NVMEM_STM32_ROMEM is not set
# CONFIG_NVMEM_SUNPLUS_OCOTP is not set
CONFIG_NVMEM_UNIPHIER_EFUSE=m
CONFIG_NVMEM_VF610_OCOTP=m

#
# HW tracing support
#
CONFIG_STM=m
CONFIG_STM_PROTO_BASIC=m
CONFIG_STM_PROTO_SYS_T=m
CONFIG_STM_DUMMY=m
CONFIG_STM_SOURCE_CONSOLE=m
CONFIG_STM_SOURCE_HEARTBEAT=m
CONFIG_INTEL_TH=m
# CONFIG_INTEL_TH_GTH is not set
CONFIG_INTEL_TH_STH=m
# CONFIG_INTEL_TH_MSU is not set
CONFIG_INTEL_TH_PTI=m
# CONFIG_INTEL_TH_DEBUG is not set
# end of HW tracing support

# CONFIG_FPGA is not set
CONFIG_TEE=m
CONFIG_MULTIPLEXER=m

#
# Multiplexer drivers
#
CONFIG_MUX_ADG792A=m
CONFIG_MUX_GPIO=m
CONFIG_MUX_MMIO=m
# end of Multiplexer drivers

CONFIG_PM_OPP=y
CONFIG_SIOX=m
CONFIG_SIOX_BUS_GPIO=m
# CONFIG_SLIMBUS is not set
CONFIG_INTERCONNECT=y
CONFIG_INTERCONNECT_IMX=m
# CONFIG_INTERCONNECT_IMX8MM is not set
CONFIG_INTERCONNECT_IMX8MN=m
CONFIG_INTERCONNECT_IMX8MQ=m
CONFIG_INTERCONNECT_IMX8MP=m
CONFIG_INTERCONNECT_QCOM_OSM_L3=y
# CONFIG_INTERCONNECT_SAMSUNG is not set
CONFIG_COUNTER=y
CONFIG_104_QUAD_8=m
CONFIG_INTERRUPT_CNT=y
CONFIG_STM32_TIMER_CNT=m
CONFIG_STM32_LPTIMER_CNT=m
CONFIG_TI_EQEP=y
# CONFIG_TI_ECAP_CAPTURE is not set
CONFIG_MOST=y
CONFIG_MOST_CDEV=m
# CONFIG_MOST_SND is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=m
CONFIG_REISERFS_CHECK=y
CONFIG_REISERFS_PROC_INFO=y
# CONFIG_REISERFS_FS_XATTR is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=y
# CONFIG_XFS_SUPPORT_V4 is not set
# CONFIG_XFS_QUOTA is not set
# CONFIG_XFS_POSIX_ACL is not set
CONFIG_XFS_RT=y
# CONFIG_XFS_ONLINE_SCRUB is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=m
# CONFIG_GFS2_FS_LOCKING_DLM is not set
CONFIG_OCFS2_FS=y
# CONFIG_OCFS2_FS_O2CB is not set
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=y
CONFIG_OCFS2_FS_STATS=y
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_OCFS2_DEBUG_FS=y
CONFIG_NILFS2_FS=y
CONFIG_F2FS_FS=y
# CONFIG_F2FS_STAT_FS is not set
CONFIG_F2FS_FS_XATTR=y
# CONFIG_F2FS_FS_POSIX_ACL is not set
# CONFIG_F2FS_FS_SECURITY is not set
CONFIG_F2FS_CHECK_FS=y
CONFIG_F2FS_FAULT_INJECTION=y
# CONFIG_F2FS_FS_COMPRESSION is not set
# CONFIG_F2FS_IOSTAT is not set
CONFIG_F2FS_UNFAIR_RWSEM=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_DEBUG=y
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
# CONFIG_QFMT_MEM is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=m
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_VIRTIO_FS=m
CONFIG_OVERLAY_FS=m
CONFIG_OVERLAY_FS_REDIRECT_DIR=y
CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y
# CONFIG_OVERLAY_FS_INDEX is not set
CONFIG_OVERLAY_FS_METACOPY=y

#
# Caches
#
CONFIG_NETFS_SUPPORT=m
# CONFIG_NETFS_STATS is not set
CONFIG_FSCACHE=m
# CONFIG_FSCACHE_STATS is not set
# CONFIG_FSCACHE_DEBUG is not set
CONFIG_CACHEFILES=m
CONFIG_CACHEFILES_DEBUG=y
# CONFIG_CACHEFILES_ERROR_INJECTION is not set
# CONFIG_CACHEFILES_ONDEMAND is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_FAT_DEFAULT_UTF8 is not set
CONFIG_EXFAT_FS=y
CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
# CONFIG_NTFS_FS is not set
CONFIG_NTFS3_FS=y
CONFIG_NTFS3_LZX_XPRESS=y
CONFIG_NTFS3_FS_POSIX_ACL=y
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
CONFIG_TMPFS_XATTR=y
CONFIG_MEMFD_CREATE=y
CONFIG_CONFIGFS_FS=y
# end of Pseudo filesystems

# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=m
CONFIG_NFS_V3=m
CONFIG_NFS_V3_ACL=y
# CONFIG_NFS_V4 is not set
CONFIG_NFS_DEBUG=y
# CONFIG_NFS_DISABLE_UDP_SUPPORT is not set
# CONFIG_NFSD is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_DEBUG=y
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
# CONFIG_CIFS_UPCALL is not set
CONFIG_CIFS_XATTR=y
# CONFIG_CIFS_POSIX is not set
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_SWN_UPCALL is not set
CONFIG_CIFS_FSCACHE=y
CONFIG_SMB_SERVER=m
CONFIG_SMB_SERVER_CHECK_CAP_NET_ADMIN=y
# CONFIG_SMB_SERVER_KERBEROS5 is not set
CONFIG_SMBFS_COMMON=m
CONFIG_CODA_FS=y
CONFIG_AFS_FS=m
CONFIG_AFS_DEBUG=y
# CONFIG_AFS_FSCACHE is not set
# CONFIG_AFS_DEBUG_CURSOR is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
CONFIG_NLS_CODEPAGE_775=y
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=y
# CONFIG_NLS_CODEPAGE_855 is not set
CONFIG_NLS_CODEPAGE_857=y
# CONFIG_NLS_CODEPAGE_860 is not set
CONFIG_NLS_CODEPAGE_861=m
# CONFIG_NLS_CODEPAGE_862 is not set
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=y
# CONFIG_NLS_CODEPAGE_865 is not set
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=y
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=y
CONFIG_NLS_CODEPAGE_1251=m
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
CONFIG_NLS_ISO8859_4=y
# CONFIG_NLS_ISO8859_5 is not set
CONFIG_NLS_ISO8859_6=m
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
CONFIG_NLS_ISO8859_13=y
CONFIG_NLS_ISO8859_14=y
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_MAC_ROMAN=y
CONFIG_NLS_MAC_CELTIC=y
# CONFIG_NLS_MAC_CENTEURO is not set
CONFIG_NLS_MAC_CROATIAN=y
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=y
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=y
CONFIG_DLM=y
# CONFIG_DLM_DEPRECATED_API is not set
CONFIG_DLM_DEBUG=y
CONFIG_UNICODE=y
# CONFIG_UNICODE_NORMALIZATION_SELFTEST is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_REQUEST_CACHE=y
# CONFIG_PERSISTENT_KEYRINGS is not set
CONFIG_TRUSTED_KEYS=m
CONFIG_TRUSTED_KEYS_TPM=y
# CONFIG_TRUSTED_KEYS_TEE is not set
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_USER_DECRYPTED_DATA is not set
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_KEY_NOTIFICATIONS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
CONFIG_SECURITYFS=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
CONFIG_STATIC_USERMODEHELPER=y
CONFIG_STATIC_USERMODEHELPER_PATH="/sbin/usermode-helper"
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
CONFIG_INIT_STACK_NONE=y
# CONFIG_INIT_STACK_ALL_PATTERN is not set
# CONFIG_INIT_STACK_ALL_ZERO is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
CONFIG_INIT_ON_FREE_DEFAULT_ON=y
# end of Memory initialization

CONFIG_CC_HAS_RANDSTRUCT=y
CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# end of Kernel hardening options
# end of Security options

CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
# end of Crypto core or helper

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=y
CONFIG_CRYPTO_DH_RFC7919_GROUPS=y
CONFIG_CRYPTO_ECC=y
CONFIG_CRYPTO_ECDH=y
CONFIG_CRYPTO_ECDSA=y
CONFIG_CRYPTO_ECRDSA=m
CONFIG_CRYPTO_SM2=y
CONFIG_CRYPTO_CURVE25519=m
# end of Public-key cryptography

#
# Block ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_ARIA=y
# CONFIG_CRYPTO_BLOWFISH is not set
CONFIG_CRYPTO_CAMELLIA=y
CONFIG_CRYPTO_CAST_COMMON=y
# CONFIG_CRYPTO_CAST5 is not set
CONFIG_CRYPTO_CAST6=y
# CONFIG_CRYPTO_DES is not set
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SM4=y
CONFIG_CRYPTO_SM4_GENERIC=y
# CONFIG_CRYPTO_TWOFISH is not set
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
CONFIG_CRYPTO_ADIANTUM=y
CONFIG_CRYPTO_CHACHA20=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=m
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_HCTR2 is not set
# CONFIG_CRYPTO_KEYWRAP is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=y
CONFIG_CRYPTO_NHPOLY1305=y
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
CONFIG_CRYPTO_AEGIS128=y
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m
# CONFIG_CRYPTO_ESSIV is not set
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
CONFIG_CRYPTO_BLAKE2B=y
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRYPTO_POLY1305=m
CONFIG_CRYPTO_RMD160=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SM3=y
# CONFIG_CRYPTO_SM3_GENERIC is not set
CONFIG_CRYPTO_STREEBOG=y
CONFIG_CRYPTO_VMAC=m
# CONFIG_CRYPTO_WP512 is not set
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_XXHASH=y
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32=y
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRC64_ROCKSOFT=y
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set
# end of Compression

#
# Random number generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_KDF800108_CTR=y
# end of Random number generation

#
# Userspace interface
#
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE is not set
# end of Userspace interface

CONFIG_CRYPTO_HASH_INFO=y
# CONFIG_CRYPTO_HW is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
CONFIG_PKCS7_TEST_KEY=y
# CONFIG_SIGNED_PE_FILE_VERIFICATION is not set
CONFIG_FIPS_SIGNATURE_SELFTEST=y

#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
# CONFIG_MODULE_SIG_KEY_TYPE_RSA is not set
CONFIG_MODULE_SIG_KEY_TYPE_ECDSA=y
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
CONFIG_SYSTEM_EXTRA_CERTIFICATE=y
CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE=4096
# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_LINEAR_RANGES=y
CONFIG_PACKING=y
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_CORDIC=m
CONFIG_PRIME_NUMBERS=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_STMP_DEVICE=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA=y
CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=y
CONFIG_CRYPTO_LIB_CURVE25519=y
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y
CONFIG_CRYPTO_LIB_POLY1305=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC64_ROCKSOFT=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=y
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
CONFIG_CRC32_BIT=y
CONFIG_CRC64=y
# CONFIG_CRC4 is not set
CONFIG_CRC7=y
CONFIG_LIBCRC32C=y
CONFIG_CRC8=m
CONFIG_XXHASH=y
CONFIG_AUDIT_GENERIC=y
CONFIG_RANDOM32_SELFTEST=y
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_MICROLZMA=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
CONFIG_DMA_GLOBAL_POOL=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
# CONFIG_FORCE_NR_CPUS is not set
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=m
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_DIMLIB=y
CONFIG_OID_REGISTRY=y
CONFIG_FONT_SUPPORT=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
# CONFIG_FONT_8x16 is not set
CONFIG_FONT_6x11=y
# CONFIG_FONT_7x14 is not set
CONFIG_FONT_PEARL_8x8=y
CONFIG_FONT_ACORN_8x8=y
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_6x10 is not set
# CONFIG_FONT_10x18 is not set
CONFIG_FONT_SUN8x16=y
CONFIG_FONT_SUN12x22=y
CONFIG_FONT_TER16x32=y
CONFIG_FONT_6x8=y
CONFIG_SG_POOL=y
CONFIG_SBITMAP=y
# CONFIG_PARMAN is not set
CONFIG_OBJAGG=y
# end of Library routines

CONFIG_ASN1_ENCODER=m
CONFIG_POLYNOMIAL=m

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_DYNAMIC_DEBUG is not set
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

# CONFIG_DEBUG_KERNEL is not set

#
# Compile-time checks and compiler options
#
CONFIG_AS_HAS_NON_CONST_LEB128=y
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_DEBUG_FS=y
# CONFIG_DEBUG_FS_ALLOW_ALL is not set
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
CONFIG_DEBUG_FS_ALLOW_NONE=y
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_UBSAN is not set
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# end of Networking Debugging

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
CONFIG_PAGE_POISONING=y
# CONFIG_SHRINKER_DEBUG is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# end of Memory Debugging

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_TEST_LOCKUP=m
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_WW_MUTEX_SELFTEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set

#
# Debug kernel data structures
#
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Debug kernel data structures

#
# RCU Debugging
#
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
# end of RCU Debugging

CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_SAMPLES is not set

#
# hexagon Debugging
#
# end of hexagon Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_RUNTIME_TESTING_MENU is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking

# CONFIG_WARN_MISSING_DOCUMENTS is not set
# CONFIG_WARN_ABI_ERRORS is not set
# end of Kernel hacking

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Lukas Czerner]

On Mon, Nov 21, 2022 at 09:48:18AM -0800, Darrick J. Wong wrote:
> On Mon, Nov 21, 2022 at 03:28:52PM +0100, Lukas Czerner wrote:
> > In memory quota format relies on quota infrastructure to store dquot
> > information for us. While conventional quota formats for file systems
> > with persistent storage can load quota information into dquot from the
> > storage on-demand and hence quota dquot shrinker can free any dquot that
> > is not currently being used, it must be avoided here. Otherwise we can
> > lose valuable information, user provided limits, because there is no
> > persistent storage to load the information from afterwards.
> > 
> > One information that in-memory quota format needs to keep track of is a
> > sorted list of ids for each quota type. This is done by utilizing an rb
> > tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> > 
> > This format can be used to support quota on file system without persistent
> > storage such as tmpfs.
> > 
> > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > ---
> >  fs/quota/Kconfig           |   8 ++
> >  fs/quota/Makefile          |   1 +
> >  fs/quota/dquot.c           |   3 +
> >  fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
> >  include/linux/quota.h      |   7 +-
> >  include/uapi/linux/quota.h |   1 +
> >  6 files changed, 279 insertions(+), 1 deletion(-)
> >  create mode 100644 fs/quota/quota_mem.c
> > 
> > diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> > index b59cd172b5f9..8ea9656ca37b 100644
> > --- a/fs/quota/Kconfig
> > +++ b/fs/quota/Kconfig
> > @@ -67,6 +67,14 @@ config QFMT_V2
> >  	  also supports 64-bit inode and block quota limits. If you need this
> >  	  functionality say Y here.
> >  
> > +config QFMT_MEM
> > +	tristate "Quota in-memory format support "
> > +	depends on QUOTA
> > +	help
> > +	  This config option enables kernel support for in-memory quota
> > +	  format support. Useful to support quota on file system without
> > +	  permanent storage. If you need this functionality say Y here.
> > +
> >  config QUOTACTL
> >  	bool
> >  	default n
> > diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> > index 9160639daffa..935be3f7b731 100644
> > --- a/fs/quota/Makefile
> > +++ b/fs/quota/Makefile
> > @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
> >  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
> >  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
> >  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> > +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > index 0427b44bfee5..f1a7a03632a2 100644
> > --- a/fs/quota/dquot.c
> > +++ b/fs/quota/dquot.c
> > @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
> >  	spin_lock(&dq_list_lock);
> >  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
> >  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> > +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> > +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> > +			continue;
> >  		remove_dquot_hash(dquot);
> >  		remove_free_dquot(dquot);
> >  		remove_inuse(dquot);
> > diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> > new file mode 100644
> > index 000000000000..7d5e82122143
> > --- /dev/null
> > +++ b/fs/quota/quota_mem.c
> > @@ -0,0 +1,260 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * In memory quota format relies on quota infrastructure to store dquot
> > + * information for us. While conventional quota formats for file systems
> > + * with persistent storage can load quota information into dquot from the
> > + * storage on-demand and hence quota dquot shrinker can free any dquot
> > + * that is not currently being used, it must be avoided here. Otherwise we
> > + * can lose valuable information, user provided limits, because there is
> > + * no persistent storage to load the information from afterwards.
> 
> Hmm.  dquots can't /ever/ be reclaimed?  struct dquot is ~256 bytes, and
> assuming 32-bit uids, the upper bound on dquot usage is 2^(32+8) bytes
> == 1TB of memory usage?  Once allocated, you'd have to reboot the whole
> machine to get that memory back?

Hi Darrick,

maybe there are some improvements to the documentation to be made. The
dquots will be freed on unmount as it would normaly. Also only dquots
containing actual user modified limits, so only dquots that are not
DQ_FAKE_B are prevented to be reclaimed by a shrinker see the condition in
dqcache_shrink_scan().

> 
> Would it be wise to "persist" dquot contents to a (private) tmpfs file
> to facilitate incore dquot reclaim?  The tmpfs file data can be paged
> out, or even punched if all the dquot records in that page go back to
> default settings.

The dquot will be flagged as DQ_FAKE_B once the limits are set to 0. But
when I think about it this pose a problem with the default quota limits
because that would change the limits to the defaults once the dquot is
reclaimed and then allocated again. This can be solved by making a
custom .set_dqblk().

Other than this problem, does this address your concern about dquot
reclaim?

Thanks!
-Lukas

> 
> --D
> 
> > + *
> > + * One information that in-memory quota format needs to keep track of is
> > + * a sorted list of ids for each quota type. This is done by utilizing
> > + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> > + * type.
> > + *
> > + * This format can be used to support quota on file system without persistent
> > + * storage such as tmpfs.
> > + */
> > +#include <linux/errno.h>
> > +#include <linux/fs.h>
> > +#include <linux/mount.h>
> > +#include <linux/kernel.h>
> > +#include <linux/init.h>
> > +#include <linux/module.h>
> > +#include <linux/slab.h>
> > +#include <linux/rbtree.h>
> > +
> > +#include <linux/quotaops.h>
> > +#include <linux/quota.h>
> > +
> > +MODULE_AUTHOR("Lukas Czerner");
> > +MODULE_DESCRIPTION("Quota in-memory format support");
> > +MODULE_LICENSE("GPL");
> > +
> > +/*
> > + * The following constants define the amount of time given a user
> > + * before the soft limits are treated as hard limits (usually resulting
> > + * in an allocation failure). The timer is started when the user crosses
> > + * their soft limit, it is reset when they go below their soft limit.
> > + */
> > +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> > +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> > +
> > +struct quota_id {
> > +	struct rb_node	node;
> > +	qid_t		id;
> > +};
> > +
> > +static int mem_check_quota_file(struct super_block *sb, int type)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 1;
> > +}
> > +
> > +/*
> > + * There is no real quota file. Just allocate rb_root for quota ids and
> > + * set limits
> > + */
> > +static int mem_read_file_info(struct super_block *sb, int type)
> > +{
> > +	struct quota_info *dqopt = sb_dqopt(sb);
> > +	struct mem_dqinfo *info = &dqopt->info[type];
> > +	int ret = 0;
> > +
> > +	down_read(&dqopt->dqio_sem);
> > +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> > +		ret = -EINVAL;
> > +		goto out_unlock;
> > +	}
> > +
> > +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> > +	if (!info->dqi_priv) {
> > +		ret = -ENOMEM;
> > +		goto out_unlock;
> > +	}
> > +
> > +	/*
> > +	 * Used space is stored as unsigned 64-bit value in bytes but
> > +	 * quota core supports only signed 64-bit values so use that
> > +	 * as a limit
> > +	 */
> > +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> > +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> > +
> > +	info->dqi_bgrace = MAX_DQ_TIME;
> > +	info->dqi_igrace = MAX_IQ_TIME;
> > +	info->dqi_flags = 0;
> > +
> > +out_unlock:
> > +	up_read(&dqopt->dqio_sem);
> > +	return ret;
> > +}
> > +
> > +static int mem_write_file_info(struct super_block *sb, int type)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 0;
> > +}
> > +
> > +/*
> > + * Free all the quota_id entries in the rb tree and rb_root.
> > + */
> > +static int mem_free_file_info(struct super_block *sb, int type)
> > +{
> > +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> > +	struct rb_root *root = info->dqi_priv;
> > +	struct quota_id *entry;
> > +	struct rb_node *node;
> > +
> > +	info->dqi_priv = NULL;
> > +	node = rb_first(root);
> > +	while (node) {
> > +		entry = rb_entry(node, struct quota_id, node);
> > +		node = rb_next(&entry->node);
> > +
> > +		rb_erase(&entry->node, root);
> > +		kfree(entry);
> > +	}
> > +
> > +	kfree(root);
> > +	return 0;
> > +}
> > +
> > +/*
> > + * There is no real quota file, nothing to read. Just insert the id in
> > + * the rb tree.
> > + */
> > +static int mem_read_dquot(struct dquot *dquot)
> > +{
> > +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> > +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> > +	struct rb_node *parent = NULL, *new_node = NULL;
> > +	struct quota_id *new_entry, *entry;
> > +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> > +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> > +	int ret = 0;
> > +
> > +	down_write(&dqopt->dqio_sem);
> > +
> > +	while (*n) {
> > +		parent = *n;
> > +		entry = rb_entry(parent, struct quota_id, node);
> > +
> > +		if (id < entry->id)
> > +			n = &(*n)->rb_left;
> > +		else if (id > entry->id)
> > +			n = &(*n)->rb_right;
> > +		else
> > +			goto out_unlock;
> > +	}
> > +
> > +	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
> > +	if (!new_entry) {
> > +		ret = -ENOMEM;
> > +		goto out_unlock;
> > +	}
> > +
> > +	new_entry->id = id;
> > +	new_node = &new_entry->node;
> > +	rb_link_node(new_node, parent, n);
> > +	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
> > +	dquot->dq_off = 1;
> > +	/*
> > +	 * Make sure dquot is never released by a shrinker because we
> > +	 * rely on quota infrastructure to store mem_dqblk in dquot.
> > +	 */
> > +	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
> > +	set_bit(DQ_FAKE_B, &dquot->dq_flags);
> > +
> > +out_unlock:
> > +	up_write(&dqopt->dqio_sem);
> > +	return ret;
> > +}
> > +
> > +static int mem_write_dquot(struct dquot *dquot)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 0;
> > +}
> > +
> > +static int mem_release_dquot(struct dquot *dquot)
> > +{
> > +	/*
> > +	 * Everything is in memory only, release once we're done with
> > +	 * quota via mem_free_file_info().
> > +	 */
> > +	return 0;
> > +}
> > +
> > +static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
> > +{
> > +	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
> > +	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
> > +	qid_t id = from_kqid(&init_user_ns, *qid);
> > +	struct quota_info *dqopt = sb_dqopt(sb);
> > +	struct quota_id *entry = NULL;
> > +	int ret = 0;
> > +
> > +	down_read(&dqopt->dqio_sem);
> > +	while (node) {
> > +		entry = rb_entry(node, struct quota_id, node);
> > +
> > +		if (id < entry->id)
> > +			node = node->rb_left;
> > +		else if (id > entry->id)
> > +			node = node->rb_right;
> > +		else
> > +			goto got_next_id;
> > +	}
> > +
> > +	if (!entry) {
> > +		ret = -ENOENT;
> > +		goto out_unlock;
> > +	}
> > +
> > +	if (id > entry->id) {
> > +		node = rb_next(&entry->node);
> > +		if (!node) {
> > +			ret = -ENOENT;
> > +			goto out_unlock;
> > +		}
> > +		entry = rb_entry(node, struct quota_id, node);
> > +	}
> > +
> > +got_next_id:
> > +	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
> > +out_unlock:
> > +	up_read(&dqopt->dqio_sem);
> > +	return ret;
> > +}
> > +
> > +static const struct quota_format_ops mem_format_ops = {
> > +	.check_quota_file	= mem_check_quota_file,
> > +	.read_file_info		= mem_read_file_info,
> > +	.write_file_info	= mem_write_file_info,
> > +	.free_file_info		= mem_free_file_info,
> > +	.read_dqblk		= mem_read_dquot,
> > +	.commit_dqblk		= mem_write_dquot,
> > +	.release_dqblk		= mem_release_dquot,
> > +	.get_next_id		= mem_get_next_id,
> > +};
> > +
> > +static struct quota_format_type mem_quota_format = {
> > +	.qf_fmt_id	= QFMT_MEM_ONLY,
> > +	.qf_ops		= &mem_format_ops,
> > +	.qf_owner	= THIS_MODULE
> > +};
> > +
> > +static int __init init_mem_quota_format(void)
> > +{
> > +	return register_quota_format(&mem_quota_format);
> > +}
> > +
> > +static void __exit exit_mem_quota_format(void)
> > +{
> > +	unregister_quota_format(&mem_quota_format);
> > +}
> > +
> > +module_init(init_mem_quota_format);
> > +module_exit(exit_mem_quota_format);
> > diff --git a/include/linux/quota.h b/include/linux/quota.h
> > index fd692b4a41d5..4398e05c8b72 100644
> > --- a/include/linux/quota.h
> > +++ b/include/linux/quota.h
> > @@ -285,7 +285,11 @@ static inline void dqstats_dec(unsigned int type)
> >  #define DQ_FAKE_B	3	/* no limits only usage */
> >  #define DQ_READ_B	4	/* dquot was read into memory */
> >  #define DQ_ACTIVE_B	5	/* dquot is active (dquot_release not called) */
> > -#define DQ_LASTSET_B	6	/* Following 6 bits (see QIF_) are reserved\
> > +#define DQ_NO_SHRINK_B	6	/* modified dquot (not DQ_FAKE_B) is never to
> > +				 * be released by a shrinker. It should remain
> > +				 * in memory until quotas are being disabled on
> > +				 * unmount. */
> > +#define DQ_LASTSET_B	7	/* Following 6 bits (see QIF_) are reserved\
> >  				 * for the mask of entries set via SETQUOTA\
> >  				 * quotactl. They are set under dq_data_lock\
> >  				 * and the quota format handling dquot can\
> > @@ -536,6 +540,7 @@ struct quota_module_name {
> >  	{QFMT_VFS_OLD, "quota_v1"},\
> >  	{QFMT_VFS_V0, "quota_v2"},\
> >  	{QFMT_VFS_V1, "quota_v2"},\
> > +	{QFMT_MEM_ONLY, "quota_mem"},\
> >  	{0, NULL}}
> >  
> >  #endif /* _QUOTA_ */
> > diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
> > index f17c9636a859..ee9d2bad00c7 100644
> > --- a/include/uapi/linux/quota.h
> > +++ b/include/uapi/linux/quota.h
> > @@ -77,6 +77,7 @@
> >  #define	QFMT_VFS_V0 2
> >  #define QFMT_OCFS2 3
> >  #define	QFMT_VFS_V1 4
> > +#define	QFMT_MEM_ONLY 5
> >  
> >  /* Size of block in which space limits are passed through the quota
> >   * interface */
> > -- 
> > 2.38.1
> > 
> 

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Christoph Hellwig]

On Mon, Nov 21, 2022 at 09:48:18AM -0800, Darrick J. Wong wrote:
> Would it be wise to "persist" dquot contents to a (private) tmpfs file
> to facilitate incore dquot reclaim?  The tmpfs file data can be paged
> out, or even punched if all the dquot records in that page go back to
> default settings.

That seems like a good idea for memory usage, but I think this might
also make the code much simpler, as that just requires fairly trivial
quota_read and quota_write methods in the shmem code instead of new
support for an in-memory quota file.

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Lukas Czerner]

On Tue, Nov 22, 2022 at 04:59:11AM -0800, Christoph Hellwig wrote:
> On Mon, Nov 21, 2022 at 09:48:18AM -0800, Darrick J. Wong wrote:
> > Would it be wise to "persist" dquot contents to a (private) tmpfs file
> > to facilitate incore dquot reclaim?  The tmpfs file data can be paged
> > out, or even punched if all the dquot records in that page go back to
> > default settings.
> 
> That seems like a good idea for memory usage, but I think this might
> also make the code much simpler, as that just requires fairly trivial
> quota_read and quota_write methods in the shmem code instead of new
> support for an in-memory quota file.

You mean like the implementation in the v1 ?

-Lukas

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 3351 bytes --]

Hi Lukas,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on jack-fs/for_next]
[also build test ERROR on linus/master v6.1-rc6 next-20221122]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Lukas-Czerner/shmem-user-and-group-quota-support-for-tmpfs/20221121-223006
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git for_next
patch link:    https://lore.kernel.org/r/20221121142854.91109-3-lczerner%40redhat.com
patch subject: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs
config: riscv-randconfig-r011-20221120
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project af8c49dc1ec44339d915d988ffe0f38da68ca0e7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/1d7fa75b27cff11f4a69cff07058d541c4bf8a9e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Lukas-Czerner/shmem-user-and-group-quota-support-for-tmpfs/20221121-223006
        git checkout 1d7fa75b27cff11f4a69cff07058d541c4bf8a9e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> mm/shmem.c:4354:11: error: casting from randomized structure pointer type 'struct inode *' to 'struct file *'
                           return (struct file *)inode;
                                  ^
   1 error generated.


vim +4354 mm/shmem.c

  4333	
  4334	static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, loff_t size,
  4335					       unsigned long flags, unsigned int i_flags)
  4336	{
  4337		struct inode *inode;
  4338		struct file *res;
  4339	
  4340		if (IS_ERR(mnt))
  4341			return ERR_CAST(mnt);
  4342	
  4343		if (size < 0 || size > MAX_LFS_FILESIZE)
  4344			return ERR_PTR(-EINVAL);
  4345	
  4346		if (shmem_acct_size(flags, size))
  4347			return ERR_PTR(-ENOMEM);
  4348	
  4349		inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
  4350					flags);
  4351		if (IS_ERR_OR_NULL(inode)) {
  4352			shmem_unacct_size(flags, size);
  4353			if (IS_ERR(inode))
> 4354				return (struct file *)inode;
  4355			return ERR_PTR(-ENOSPC);
  4356		}
  4357		inode->i_flags |= i_flags;
  4358		inode->i_size = size;
  4359		clear_nlink(inode);	/* It is unlinked */
  4360		res = ERR_PTR(ramfs_nommu_expand_for_mapping(inode, size));
  4361		if (!IS_ERR(res))
  4362			res = alloc_file_pseudo(inode, mnt, name, O_RDWR,
  4363					&shmem_file_operations);
  4364		if (IS_ERR(res))
  4365			iput(inode);
  4366		return res;
  4367	}
  4368	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 154382 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/riscv 6.1.0-rc4 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 16.0.0 (git://gitmirror/llvm_project af8c49dc1ec44339d915d988ffe0f38da68ca0e7)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=160000
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=160000
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=160000
CONFIG_RUST_IS_AVAILABLE=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_COMPILE_TEST=y
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_BUILD_SALT=""
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_IRQ_INJECTION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_SIM=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_ARCH_HAS_TICK_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_IDLE=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
# CONFIG_HIGH_RES_TIMERS is not set
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
# CONFIG_BPF_JIT is not set
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# end of BPF subsystem

CONFIG_PREEMPT_BUILD=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
# CONFIG_FORCE_TASKS_RCU is not set
CONFIG_TASKS_RCU=y
# CONFIG_FORCE_TASKS_RUDE_RCU is not set
# CONFIG_FORCE_TASKS_TRACE_RCU is not set
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_BOOST is not set
CONFIG_RCU_NOCB_CPU=y
# CONFIG_RCU_NOCB_CPU_DEFAULT_ALL is not set
# CONFIG_TASKS_TRACE_RCU_READ_MB is not set
# end of RCU Subsystem

CONFIG_IKCONFIG=m
# CONFIG_IKCONFIG_PROC is not set
# CONFIG_IKHEADERS is not set
CONFIG_GENERIC_SCHED_CLOCK=y

#
# Scheduler features
#
# end of Scheduler features

CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
# CONFIG_CGROUP_FAVOR_DYNMODS is not set
CONFIG_MEMCG=y
CONFIG_MEMCG_KMEM=y
# CONFIG_CGROUP_SCHED is not set
CONFIG_CGROUP_PIDS=y
# CONFIG_CGROUP_RDMA is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
CONFIG_RD_LZMA=y
# CONFIG_RD_XZ is not set
# CONFIG_RD_LZO is not set
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_EXPERT=y
# CONFIG_MULTIUSER is not set
CONFIG_SGETMASK_SYSCALL=y
# CONFIG_SYSFS_SYSCALL is not set
CONFIG_FHANDLE=y
# CONFIG_POSIX_TIMERS is not set
# CONFIG_PRINTK is not set
# CONFIG_BUG is not set
# CONFIG_ELF_CORE is not set
# CONFIG_BASE_FULL is not set
# CONFIG_FUTEX is not set
CONFIG_EPOLL=y
# CONFIG_SIGNALFD is not set
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
# CONFIG_AIO is not set
CONFIG_IO_URING=y
# CONFIG_ADVISE_SYSCALLS is not set
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_KCMP is not set
CONFIG_RSEQ=y
# CONFIG_DEBUG_RSEQ is not set
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
# CONFIG_PC104 is not set

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# end of Kernel Performance Events And Counters

# CONFIG_PROFILING is not set
# end of General setup

CONFIG_64BIT=y
CONFIG_RISCV=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=18
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=24
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
CONFIG_RISCV_SBI=y
CONFIG_MMU=y
CONFIG_PAGE_OFFSET=0xff60000000000000
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_CSUM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=5
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_RISCV_DMA_NONCOHERENT=y
CONFIG_AS_HAS_INSN=y

#
# SoC selection
#
# CONFIG_SOC_MICROCHIP_POLARFIRE is not set
# CONFIG_SOC_SIFIVE is not set
# CONFIG_SOC_STARFIVE is not set
# CONFIG_SOC_VIRT is not set
# end of SoC selection

#
# CPU errata selection
#
# CONFIG_ERRATA_SIFIVE is not set
# CONFIG_ERRATA_THEAD is not set
# end of CPU errata selection

#
# Platform type
#
# CONFIG_NONPORTABLE is not set
CONFIG_ARCH_RV64I=y
CONFIG_CMODEL_MEDLOW=y
# CONFIG_CMODEL_MEDANY is not set
CONFIG_MODULE_SECTIONS=y
CONFIG_SMP=y
CONFIG_NR_CPUS=8
# CONFIG_HOTPLUG_CPU is not set
CONFIG_TUNE_GENERIC=y
# CONFIG_NUMA is not set
CONFIG_RISCV_ALTERNATIVE=y
CONFIG_RISCV_ISA_C=y
CONFIG_RISCV_ISA_SVPBMT=y
CONFIG_TOOLCHAIN_HAS_ZICBOM=y
CONFIG_RISCV_ISA_ZICBOM=y
CONFIG_TOOLCHAIN_HAS_ZIHINTPAUSE=y
CONFIG_FPU=y
# end of Platform type

#
# Kernel features
#
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_RISCV_SBI_V01 is not set
# CONFIG_RISCV_BOOT_SPINWAIT is not set
# CONFIG_KEXEC is not set
# CONFIG_KEXEC_FILE is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_COMPAT=y
# end of Kernel features

#
# Boot options
#
CONFIG_CMDLINE=""
CONFIG_EFI_STUB=y
CONFIG_EFI=y
# end of Boot options

CONFIG_PORTABLE=y

#
# Power management options
#
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
CONFIG_PM_CLK=y
CONFIG_PM_GENERIC_DOMAINS=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_PM_GENERIC_DOMAINS_OF=y
# end of Power management options

#
# CPU Power Management
#

#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# end of CPU Idle
# end of CPU Power Management

# CONFIG_VIRTUALIZATION is not set

#
# General architecture-dependent options
#
# CONFIG_KPROBES is not set
# CONFIG_JUMP_LABEL is not set
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=18
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y

#
# GCOV-based kernel profiling
#
CONFIG_GCOV_KERNEL=y
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=1
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
CONFIG_MODVERSIONS=y
CONFIG_ASM_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_MODULE_SIG is not set
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
# CONFIG_BLOCK is not set
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_MMIOWB=y
CONFIG_MMIOWB=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
# CONFIG_BINFMT_SCRIPT is not set
CONFIG_ARCH_HAS_BINFMT_FLAT=y
# CONFIG_BINFMT_FLAT is not set
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#

#
# SLAB allocator options
#
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLUB_STATS is not set
CONFIG_SLUB_CPU_PARTIAL=y
# end of SLAB allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
# CONFIG_COMPACTION is not set
# CONFIG_PAGE_REPORTING is not set
CONFIG_PHYS_ADDR_T_64BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANTS_THP_SWAP=y
# CONFIG_TRANSPARENT_HUGEPAGE is not set
# CONFIG_CMA is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ZONE_DMA32=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_SECRETMEM=y
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

# CONFIG_NET is not set

#
# Device Drivers
#
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_DOMAINS_GENERIC=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIEAER_INJECT=y
# CONFIG_PCIE_ECRC is not set
# CONFIG_PCIEASPM is not set
CONFIG_PCIE_PME=y
CONFIG_PCIE_DPC=y
CONFIG_PCIE_PTM=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_PCI_QUIRKS is not set
CONFIG_PCI_DEBUG=y
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=m
CONFIG_PCI_PF_STUB=y
CONFIG_PCI_ATS=y
CONFIG_PCI_IOV=y
# CONFIG_PCI_PRI is not set
CONFIG_PCI_PASID=y
# CONFIG_PCIE_BUS_TUNE_OFF is not set
CONFIG_PCIE_BUS_DEFAULT=y
# CONFIG_PCIE_BUS_SAFE is not set
# CONFIG_PCIE_BUS_PERFORMANCE is not set
# CONFIG_PCIE_BUS_PEER2PEER is not set
# CONFIG_VGA_ARB is not set
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set

#
# PCI controller drivers
#
# CONFIG_PCI_AARDVARK is not set
# CONFIG_PCIE_XILINX_NWL is not set
# CONFIG_PCI_FTPCI100 is not set
# CONFIG_PCI_TEGRA is not set
# CONFIG_PCIE_RCAR_HOST is not set
# CONFIG_PCI_HOST_GENERIC is not set
# CONFIG_PCIE_XILINX is not set
# CONFIG_PCIE_XILINX_CPM is not set
# CONFIG_PCI_XGENE is not set
# CONFIG_PCI_V3_SEMI is not set
# CONFIG_PCI_VERSATILE is not set
# CONFIG_PCIE_ALTERA is not set
# CONFIG_PCI_HOST_THUNDER_PEM is not set
# CONFIG_PCI_HOST_THUNDER_ECAM is not set
# CONFIG_PCIE_ROCKCHIP_HOST is not set
# CONFIG_PCIE_MEDIATEK is not set
# CONFIG_PCIE_MEDIATEK_GEN3 is not set
# CONFIG_PCIE_BRCMSTB is not set
# CONFIG_PCIE_MICROCHIP_HOST is not set
# CONFIG_PCIE_APPLE is not set
# CONFIG_PCIE_MT7621 is not set

#
# DesignWare PCI Core Support
#
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCI_EXYNOS is not set
# CONFIG_PCI_IMX6 is not set
# CONFIG_PCIE_SPEAR13XX is not set
# CONFIG_PCI_KEYSTONE_HOST is not set
# CONFIG_PCI_LAYERSCAPE is not set
# CONFIG_PCI_HISI is not set
# CONFIG_PCIE_QCOM is not set
# CONFIG_PCIE_ARMADA_8K is not set
# CONFIG_PCIE_ARTPEC6_HOST is not set
# CONFIG_PCIE_ROCKCHIP_DW_HOST is not set
# CONFIG_PCIE_INTEL_GW is not set
# CONFIG_PCIE_KEEMBAY_HOST is not set
# CONFIG_PCIE_KIRIN is not set
# CONFIG_PCIE_HISI_STB is not set
# CONFIG_PCI_MESON is not set
# CONFIG_PCIE_TEGRA194_HOST is not set
# CONFIG_PCIE_VISCONTI_HOST is not set
# CONFIG_PCIE_UNIPHIER is not set
# CONFIG_PCIE_AL is not set
# CONFIG_PCIE_FU740 is not set
# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#
# CONFIG_PCIE_MOBIVEIL_PLAT is not set
# CONFIG_PCIE_LAYERSCAPE_GEN4 is not set
# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#
# CONFIG_PCIE_CADENCE_PLAT_HOST is not set
# CONFIG_PCI_J721E_HOST is not set
# end of Cadence PCIe controllers support
# end of PCI controller drivers

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
CONFIG_PCI_SW_SWITCHTEC=y
# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=m
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
# CONFIG_FW_LOADER_COMPRESS is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

# CONFIG_ALLOW_DEV_COREDUMP is not set
CONFIG_DEBUG_DRIVER=y
CONFIG_DEBUG_DEVRES=y
CONFIG_DEBUG_TEST_DRIVER_REMOVE=y
CONFIG_TEST_ASYNC_DRIVER_PROBE=m
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_SPMI=y
CONFIG_REGMAP_W1=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
CONFIG_DMA_FENCE_TRACE=y
CONFIG_GENERIC_ARCH_TOPOLOGY=y
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_ARM_INTEGRATOR_LM is not set
# CONFIG_BT1_APB is not set
# CONFIG_BT1_AXI is not set
# CONFIG_MOXTET is not set
# CONFIG_HISILICON_LPC is not set
# CONFIG_INTEL_IXP4XX_EB is not set
# CONFIG_QCOM_EBI2 is not set
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# CONFIG_ARM_SCMI_PROTOCOL is not set
CONFIG_ARM_SCMI_POWER_DOMAIN=y
# CONFIG_ARM_SCMI_POWER_CONTROL is not set
# end of ARM System Control and Management Interface Protocol

# CONFIG_ARM_SCPI_PROTOCOL is not set
CONFIG_ARM_SCPI_POWER_DOMAIN=y
# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_TURRIS_MOX_RWTM is not set
# CONFIG_BCM47XX_NVRAM is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_ESRT=y
CONFIG_EFI_PARAMS_FROM_FDT=y
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_EFI_GENERIC_STUB=y
# CONFIG_EFI_ZBOOT is not set
# CONFIG_EFI_BOOTLOADER_CONTROL is not set
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
# CONFIG_RESET_ATTACK_MITIGATION is not set
# CONFIG_EFI_RCI2_TABLE is not set
# CONFIG_EFI_DISABLE_PCI_DMA is not set
# CONFIG_EFI_DISABLE_RUNTIME is not set
# CONFIG_EFI_COCO_SECRET is not set
# end of EFI (Extensible Firmware Interface) Support

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
CONFIG_OF_UNITTEST=y
# CONFIG_OF_ALL_DTBS is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_DYNAMIC=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
CONFIG_OF_RESOLVE=y
CONFIG_OF_OVERLAY=y
CONFIG_OF_DMA_DEFAULT_COHERENT=y
CONFIG_PARPORT=m
# CONFIG_PARPORT_PC is not set
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set

#
# NVME Support
#
# end of NVME Support

#
# Misc devices
#
CONFIG_AD525X_DPOT=y
CONFIG_AD525X_DPOT_I2C=m
CONFIG_AD525X_DPOT_SPI=y
CONFIG_DUMMY_IRQ=m
CONFIG_PHANTOM=m
CONFIG_TIFM_CORE=m
# CONFIG_TIFM_7XX1 is not set
CONFIG_ICS932S401=y
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_GEHC_ACHC is not set
# CONFIG_HI6421V600_IRQ is not set
CONFIG_HP_ILO=y
# CONFIG_QCOM_COINCELL is not set
# CONFIG_QCOM_FASTRPC is not set
CONFIG_APDS9802ALS=y
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=y
CONFIG_SENSORS_BH1770=y
# CONFIG_SENSORS_APDS990X is not set
CONFIG_HMC6352=m
# CONFIG_DS1682 is not set
# CONFIG_PCH_PHUB is not set
CONFIG_LATTICE_ECP3_CONFIG=m
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
CONFIG_PCI_ENDPOINT_TEST=m
# CONFIG_XILINX_SDFEC is not set
# CONFIG_OPEN_DICE is not set
# CONFIG_VCPU_STALL_DETECTOR is not set
CONFIG_C2PORT=y

#
# EEPROM support
#
CONFIG_EEPROM_AT24=m
CONFIG_EEPROM_AT25=m
CONFIG_EEPROM_LEGACY=y
CONFIG_EEPROM_MAX6875=y
# CONFIG_EEPROM_93CX6 is not set
CONFIG_EEPROM_93XX46=m
CONFIG_EEPROM_IDT_89HPESX=y
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

CONFIG_CB710_CORE=m
CONFIG_CB710_DEBUG=y
CONFIG_CB710_DEBUG_ASSUMPTIONS=y

#
# Texas Instruments shared transport line discipline
#
# end of Texas Instruments shared transport line discipline

CONFIG_ALTERA_STAPL=m
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_HABANA_AI is not set
# CONFIG_PVPANIC is not set
# CONFIG_GP_PCI1XXXX is not set
# end of Misc devices

#
# SCSI device support
#
# end of SCSI device support

# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=y
# CONFIG_FIREWIRE_OHCI is not set
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

#
# Input device support
#
# CONFIG_INPUT is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
CONFIG_GAMEPORT=m
CONFIG_GAMEPORT_NS558=m
CONFIG_GAMEPORT_L4=m
# CONFIG_GAMEPORT_EMU10K1 is not set
CONFIG_GAMEPORT_FM801=m
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
# CONFIG_TTY is not set
CONFIG_SERIAL_DEV_BUS=y
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_PLAT_DATA=y
# CONFIG_IPMI_PANIC_EVENT is not set
# CONFIG_IPMI_DEVICE_INTERFACE is not set
CONFIG_IPMI_SI=m
CONFIG_IPMI_SSIF=m
# CONFIG_IPMI_IPMB is not set
# CONFIG_IPMI_WATCHDOG is not set
CONFIG_IPMI_POWEROFF=m
# CONFIG_ASPEED_KCS_IPMI_BMC is not set
# CONFIG_NPCM7XX_KCS_IPMI_BMC is not set
# CONFIG_ASPEED_BT_IPMI_BMC is not set
# CONFIG_IPMB_DEVICE_INTERFACE is not set
# CONFIG_HW_RANDOM is not set
CONFIG_APPLICOM=y
# CONFIG_DEVMEM is not set
# CONFIG_DEVPORT is not set
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS_CORE=y
# CONFIG_TCG_TIS is not set
CONFIG_TCG_TIS_SPI=y
# CONFIG_TCG_TIS_SPI_CR50 is not set
# CONFIG_TCG_TIS_I2C is not set
# CONFIG_TCG_TIS_SYNQUACER is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=y
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_VTPM_PROXY=m
CONFIG_TCG_TIS_ST33ZP24=y
CONFIG_TCG_TIS_ST33ZP24_I2C=y
CONFIG_TCG_TIS_ST33ZP24_SPI=m
CONFIG_XILLYBUS_CLASS=y
CONFIG_XILLYBUS=y
CONFIG_XILLYBUS_PCIE=m
CONFIG_XILLYBUS_OF=m
CONFIG_RANDOM_TRUST_CPU=y
CONFIG_RANDOM_TRUST_BOOTLOADER=y
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=y

#
# Multiplexer I2C Chip support
#
CONFIG_I2C_ARB_GPIO_CHALLENGE=m
CONFIG_I2C_MUX_GPIO=m
CONFIG_I2C_MUX_GPMUX=m
# CONFIG_I2C_MUX_LTC4306 is not set
CONFIG_I2C_MUX_PCA9541=y
# CONFIG_I2C_MUX_PCA954x is not set
CONFIG_I2C_MUX_PINCTRL=m
CONFIG_I2C_MUX_REG=y
CONFIG_I2C_DEMUX_PINCTRL=y
CONFIG_I2C_MUX_MLXCPLD=y
# end of Multiplexer I2C Chip support

# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_SMBUS=m

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=y
# CONFIG_I2C_ALGOPCF is not set
CONFIG_I2C_ALGOPCA=m
# end of I2C Algorithms

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
CONFIG_I2C_ALI1563=m
# CONFIG_I2C_ALI15X3 is not set
CONFIG_I2C_AMD756=m
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_HIX5HD2 is not set
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=y
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
CONFIG_I2C_SIS5595=m
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
CONFIG_I2C_VIAPRO=y

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_ALTERA is not set
# CONFIG_I2C_ASPEED is not set
# CONFIG_I2C_AT91 is not set
# CONFIG_I2C_AXXIA is not set
# CONFIG_I2C_BCM2835 is not set
# CONFIG_I2C_BCM_IPROC is not set
# CONFIG_I2C_BCM_KONA is not set
CONFIG_I2C_BRCMSTB=y
# CONFIG_I2C_CADENCE is not set
CONFIG_I2C_CBUS_GPIO=y
# CONFIG_I2C_DAVINCI is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=m
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_DIGICOLOR is not set
# CONFIG_I2C_EG20T is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_EXYNOS5 is not set
CONFIG_I2C_GPIO=y
# CONFIG_I2C_GPIO_FAULT_INJECTOR is not set
# CONFIG_I2C_HIGHLANDER is not set
# CONFIG_I2C_HISI is not set
# CONFIG_I2C_IMG is not set
# CONFIG_I2C_IMX is not set
# CONFIG_I2C_IMX_LPI2C is not set
# CONFIG_I2C_IOP3XX is not set
# CONFIG_I2C_JZ4780 is not set
# CONFIG_I2C_KEMPLD is not set
# CONFIG_I2C_LPC2K is not set
# CONFIG_I2C_MESON is not set
# CONFIG_I2C_MICROCHIP_CORE is not set
# CONFIG_I2C_MT65XX is not set
# CONFIG_I2C_MT7621 is not set
# CONFIG_I2C_MV64XXX is not set
# CONFIG_I2C_MXS is not set
# CONFIG_I2C_NPCM is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_OMAP is not set
# CONFIG_I2C_OWL is not set
# CONFIG_I2C_APPLE is not set
CONFIG_I2C_PCA_PLATFORM=m
# CONFIG_I2C_PNX is not set
# CONFIG_I2C_PXA is not set
# CONFIG_I2C_QCOM_CCI is not set
# CONFIG_I2C_QUP is not set
# CONFIG_I2C_RIIC is not set
CONFIG_I2C_RK3X=m
# CONFIG_I2C_RZV2M is not set
# CONFIG_I2C_S3C2410 is not set
# CONFIG_I2C_SH_MOBILE is not set
CONFIG_I2C_SIMTEC=y
# CONFIG_I2C_SPRD is not set
# CONFIG_I2C_ST is not set
# CONFIG_I2C_STM32F4 is not set
# CONFIG_I2C_STM32F7 is not set
# CONFIG_I2C_SYNQUACER is not set
# CONFIG_I2C_TEGRA is not set
# CONFIG_I2C_TEGRA_BPMP is not set
# CONFIG_I2C_UNIPHIER is not set
# CONFIG_I2C_UNIPHIER_F is not set
# CONFIG_I2C_VERSATILE is not set
# CONFIG_I2C_WMT is not set
# CONFIG_I2C_THUNDERX is not set
# CONFIG_I2C_XILINX is not set
# CONFIG_I2C_XLP9XX is not set
# CONFIG_I2C_RCAR is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PCI1XXXX is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_MLXCPLD is not set
CONFIG_I2C_FSI=m
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

# CONFIG_I2C_STUB is not set
CONFIG_I2C_SLAVE=y
# CONFIG_I2C_SLAVE_EEPROM is not set
# CONFIG_I2C_SLAVE_TESTUNIT is not set
# CONFIG_I2C_DEBUG_CORE is not set
CONFIG_I2C_DEBUG_ALGO=y
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
CONFIG_SPI_ALTERA=m
CONFIG_SPI_ALTERA_CORE=m
# CONFIG_SPI_ALTERA_DFL is not set
# CONFIG_SPI_AR934X is not set
# CONFIG_SPI_ATH79 is not set
# CONFIG_SPI_ARMADA_3700 is not set
# CONFIG_SPI_ASPEED_SMC is not set
# CONFIG_SPI_ATMEL is not set
# CONFIG_SPI_ATMEL_QUADSPI is not set
CONFIG_SPI_AXI_SPI_ENGINE=y
# CONFIG_SPI_BCM2835 is not set
# CONFIG_SPI_BCM2835AUX is not set
# CONFIG_SPI_BCM63XX is not set
# CONFIG_SPI_BCM63XX_HSSPI is not set
# CONFIG_SPI_BCM_QSPI is not set
CONFIG_SPI_BITBANG=y
CONFIG_SPI_BUTTERFLY=m
CONFIG_SPI_CADENCE=y
# CONFIG_SPI_CADENCE_QUADSPI is not set
# CONFIG_SPI_CLPS711X is not set
CONFIG_SPI_DESIGNWARE=y
# CONFIG_SPI_DW_DMA is not set
CONFIG_SPI_DW_PCI=y
# CONFIG_SPI_DW_MMIO is not set
# CONFIG_SPI_DW_BT1 is not set
# CONFIG_SPI_EP93XX is not set
# CONFIG_SPI_FSI is not set
# CONFIG_SPI_FSL_LPSPI is not set
# CONFIG_SPI_FSL_QUADSPI is not set
# CONFIG_SPI_GXP is not set
# CONFIG_SPI_HISI_KUNPENG is not set
# CONFIG_SPI_HISI_SFC_V3XX is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
CONFIG_SPI_GPIO=m
# CONFIG_SPI_IMG_SPFI is not set
# CONFIG_SPI_IMX is not set
# CONFIG_SPI_INGENIC is not set
# CONFIG_SPI_JCORE is not set
CONFIG_SPI_LM70_LLP=m
# CONFIG_SPI_LP8841_RTC is not set
CONFIG_SPI_FSL_LIB=y
CONFIG_SPI_FSL_SPI=y
# CONFIG_SPI_FSL_DSPI is not set
# CONFIG_SPI_MESON_SPICC is not set
# CONFIG_SPI_MESON_SPIFC is not set
# CONFIG_SPI_MICROCHIP_CORE is not set
# CONFIG_SPI_MICROCHIP_CORE_QSPI is not set
# CONFIG_SPI_MT65XX is not set
# CONFIG_SPI_MT7621 is not set
# CONFIG_SPI_MTK_NOR is not set
# CONFIG_SPI_NPCM_FIU is not set
# CONFIG_SPI_NPCM_PSPI is not set
# CONFIG_SPI_LANTIQ_SSC is not set
CONFIG_SPI_OC_TINY=y
# CONFIG_SPI_OMAP24XX is not set
# CONFIG_SPI_TI_QSPI is not set
# CONFIG_SPI_OMAP_100K is not set
# CONFIG_SPI_ORION is not set
# CONFIG_SPI_PIC32 is not set
# CONFIG_SPI_PIC32_SQI is not set
# CONFIG_SPI_PXA2XX is not set
CONFIG_SPI_ROCKCHIP=y
# CONFIG_SPI_ROCKCHIP_SFC is not set
# CONFIG_SPI_RSPI is not set
# CONFIG_SPI_QUP is not set
# CONFIG_SPI_S3C64XX is not set
CONFIG_SPI_SC18IS602=m
# CONFIG_SPI_SH_MSIOF is not set
# CONFIG_SPI_SH is not set
# CONFIG_SPI_SH_HSPI is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_SLAVE_MT27XX is not set
# CONFIG_SPI_SPRD is not set
# CONFIG_SPI_SPRD_ADI is not set
# CONFIG_SPI_STM32 is not set
# CONFIG_SPI_ST_SSC4 is not set
# CONFIG_SPI_SUN4I is not set
# CONFIG_SPI_SUNPLUS_SP7021 is not set
# CONFIG_SPI_SYNQUACER is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_THUNDERX is not set
# CONFIG_SPI_TOPCLIFF_PCH is not set
# CONFIG_SPI_UNIPHIER is not set
# CONFIG_SPI_XCOMM is not set
CONFIG_SPI_XILINX=m
# CONFIG_SPI_XLP is not set
# CONFIG_SPI_XTENSA_XTFPGA is not set
# CONFIG_SPI_ZYNQ_QSPI is not set
CONFIG_SPI_ZYNQMP_GQSPI=y
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
# CONFIG_SPI_LOOPBACK_TEST is not set
CONFIG_SPI_TLE62X0=y
CONFIG_SPI_SLAVE=y
# CONFIG_SPI_SLAVE_TIME is not set
# CONFIG_SPI_SLAVE_SYSTEM_CONTROL is not set
CONFIG_SPI_DYNAMIC=y
CONFIG_SPMI=y
# CONFIG_SPMI_HISI3670 is not set
# CONFIG_SPMI_MSM_PMIC_ARB is not set
# CONFIG_SPMI_MTK_PMIF is not set
CONFIG_HSI=y
CONFIG_HSI_BOARDINFO=y

#
# HSI controllers
#

#
# HSI clients
#
CONFIG_HSI_CHAR=y
# CONFIG_PPS is not set

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_GENERIC_PINCTRL_GROUPS=y
CONFIG_PINMUX=y
CONFIG_GENERIC_PINMUX_FUNCTIONS=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
CONFIG_DEBUG_PINCTRL=y
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_AT91PIO4 is not set
CONFIG_PINCTRL_AXP209=m
# CONFIG_PINCTRL_BM1880 is not set
# CONFIG_PINCTRL_CY8C95X0 is not set
# CONFIG_PINCTRL_DA850_PUPD is not set
# CONFIG_PINCTRL_EQUILIBRIUM is not set
# CONFIG_PINCTRL_INGENIC is not set
# CONFIG_PINCTRL_LPC18XX is not set
# CONFIG_PINCTRL_MAX77620 is not set
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_MICROCHIP_SGPIO is not set
# CONFIG_PINCTRL_OCELOT is not set
# CONFIG_PINCTRL_PISTACHIO is not set
CONFIG_PINCTRL_RK805=m
# CONFIG_PINCTRL_ROCKCHIP is not set
CONFIG_PINCTRL_SINGLE=y
# CONFIG_PINCTRL_STMFX is not set
CONFIG_PINCTRL_SX150X=y
# CONFIG_PINCTRL_OWL is not set
# CONFIG_PINCTRL_ASPEED_G4 is not set
# CONFIG_PINCTRL_ASPEED_G5 is not set
# CONFIG_PINCTRL_ASPEED_G6 is not set
# CONFIG_PINCTRL_BCM281XX is not set
# CONFIG_PINCTRL_BCM2835 is not set
# CONFIG_PINCTRL_BCM4908 is not set
# CONFIG_PINCTRL_BCM6318 is not set
# CONFIG_PINCTRL_BCM6328 is not set
# CONFIG_PINCTRL_BCM6358 is not set
# CONFIG_PINCTRL_BCM6362 is not set
# CONFIG_PINCTRL_BCM6368 is not set
# CONFIG_PINCTRL_BCM63268 is not set
# CONFIG_PINCTRL_IPROC_GPIO is not set
# CONFIG_PINCTRL_CYGNUS_MUX is not set
# CONFIG_PINCTRL_NS is not set
# CONFIG_PINCTRL_NSP_GPIO is not set
# CONFIG_PINCTRL_NS2_MUX is not set
# CONFIG_PINCTRL_NSP_MUX is not set
# CONFIG_PINCTRL_AS370 is not set
# CONFIG_PINCTRL_BERLIN_BG4CT is not set
CONFIG_PINCTRL_MADERA=m

#
# Intel pinctrl drivers
#
# end of Intel pinctrl drivers

#
# MediaTek pinctrl drivers
#
# CONFIG_EINT_MTK is not set
# CONFIG_PINCTRL_MT2701 is not set
# CONFIG_PINCTRL_MT7623 is not set
# CONFIG_PINCTRL_MT7629 is not set
# CONFIG_PINCTRL_MT8135 is not set
# CONFIG_PINCTRL_MT8127 is not set
# CONFIG_PINCTRL_MT2712 is not set
# CONFIG_PINCTRL_MT6765 is not set
# CONFIG_PINCTRL_MT6779 is not set
# CONFIG_PINCTRL_MT6795 is not set
# CONFIG_PINCTRL_MT6797 is not set
# CONFIG_PINCTRL_MT7622 is not set
# CONFIG_PINCTRL_MT7986 is not set
# CONFIG_PINCTRL_MT8167 is not set
# CONFIG_PINCTRL_MT8173 is not set
# CONFIG_PINCTRL_MT8183 is not set
# CONFIG_PINCTRL_MT8186 is not set
# CONFIG_PINCTRL_MT8188 is not set
# CONFIG_PINCTRL_MT8192 is not set
# CONFIG_PINCTRL_MT8195 is not set
# CONFIG_PINCTRL_MT8365 is not set
# CONFIG_PINCTRL_MT8516 is not set
# CONFIG_PINCTRL_MT6397 is not set
# end of MediaTek pinctrl drivers

CONFIG_PINCTRL_MESON=y
# CONFIG_PINCTRL_WPCM450 is not set
# CONFIG_PINCTRL_NPCM7XX is not set
# CONFIG_PINCTRL_PXA25X is not set
# CONFIG_PINCTRL_PXA27X is not set
# CONFIG_PINCTRL_MSM is not set
# CONFIG_PINCTRL_QCOM_SPMI_PMIC is not set
# CONFIG_PINCTRL_QCOM_SSBI_PMIC is not set
# CONFIG_PINCTRL_LPASS_LPI is not set

#
# Renesas pinctrl drivers
#
# CONFIG_PINCTRL_RENESAS is not set
# CONFIG_PINCTRL_PFC_EMEV2 is not set
# CONFIG_PINCTRL_PFC_R8A77995 is not set
# CONFIG_PINCTRL_PFC_R8A7794 is not set
# CONFIG_PINCTRL_PFC_R8A77990 is not set
# CONFIG_PINCTRL_PFC_R8A7779 is not set
# CONFIG_PINCTRL_PFC_R8A7790 is not set
# CONFIG_PINCTRL_PFC_R8A77950 is not set
# CONFIG_PINCTRL_PFC_R8A77951 is not set
# CONFIG_PINCTRL_PFC_R8A7778 is not set
# CONFIG_PINCTRL_PFC_R8A7793 is not set
# CONFIG_PINCTRL_PFC_R8A7791 is not set
# CONFIG_PINCTRL_PFC_R8A77965 is not set
# CONFIG_PINCTRL_PFC_R8A77960 is not set
# CONFIG_PINCTRL_PFC_R8A77961 is not set
# CONFIG_PINCTRL_PFC_R8A779F0 is not set
# CONFIG_PINCTRL_PFC_R8A7792 is not set
# CONFIG_PINCTRL_PFC_R8A77980 is not set
# CONFIG_PINCTRL_PFC_R8A77970 is not set
# CONFIG_PINCTRL_PFC_R8A779A0 is not set
# CONFIG_PINCTRL_PFC_R8A779G0 is not set
# CONFIG_PINCTRL_PFC_R8A7740 is not set
# CONFIG_PINCTRL_PFC_R8A73A4 is not set
# CONFIG_PINCTRL_RZA1 is not set
# CONFIG_PINCTRL_RZA2 is not set
# CONFIG_PINCTRL_RZG2L is not set
# CONFIG_PINCTRL_PFC_R8A77470 is not set
# CONFIG_PINCTRL_PFC_R8A7745 is not set
# CONFIG_PINCTRL_PFC_R8A7742 is not set
# CONFIG_PINCTRL_PFC_R8A7743 is not set
# CONFIG_PINCTRL_PFC_R8A7744 is not set
# CONFIG_PINCTRL_PFC_R8A774C0 is not set
# CONFIG_PINCTRL_PFC_R8A774E1 is not set
# CONFIG_PINCTRL_PFC_R8A774A1 is not set
# CONFIG_PINCTRL_PFC_R8A774B1 is not set
# CONFIG_PINCTRL_RZN1 is not set
# CONFIG_PINCTRL_RZV2M is not set
# CONFIG_PINCTRL_PFC_SH7203 is not set
# CONFIG_PINCTRL_PFC_SH7264 is not set
# CONFIG_PINCTRL_PFC_SH7269 is not set
# CONFIG_PINCTRL_PFC_SH7720 is not set
# CONFIG_PINCTRL_PFC_SH7722 is not set
# CONFIG_PINCTRL_PFC_SH7734 is not set
# CONFIG_PINCTRL_PFC_SH7757 is not set
# CONFIG_PINCTRL_PFC_SH7785 is not set
# CONFIG_PINCTRL_PFC_SH7786 is not set
# CONFIG_PINCTRL_PFC_SH73A0 is not set
# CONFIG_PINCTRL_PFC_SH7723 is not set
# CONFIG_PINCTRL_PFC_SH7724 is not set
# CONFIG_PINCTRL_PFC_SHX3 is not set
# end of Renesas pinctrl drivers

# CONFIG_PINCTRL_EXYNOS is not set
# CONFIG_PINCTRL_S3C24XX is not set
# CONFIG_PINCTRL_S3C64XX is not set
# CONFIG_PINCTRL_SPRD_SC9860 is not set
# CONFIG_PINCTRL_STARFIVE_JH7100 is not set
# CONFIG_PINCTRL_STM32F429 is not set
# CONFIG_PINCTRL_STM32F469 is not set
# CONFIG_PINCTRL_STM32F746 is not set
# CONFIG_PINCTRL_STM32F769 is not set
# CONFIG_PINCTRL_STM32H743 is not set
# CONFIG_PINCTRL_STM32MP135 is not set
# CONFIG_PINCTRL_STM32MP157 is not set
# CONFIG_PINCTRL_TI_IODELAY is not set
CONFIG_PINCTRL_UNIPHIER=y
# CONFIG_PINCTRL_UNIPHIER_LD4 is not set
# CONFIG_PINCTRL_UNIPHIER_PRO4 is not set
# CONFIG_PINCTRL_UNIPHIER_SLD8 is not set
# CONFIG_PINCTRL_UNIPHIER_PRO5 is not set
# CONFIG_PINCTRL_UNIPHIER_PXS2 is not set
# CONFIG_PINCTRL_UNIPHIER_LD6B is not set
# CONFIG_PINCTRL_UNIPHIER_LD11 is not set
# CONFIG_PINCTRL_UNIPHIER_LD20 is not set
# CONFIG_PINCTRL_UNIPHIER_PXS3 is not set
# CONFIG_PINCTRL_UNIPHIER_NX1 is not set
# CONFIG_PINCTRL_TMPV7700 is not set
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_OF_GPIO=y
CONFIG_GPIOLIB_IRQCHIP=y
CONFIG_DEBUG_GPIO=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y
CONFIG_GPIO_GENERIC=y
CONFIG_GPIO_MAX730X=y

#
# Memory mapped GPIO drivers
#
CONFIG_GPIO_74XX_MMIO=y
CONFIG_GPIO_ALTERA=y
# CONFIG_GPIO_ASPEED is not set
# CONFIG_GPIO_ASPEED_SGPIO is not set
# CONFIG_GPIO_ATH79 is not set
# CONFIG_GPIO_RASPBERRYPI_EXP is not set
# CONFIG_GPIO_BCM_KONA is not set
# CONFIG_GPIO_BCM_XGS_IPROC is not set
# CONFIG_GPIO_BRCMSTB is not set
# CONFIG_GPIO_CADENCE is not set
# CONFIG_GPIO_CLPS711X is not set
CONFIG_GPIO_DWAPB=y
# CONFIG_GPIO_EIC_SPRD is not set
# CONFIG_GPIO_EM is not set
CONFIG_GPIO_FTGPIO010=y
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_GPIO_GRGPIO is not set
# CONFIG_GPIO_HISI is not set
CONFIG_GPIO_HLWD=y
# CONFIG_GPIO_IOP is not set
# CONFIG_GPIO_LOGICVC is not set
# CONFIG_GPIO_LPC18XX is not set
# CONFIG_GPIO_LPC32XX is not set
CONFIG_GPIO_MB86S7X=m
CONFIG_GPIO_MENZ127=y
# CONFIG_GPIO_MPC8XXX is not set
# CONFIG_GPIO_MT7621 is not set
# CONFIG_GPIO_MXC is not set
# CONFIG_GPIO_MXS is not set
# CONFIG_GPIO_PMIC_EIC_SPRD is not set
# CONFIG_GPIO_PXA is not set
# CONFIG_GPIO_RCAR is not set
# CONFIG_GPIO_RDA is not set
# CONFIG_GPIO_ROCKCHIP is not set
# CONFIG_GPIO_SAMA5D2_PIOBU is not set
# CONFIG_GPIO_SIFIVE is not set
# CONFIG_GPIO_SIOX is not set
# CONFIG_GPIO_SNPS_CREG is not set
# CONFIG_GPIO_SPRD is not set
# CONFIG_GPIO_STP_XWAY is not set
CONFIG_GPIO_SYSCON=y
# CONFIG_GPIO_TEGRA is not set
# CONFIG_GPIO_TEGRA186 is not set
# CONFIG_GPIO_TS4800 is not set
# CONFIG_GPIO_THUNDERX is not set
# CONFIG_GPIO_UNIPHIER is not set
# CONFIG_GPIO_VISCONTI is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_XGENE_SB is not set
# CONFIG_GPIO_XILINX is not set
# CONFIG_GPIO_XLP is not set
# CONFIG_GPIO_AMD_FCH is not set
# CONFIG_GPIO_IDT3243X is not set
# end of Memory mapped GPIO drivers

#
# I2C GPIO expanders
#
CONFIG_GPIO_ADNP=m
# CONFIG_GPIO_GW_PLD is not set
CONFIG_GPIO_MAX7300=m
CONFIG_GPIO_MAX732X=m
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
CONFIG_GPIO_PCF857X=m
CONFIG_GPIO_TPIC2810=y
# CONFIG_GPIO_TS4900 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# CONFIG_GPIO_ADP5520 is not set
# CONFIG_GPIO_ARIZONA is not set
CONFIG_GPIO_DA9052=y
CONFIG_GPIO_DA9055=y
CONFIG_GPIO_JANZ_TTL=m
# CONFIG_GPIO_KEMPLD is not set
# CONFIG_GPIO_LP3943 is not set
CONFIG_GPIO_LP87565=y
CONFIG_GPIO_MADERA=m
# CONFIG_GPIO_MAX77620 is not set
# CONFIG_GPIO_SL28CPLD is not set
CONFIG_GPIO_TPS65086=m
CONFIG_GPIO_TPS65218=m
# CONFIG_GPIO_TPS65912 is not set
# CONFIG_GPIO_TQMX86 is not set
# CONFIG_GPIO_TWL4030 is not set
CONFIG_GPIO_UCB1400=m
CONFIG_GPIO_WM8350=y
# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_MLXBF is not set
# CONFIG_GPIO_MLXBF2 is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCH is not set
CONFIG_GPIO_PCI_IDIO_16=m
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
CONFIG_GPIO_74X164=y
# CONFIG_GPIO_MAX3191X is not set
CONFIG_GPIO_MAX7301=y
CONFIG_GPIO_MC33880=y
CONFIG_GPIO_PISOSR=y
CONFIG_GPIO_XRA1403=m
# end of SPI GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
CONFIG_GPIO_MOCKUP=y
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

CONFIG_W1=y

#
# 1-wire Bus Masters
#
# CONFIG_W1_MASTER_MATROX is not set
CONFIG_W1_MASTER_DS2482=y
# CONFIG_W1_MASTER_MXC is not set
# CONFIG_W1_MASTER_DS1WM is not set
# CONFIG_W1_MASTER_GPIO is not set
# CONFIG_W1_MASTER_SGI is not set
# end of 1-wire Bus Masters

#
# 1-wire Slaves
#
CONFIG_W1_SLAVE_THERM=m
CONFIG_W1_SLAVE_SMEM=m
CONFIG_W1_SLAVE_DS2405=m
CONFIG_W1_SLAVE_DS2408=m
# CONFIG_W1_SLAVE_DS2408_READBACK is not set
CONFIG_W1_SLAVE_DS2413=m
CONFIG_W1_SLAVE_DS2406=y
CONFIG_W1_SLAVE_DS2423=y
CONFIG_W1_SLAVE_DS2805=y
# CONFIG_W1_SLAVE_DS2430 is not set
# CONFIG_W1_SLAVE_DS2431 is not set
CONFIG_W1_SLAVE_DS2433=m
CONFIG_W1_SLAVE_DS2433_CRC=y
CONFIG_W1_SLAVE_DS2438=y
# CONFIG_W1_SLAVE_DS250X is not set
CONFIG_W1_SLAVE_DS2780=y
CONFIG_W1_SLAVE_DS2781=y
CONFIG_W1_SLAVE_DS28E04=y
CONFIG_W1_SLAVE_DS28E17=m
# end of 1-wire Slaves

CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_BRCMKONA is not set
# CONFIG_POWER_RESET_BRCMSTB is not set
# CONFIG_POWER_RESET_GEMINI_POWEROFF is not set
CONFIG_POWER_RESET_GPIO=y
# CONFIG_POWER_RESET_GPIO_RESTART is not set
# CONFIG_POWER_RESET_OCELOT_RESET is not set
# CONFIG_POWER_RESET_PIIX4_POWEROFF is not set
# CONFIG_POWER_RESET_LTC2952 is not set
# CONFIG_POWER_RESET_REGULATOR is not set
CONFIG_POWER_RESET_RESTART=y
# CONFIG_POWER_RESET_TPS65086 is not set
# CONFIG_POWER_RESET_KEYSTONE is not set
CONFIG_POWER_RESET_SYSCON=y
CONFIG_POWER_RESET_SYSCON_POWEROFF=y
# CONFIG_POWER_RESET_RMOBILE is not set
# CONFIG_SYSCON_REBOOT_MODE is not set
# CONFIG_POWER_RESET_SC27XX is not set
# CONFIG_NVMEM_REBOOT_MODE is not set
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_SUPPLY_DEBUG=y
CONFIG_POWER_SUPPLY_HWMON=y
CONFIG_PDA_POWER=m
CONFIG_GENERIC_ADC_BATTERY=y
# CONFIG_IP5XXX_POWER is not set
# CONFIG_MAX8925_POWER is not set
# CONFIG_WM8350_POWER is not set
CONFIG_TEST_POWER=y
# CONFIG_BATTERY_88PM860X is not set
CONFIG_CHARGER_ADP5061=m
# CONFIG_BATTERY_ACT8945A is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2760 is not set
CONFIG_BATTERY_DS2780=m
CONFIG_BATTERY_DS2781=y
CONFIG_BATTERY_DS2782=y
CONFIG_BATTERY_LEGO_EV3=y
# CONFIG_BATTERY_SAMSUNG_SDI is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
CONFIG_MANAGER_SBS=m
# CONFIG_BATTERY_BQ27XXX is not set
CONFIG_BATTERY_DA9030=m
CONFIG_BATTERY_DA9052=m
CONFIG_CHARGER_AXP20X=m
# CONFIG_BATTERY_AXP20X is not set
CONFIG_AXP20X_POWER=m
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
CONFIG_BATTERY_MAX1721X=y
# CONFIG_BATTERY_TWL4030_MADC is not set
CONFIG_CHARGER_PCF50633=m
CONFIG_BATTERY_RX51=m
CONFIG_CHARGER_MAX8903=y
# CONFIG_CHARGER_TWL4030 is not set
# CONFIG_CHARGER_LP8727 is not set
CONFIG_CHARGER_GPIO=y
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX14577 is not set
CONFIG_CHARGER_DETECTOR_MAX14656=y
# CONFIG_CHARGER_MAX77693 is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_QCOM_SMBB is not set
CONFIG_CHARGER_BQ2415X=m
# CONFIG_CHARGER_BQ24190 is not set
CONFIG_CHARGER_BQ24257=y
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
CONFIG_CHARGER_BQ25890=m
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_CHARGER_RK817 is not set
CONFIG_CHARGER_SMB347=m
# CONFIG_CHARGER_TPS65090 is not set
CONFIG_CHARGER_TPS65217=m
CONFIG_BATTERY_GAUGE_LTC2941=y
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
CONFIG_CHARGER_RT9455=y
# CONFIG_CHARGER_SC2731 is not set
# CONFIG_FUEL_GAUGE_SC27XX is not set
# CONFIG_CHARGER_UCS1002 is not set
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_UG3105 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_AD7314=y
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
CONFIG_SENSORS_ADM1025=m
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM1177 is not set
# CONFIG_SENSORS_ADM9240 is not set
CONFIG_SENSORS_ADT7X10=y
CONFIG_SENSORS_ADT7310=y
# CONFIG_SENSORS_ADT7410 is not set
CONFIG_SENSORS_ADT7411=m
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AS370 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
# CONFIG_SENSORS_ASB100 is not set
CONFIG_SENSORS_ASPEED=m
CONFIG_SENSORS_ATXP1=y
# CONFIG_SENSORS_BT1_PVT is not set
CONFIG_SENSORS_DS620=y
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_DA9052_ADC is not set
CONFIG_SENSORS_DA9055=y
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_SPARX5 is not set
# CONFIG_SENSORS_F71805F is not set
CONFIG_SENSORS_F71882FG=m
# CONFIG_SENSORS_F75375S is not set
CONFIG_SENSORS_MC13783_ADC=m
# CONFIG_SENSORS_FSCHMD is not set
CONFIG_SENSORS_GL518SM=y
# CONFIG_SENSORS_GL520SM is not set
CONFIG_SENSORS_G760A=y
CONFIG_SENSORS_G762=m
CONFIG_SENSORS_GPIO_FAN=y
CONFIG_SENSORS_HIH6130=m
# CONFIG_SENSORS_IBMAEM is not set
CONFIG_SENSORS_IBMPEX=m
# CONFIG_SENSORS_IIO_HWMON is not set
CONFIG_SENSORS_IT87=y
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LAN966X is not set
CONFIG_SENSORS_LINEAGE=y
CONFIG_SENSORS_LTC2945=m
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
CONFIG_SENSORS_LTC2990=y
# CONFIG_SENSORS_LTC2992 is not set
CONFIG_SENSORS_LTC4151=m
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
CONFIG_SENSORS_LTC4260=y
# CONFIG_SENSORS_LTC4261 is not set
CONFIG_SENSORS_MAX1111=y
# CONFIG_SENSORS_MAX127 is not set
CONFIG_SENSORS_MAX16065=m
# CONFIG_SENSORS_MAX1619 is not set
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=y
CONFIG_SENSORS_MAX31722=y
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX31760 is not set
# CONFIG_SENSORS_MAX6620 is not set
CONFIG_SENSORS_MAX6621=y
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_MAX6697=y
CONFIG_SENSORS_MAX31790=y
CONFIG_SENSORS_MCP3021=m
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
CONFIG_SENSORS_MENF21BMC_HWMON=y
# CONFIG_SENSORS_MR75203 is not set
CONFIG_SENSORS_ADCXX=y
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM70=y
# CONFIG_SENSORS_LM73 is not set
CONFIG_SENSORS_LM75=y
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=y
CONFIG_SENSORS_LM80=y
CONFIG_SENSORS_LM83=y
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=y
CONFIG_SENSORS_LM90=y
CONFIG_SENSORS_LM92=y
CONFIG_SENSORS_LM93=m
# CONFIG_SENSORS_LM95234 is not set
CONFIG_SENSORS_LM95241=m
# CONFIG_SENSORS_LM95245 is not set
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
CONFIG_SENSORS_NTC_THERMISTOR=m
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775_CORE=y
CONFIG_SENSORS_NCT6775=y
# CONFIG_SENSORS_NCT6775_I2C is not set
CONFIG_SENSORS_NCT7802=y
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_NSA320 is not set
# CONFIG_SENSORS_OCC_P8_I2C is not set
CONFIG_SENSORS_PCF8591=m
# CONFIG_PMBUS is not set
CONFIG_SENSORS_PWM_FAN=y
# CONFIG_SENSORS_RASPBERRYPI_HWMON is not set
# CONFIG_SENSORS_SL28CPLD is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
CONFIG_SENSORS_SHT15=y
# CONFIG_SENSORS_SHT21 is not set
CONFIG_SENSORS_SHT3x=m
# CONFIG_SENSORS_SHT4x is not set
CONFIG_SENSORS_SHTC1=y
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_DME1737=y
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=y
# CONFIG_SENSORS_EMC2305 is not set
CONFIG_SENSORS_EMC6W201=y
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
CONFIG_SENSORS_SMSC47B397=y
# CONFIG_SENSORS_STTS751 is not set
CONFIG_SENSORS_SMM665=m
CONFIG_SENSORS_ADC128D818=m
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
CONFIG_SENSORS_INA209=m
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA238 is not set
CONFIG_SENSORS_INA3221=m
# CONFIG_SENSORS_TC74 is not set
CONFIG_SENSORS_THMC50=y
# CONFIG_SENSORS_TMP102 is not set
CONFIG_SENSORS_TMP103=y
CONFIG_SENSORS_TMP108=m
CONFIG_SENSORS_TMP401=m
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_TMP464 is not set
# CONFIG_SENSORS_TMP513 is not set
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=y
CONFIG_SENSORS_VT8231=y
CONFIG_SENSORS_W83773G=m
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=y
# CONFIG_SENSORS_W83793 is not set
CONFIG_SENSORS_W83795=y
CONFIG_SENSORS_W83795_FANCTRL=y
CONFIG_SENSORS_W83L785TS=m
# CONFIG_SENSORS_W83L786NG is not set
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=y
# CONFIG_SENSORS_WM8350 is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
# CONFIG_THERMAL_HWMON is not set
CONFIG_THERMAL_OF=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
# CONFIG_THERMAL_GOV_USER_SPACE is not set
# CONFIG_CPU_THERMAL is not set
CONFIG_DEVFREQ_THERMAL=y
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_THERMAL_MMIO is not set
CONFIG_HISI_THERMAL=y
# CONFIG_IMX_THERMAL is not set
# CONFIG_IMX8MM_THERMAL is not set
# CONFIG_K3_THERMAL is not set
CONFIG_MAX77620_THERMAL=y
CONFIG_QORIQ_THERMAL=m
# CONFIG_SPEAR_THERMAL is not set
# CONFIG_RCAR_THERMAL is not set
# CONFIG_RCAR_GEN3_THERMAL is not set
# CONFIG_RZG2L_THERMAL is not set
# CONFIG_KIRKWOOD_THERMAL is not set
# CONFIG_DOVE_THERMAL is not set
# CONFIG_ARMADA_THERMAL is not set
# CONFIG_DA9062_THERMAL is not set

#
# Intel thermal drivers
#

#
# ACPI INT340X thermal drivers
#
# end of ACPI INT340X thermal drivers
# end of Intel thermal drivers

#
# Broadcom thermal drivers
#
# CONFIG_BCM2711_THERMAL is not set
# CONFIG_BCM2835_THERMAL is not set
# CONFIG_BRCMSTB_THERMAL is not set
# CONFIG_BCM_NS_THERMAL is not set
# CONFIG_BCM_SR_THERMAL is not set
# end of Broadcom thermal drivers

#
# Texas Instruments thermal drivers
#
# CONFIG_TI_SOC_THERMAL is not set
# end of Texas Instruments thermal drivers

#
# Samsung thermal drivers
#
# CONFIG_EXYNOS_THERMAL is not set
# end of Samsung thermal drivers

#
# NVIDIA Tegra thermal drivers
#
# CONFIG_TEGRA_SOCTHERM is not set
# CONFIG_TEGRA_BPMP_THERMAL is not set
# CONFIG_TEGRA30_TSENSOR is not set
# end of NVIDIA Tegra thermal drivers

CONFIG_GENERIC_ADC_THERMAL=m

#
# Qualcomm thermal drivers
#
# CONFIG_QCOM_SPMI_ADC_TM5 is not set
CONFIG_QCOM_SPMI_TEMP_ALARM=y
# end of Qualcomm thermal drivers

# CONFIG_UNIPHIER_THERMAL is not set
# CONFIG_SPRD_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_SSB_DRIVER_GPIO=y
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
# CONFIG_BCMA_HOST_PCI is not set
CONFIG_BCMA_HOST_SOC=y
# CONFIG_BCMA_DRIVER_PCI is not set
# CONFIG_BCMA_DRIVER_MIPS is not set
CONFIG_BCMA_SFLASH=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
# CONFIG_BCMA_DRIVER_GPIO is not set
# CONFIG_BCMA_DEBUG is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_ACT8945A is not set
# CONFIG_MFD_SUN4I_GPADC is not set
CONFIG_MFD_AS3711=y
# CONFIG_MFD_AS3722 is not set
CONFIG_PMIC_ADP5520=y
CONFIG_MFD_AAT2870_CORE=y
# CONFIG_MFD_AT91_USART is not set
CONFIG_MFD_ATMEL_FLEXCOM=y
CONFIG_MFD_ATMEL_HLCDC=m
CONFIG_MFD_BCM590XX=m
# CONFIG_MFD_BD9571MWV is not set
CONFIG_MFD_AXP20X=m
CONFIG_MFD_AXP20X_I2C=m
CONFIG_MFD_MADERA=m
CONFIG_MFD_MADERA_I2C=m
CONFIG_MFD_MADERA_SPI=m
# CONFIG_MFD_CS47L15 is not set
# CONFIG_MFD_CS47L35 is not set
# CONFIG_MFD_CS47L85 is not set
# CONFIG_MFD_CS47L90 is not set
# CONFIG_MFD_CS47L92 is not set
# CONFIG_MFD_ASIC3 is not set
CONFIG_PMIC_DA903X=y
CONFIG_PMIC_DA9052=y
# CONFIG_MFD_DA9052_SPI is not set
CONFIG_MFD_DA9052_I2C=y
CONFIG_MFD_DA9055=y
# CONFIG_MFD_DA9062 is not set
CONFIG_MFD_DA9063=y
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_ENE_KB3930 is not set
# CONFIG_MFD_EXYNOS_LPASS is not set
# CONFIG_MFD_GATEWORKS_GSC is not set
CONFIG_MFD_MC13XXX=y
CONFIG_MFD_MC13XXX_SPI=y
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_MFD_MXS_LRADC is not set
# CONFIG_MFD_MX25_TSADC is not set
CONFIG_MFD_HI6421_PMIC=y
# CONFIG_MFD_HI6421_SPMI is not set
# CONFIG_MFD_HI655X_PMIC is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
CONFIG_LPC_ICH=y
CONFIG_LPC_SCH=y
# CONFIG_MFD_IQS62X is not set
CONFIG_MFD_JANZ_CMODIO=m
CONFIG_MFD_KEMPLD=m
CONFIG_MFD_88PM800=y
CONFIG_MFD_88PM805=y
CONFIG_MFD_88PM860X=y
CONFIG_MFD_MAX14577=y
CONFIG_MFD_MAX77620=y
# CONFIG_MFD_MAX77650 is not set
# CONFIG_MFD_MAX77686 is not set
CONFIG_MFD_MAX77693=y
# CONFIG_MFD_MAX77714 is not set
# CONFIG_MFD_MAX77843 is not set
CONFIG_MFD_MAX8907=y
CONFIG_MFD_MAX8925=y
# CONFIG_MFD_MAX8997 is not set
CONFIG_MFD_MAX8998=y
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6370 is not set
# CONFIG_MFD_MT6397 is not set
CONFIG_MFD_MENF21BMC=y
# CONFIG_MFD_OCELOT is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_CPCAP is not set
# CONFIG_MFD_NTXEC is not set
CONFIG_MFD_RETU=m
CONFIG_MFD_PCF50633=m
# CONFIG_PCF50633_ADC is not set
# CONFIG_PCF50633_GPIO is not set
CONFIG_UCB1400_CORE=m
# CONFIG_MFD_PM8XXX is not set
# CONFIG_MFD_SPMI_PMIC is not set
# CONFIG_MFD_SY7636A is not set
CONFIG_MFD_RDC321X=y
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RT5120 is not set
# CONFIG_MFD_RC5T583 is not set
CONFIG_MFD_RK808=m
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_CORE is not set
CONFIG_MFD_SI476X_CORE=m
# CONFIG_MFD_SL28CPLD is not set
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
CONFIG_MFD_SKY81452=m
# CONFIG_MFD_SC27XX_PMIC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SUN6I_PRCM is not set
CONFIG_MFD_SYSCON=y
CONFIG_MFD_TI_AM335X_TSCADC=m
CONFIG_MFD_LP3943=m
# CONFIG_MFD_LP8788 is not set
CONFIG_MFD_TI_LMU=y
# CONFIG_MFD_PALMAS is not set
CONFIG_TPS6105X=y
CONFIG_TPS65010=y
CONFIG_TPS6507X=m
CONFIG_MFD_TPS65086=m
CONFIG_MFD_TPS65090=y
CONFIG_MFD_TPS65217=m
# CONFIG_MFD_TI_LP873X is not set
CONFIG_MFD_TI_LP87565=y
CONFIG_MFD_TPS65218=m
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
CONFIG_MFD_TPS65912=y
CONFIG_MFD_TPS65912_I2C=y
# CONFIG_MFD_TPS65912_SPI is not set
CONFIG_TWL4030_CORE=y
# CONFIG_MFD_TWL4030_AUDIO is not set
# CONFIG_TWL6040_CORE is not set
CONFIG_MFD_WL1273_CORE=y
CONFIG_MFD_LM3533=y
# CONFIG_MFD_TIMBERDALE is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TQMX86 is not set
CONFIG_MFD_VX855=m
# CONFIG_MFD_LOCHNAGAR is not set
CONFIG_MFD_ARIZONA=m
# CONFIG_MFD_ARIZONA_I2C is not set
CONFIG_MFD_ARIZONA_SPI=m
# CONFIG_MFD_CS47L24 is not set
# CONFIG_MFD_WM5102 is not set
# CONFIG_MFD_WM5110 is not set
CONFIG_MFD_WM8997=y
CONFIG_MFD_WM8998=y
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
CONFIG_MFD_WM8350=y
CONFIG_MFD_WM8350_I2C=y
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_STW481X is not set
CONFIG_MFD_ROHM_BD718XX=y
# CONFIG_MFD_ROHM_BD71828 is not set
# CONFIG_MFD_ROHM_BD957XMUF is not set
# CONFIG_MFD_STM32_LPTIMER is not set
# CONFIG_MFD_STM32_TIMERS is not set
# CONFIG_MFD_STPMIC1 is not set
# CONFIG_MFD_STMFX is not set
# CONFIG_MFD_WCD934X is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_KHADAS_MCU is not set
# CONFIG_MFD_ACER_A500_EC is not set
# CONFIG_MFD_QCOM_PM8008 is not set
# CONFIG_RAVE_SP_CORE is not set
# CONFIG_MFD_INTEL_M10_BMC is not set
# CONFIG_MFD_RSMU_I2C is not set
# CONFIG_MFD_RSMU_SPI is not set
# end of Multifunction device drivers

CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_VIRTUAL_CONSUMER=m
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
CONFIG_REGULATOR_88PG86X=y
# CONFIG_REGULATOR_88PM800 is not set
CONFIG_REGULATOR_88PM8607=y
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
CONFIG_REGULATOR_ANATOP=m
# CONFIG_REGULATOR_AAT2870 is not set
CONFIG_REGULATOR_ARIZONA_LDO1=m
CONFIG_REGULATOR_ARIZONA_MICSUPP=m
# CONFIG_REGULATOR_AS3711 is not set
CONFIG_REGULATOR_AXP20X=m
CONFIG_REGULATOR_BCM590XX=m
CONFIG_REGULATOR_BD718XX=y
CONFIG_REGULATOR_DA9052=m
CONFIG_REGULATOR_DA9055=y
# CONFIG_REGULATOR_DA9063 is not set
# CONFIG_REGULATOR_DA9121 is not set
CONFIG_REGULATOR_DA9210=y
CONFIG_REGULATOR_DA9211=y
CONFIG_REGULATOR_FAN53555=y
# CONFIG_REGULATOR_FAN53880 is not set
# CONFIG_REGULATOR_GPIO is not set
CONFIG_REGULATOR_HI6421=m
# CONFIG_REGULATOR_HI6421V530 is not set
CONFIG_REGULATOR_ISL9305=y
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_LM363X is not set
CONFIG_REGULATOR_LP3971=y
# CONFIG_REGULATOR_LP3972 is not set
CONFIG_REGULATOR_LP872X=y
CONFIG_REGULATOR_LP8755=y
# CONFIG_REGULATOR_LP87565 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
CONFIG_REGULATOR_MAX14577=m
CONFIG_REGULATOR_MAX1586=y
# CONFIG_REGULATOR_MAX77620 is not set
# CONFIG_REGULATOR_MAX77650 is not set
CONFIG_REGULATOR_MAX8649=y
CONFIG_REGULATOR_MAX8660=y
# CONFIG_REGULATOR_MAX8893 is not set
# CONFIG_REGULATOR_MAX8907 is not set
# CONFIG_REGULATOR_MAX8925 is not set
CONFIG_REGULATOR_MAX8952=m
# CONFIG_REGULATOR_MAX8973 is not set
# CONFIG_REGULATOR_MAX8998 is not set
# CONFIG_REGULATOR_MAX20086 is not set
# CONFIG_REGULATOR_MAX77686 is not set
CONFIG_REGULATOR_MAX77693=y
# CONFIG_REGULATOR_MAX77802 is not set
# CONFIG_REGULATOR_MAX77826 is not set
CONFIG_REGULATOR_MC13XXX_CORE=y
CONFIG_REGULATOR_MC13783=y
CONFIG_REGULATOR_MC13892=m
# CONFIG_REGULATOR_MCP16502 is not set
# CONFIG_REGULATOR_MP5416 is not set
# CONFIG_REGULATOR_MP8859 is not set
# CONFIG_REGULATOR_MP886X is not set
# CONFIG_REGULATOR_MPQ7920 is not set
CONFIG_REGULATOR_MT6311=y
# CONFIG_REGULATOR_MT6315 is not set
# CONFIG_REGULATOR_PBIAS is not set
# CONFIG_REGULATOR_PCA9450 is not set
CONFIG_REGULATOR_PCF50633=m
# CONFIG_REGULATOR_PF8X00 is not set
CONFIG_REGULATOR_PFUZE100=m
CONFIG_REGULATOR_PV88060=y
# CONFIG_REGULATOR_PV88080 is not set
CONFIG_REGULATOR_PV88090=m
# CONFIG_REGULATOR_PWM is not set
# CONFIG_REGULATOR_QCOM_RPMH is not set
# CONFIG_REGULATOR_QCOM_SPMI is not set
# CONFIG_REGULATOR_QCOM_USB_VBUS is not set
# CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY is not set
CONFIG_REGULATOR_RK808=m
CONFIG_REGULATOR_ROHM=y
# CONFIG_REGULATOR_RT4801 is not set
# CONFIG_REGULATOR_RT5190A is not set
# CONFIG_REGULATOR_RT5759 is not set
# CONFIG_REGULATOR_RT6160 is not set
# CONFIG_REGULATOR_RT6245 is not set
# CONFIG_REGULATOR_RTQ2134 is not set
# CONFIG_REGULATOR_RTMV20 is not set
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_S2MPA01 is not set
# CONFIG_REGULATOR_S2MPS11 is not set
# CONFIG_REGULATOR_S5M8767 is not set
# CONFIG_REGULATOR_SC2731 is not set
# CONFIG_REGULATOR_SKY81452 is not set
# CONFIG_REGULATOR_SLG51000 is not set
# CONFIG_REGULATOR_STM32_BOOSTER is not set
# CONFIG_REGULATOR_STM32_VREFBUF is not set
# CONFIG_REGULATOR_STM32_PWR is not set
# CONFIG_REGULATOR_TI_ABB is not set
# CONFIG_REGULATOR_STW481X_VMMC is not set
CONFIG_REGULATOR_SY8106A=y
# CONFIG_REGULATOR_SY8824X is not set
# CONFIG_REGULATOR_SY8827N is not set
CONFIG_REGULATOR_TPS51632=m
# CONFIG_REGULATOR_TPS6105X is not set
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS6286X is not set
CONFIG_REGULATOR_TPS65023=m
CONFIG_REGULATOR_TPS6507X=y
# CONFIG_REGULATOR_TPS65086 is not set
CONFIG_REGULATOR_TPS65090=m
CONFIG_REGULATOR_TPS65132=m
CONFIG_REGULATOR_TPS65217=m
CONFIG_REGULATOR_TPS65218=m
# CONFIG_REGULATOR_TPS6524X is not set
CONFIG_REGULATOR_TPS65912=m
# CONFIG_REGULATOR_TPS68470 is not set
CONFIG_REGULATOR_TWL4030=m
# CONFIG_REGULATOR_UNIPHIER is not set
# CONFIG_REGULATOR_VCTRL is not set
CONFIG_REGULATOR_WM8350=m
# CONFIG_REGULATOR_QCOM_LABIBB is not set

#
# CEC support
#
CONFIG_MEDIA_CEC_SUPPORT=y
# CONFIG_CEC_CH7322 is not set
# CONFIG_CEC_MESON_AO is not set
# CONFIG_CEC_MESON_G12A_AO is not set
# CONFIG_CEC_GPIO is not set
# CONFIG_CEC_SAMSUNG_S5P is not set
# CONFIG_CEC_STI is not set
# CONFIG_CEC_STM32 is not set
# CONFIG_CEC_TEGRA is not set
# end of CEC support

CONFIG_MEDIA_SUPPORT=y
# CONFIG_MEDIA_SUPPORT_FILTER is not set
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
CONFIG_MEDIA_RADIO_SUPPORT=y
CONFIG_MEDIA_SDR_SUPPORT=y
CONFIG_MEDIA_PLATFORM_SUPPORT=y
CONFIG_MEDIA_TEST_SUPPORT=y
# end of Media device types

#
# Media core support
#
CONFIG_VIDEO_DEV=y
# CONFIG_MEDIA_CONTROLLER is not set
CONFIG_DVB_CORE=y
# end of Media core support

#
# Video4Linux options
#
CONFIG_VIDEO_V4L2_I2C=y
CONFIG_VIDEO_ADV_DEBUG=y
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_TUNER=m
# CONFIG_V4L2_FLASH_LED_CLASS is not set
# end of Video4Linux options

#
# Digital TV options
#
# CONFIG_DVB_MMAP is not set
CONFIG_DVB_MAX_ADAPTERS=16
CONFIG_DVB_DYNAMIC_MINORS=y
# CONFIG_DVB_DEMUX_SECTION_LOSS_LOG is not set
# CONFIG_DVB_ULE_DEBUG is not set
# end of Digital TV options

#
# Media drivers
#

#
# Media drivers
#
CONFIG_MEDIA_PCI_SUPPORT=y

#
# Media capture support
#
CONFIG_VIDEO_SOLO6X10=y
# CONFIG_STA2X11_VIP is not set
CONFIG_VIDEO_TW5864=y
# CONFIG_VIDEO_TW68 is not set
CONFIG_VIDEO_TW686X=m
# CONFIG_VIDEO_ZORAN is not set

#
# Media capture/analog TV support
#
CONFIG_VIDEO_DT3155=y

#
# Media capture/analog/hybrid TV support
#
CONFIG_VIDEO_CX25821=y
CONFIG_VIDEO_CX25821_ALSA=y
CONFIG_VIDEO_SAA7134=m
CONFIG_VIDEO_SAA7134_ALSA=m
# CONFIG_VIDEO_SAA7134_DVB is not set
# CONFIG_VIDEO_SAA7164 is not set

#
# Media digital TV PCI Adapters
#
# CONFIG_DVB_B2C2_FLEXCOP_PCI is not set
# CONFIG_DVB_DDBRIDGE is not set
# CONFIG_DVB_NETUP_UNIDVB is not set
# CONFIG_DVB_NGENE is not set
# CONFIG_DVB_PLUTO2 is not set
# CONFIG_DVB_PT1 is not set
# CONFIG_DVB_PT3 is not set
# CONFIG_RADIO_ADAPTERS is not set
CONFIG_MEDIA_PLATFORM_DRIVERS=y
# CONFIG_V4L_PLATFORM_DRIVERS is not set
# CONFIG_SDR_PLATFORM_DRIVERS is not set
# CONFIG_DVB_PLATFORM_DRIVERS is not set
# CONFIG_V4L_MEM2MEM_DRIVERS is not set

#
# Allegro DVT media platform drivers
#

#
# Amlogic media platform drivers
#

#
# Amphion drivers
#

#
# Aspeed media platform drivers
#

#
# Atmel media platform drivers
#

#
# Cadence media platform drivers
#
# CONFIG_VIDEO_CADENCE_CSI2RX is not set
# CONFIG_VIDEO_CADENCE_CSI2TX is not set

#
# Chips&Media media platform drivers
#

#
# Intel media platform drivers
#

#
# Marvell media platform drivers
#

#
# Mediatek media platform drivers
#

#
# NVidia media platform drivers
#

#
# NXP media platform drivers
#
# CONFIG_VIDEO_IMX_MIPI_CSIS is not set

#
# Qualcomm media platform drivers
#

#
# Renesas media platform drivers
#

#
# Rockchip media platform drivers
#

#
# Samsung media platform drivers
#

#
# STMicroelectronics media platform drivers
#

#
# Sunxi media platform drivers
#

#
# Texas Instruments drivers
#

#
# Verisilicon media platform drivers
#

#
# VIA media platform drivers
#

#
# Xilinx media platform drivers
#
# CONFIG_V4L_TEST_DRIVERS is not set
# CONFIG_DVB_TEST_DRIVERS is not set

#
# FireWire (IEEE 1394) Adapters
#
# CONFIG_DVB_FIREDTV is not set
CONFIG_VIDEO_TVEEPROM=m
CONFIG_VIDEOBUF2_CORE=y
CONFIG_VIDEOBUF2_V4L2=y
CONFIG_VIDEOBUF2_MEMOPS=y
CONFIG_VIDEOBUF2_DMA_CONTIG=y
CONFIG_VIDEOBUF2_VMALLOC=m
CONFIG_VIDEOBUF2_DMA_SG=y
# end of Media drivers

#
# Media ancillary drivers
#
CONFIG_MEDIA_ATTACH=y

#
# Camera sensor devices
#
# CONFIG_VIDEO_AR0521 is not set
# CONFIG_VIDEO_HI556 is not set
# CONFIG_VIDEO_HI846 is not set
# CONFIG_VIDEO_HI847 is not set
# CONFIG_VIDEO_IMX208 is not set
# CONFIG_VIDEO_IMX214 is not set
# CONFIG_VIDEO_IMX219 is not set
# CONFIG_VIDEO_IMX258 is not set
# CONFIG_VIDEO_IMX274 is not set
# CONFIG_VIDEO_IMX290 is not set
# CONFIG_VIDEO_IMX319 is not set
# CONFIG_VIDEO_IMX334 is not set
# CONFIG_VIDEO_IMX335 is not set
# CONFIG_VIDEO_IMX355 is not set
# CONFIG_VIDEO_IMX412 is not set
# CONFIG_VIDEO_MT9M001 is not set
# CONFIG_VIDEO_MT9M032 is not set
# CONFIG_VIDEO_MT9M111 is not set
# CONFIG_VIDEO_MT9P031 is not set
# CONFIG_VIDEO_MT9T001 is not set
# CONFIG_VIDEO_MT9T112 is not set
# CONFIG_VIDEO_MT9V011 is not set
# CONFIG_VIDEO_MT9V032 is not set
# CONFIG_VIDEO_MT9V111 is not set
# CONFIG_VIDEO_NOON010PC30 is not set
# CONFIG_VIDEO_OG01A1B is not set
# CONFIG_VIDEO_OV02A10 is not set
# CONFIG_VIDEO_OV08D10 is not set
# CONFIG_VIDEO_OV13858 is not set
# CONFIG_VIDEO_OV13B10 is not set
# CONFIG_VIDEO_OV2640 is not set
# CONFIG_VIDEO_OV2659 is not set
# CONFIG_VIDEO_OV2680 is not set
# CONFIG_VIDEO_OV2685 is not set
# CONFIG_VIDEO_OV2740 is not set
# CONFIG_VIDEO_OV5640 is not set
# CONFIG_VIDEO_OV5645 is not set
# CONFIG_VIDEO_OV5647 is not set
# CONFIG_VIDEO_OV5648 is not set
# CONFIG_VIDEO_OV5670 is not set
# CONFIG_VIDEO_OV5675 is not set
# CONFIG_VIDEO_OV5693 is not set
# CONFIG_VIDEO_OV5695 is not set
# CONFIG_VIDEO_OV6650 is not set
# CONFIG_VIDEO_OV7251 is not set
# CONFIG_VIDEO_OV7640 is not set
# CONFIG_VIDEO_OV7670 is not set
# CONFIG_VIDEO_OV772X is not set
# CONFIG_VIDEO_OV7740 is not set
# CONFIG_VIDEO_OV8856 is not set
# CONFIG_VIDEO_OV8865 is not set
# CONFIG_VIDEO_OV9282 is not set
# CONFIG_VIDEO_OV9640 is not set
# CONFIG_VIDEO_OV9650 is not set
# CONFIG_VIDEO_OV9734 is not set
# CONFIG_VIDEO_RDACM20 is not set
# CONFIG_VIDEO_RDACM21 is not set
# CONFIG_VIDEO_RJ54N1 is not set
# CONFIG_VIDEO_S5C73M3 is not set
# CONFIG_VIDEO_S5K4ECGX is not set
# CONFIG_VIDEO_S5K5BAF is not set
# CONFIG_VIDEO_S5K6A3 is not set
# CONFIG_VIDEO_S5K6AA is not set
# CONFIG_VIDEO_SR030PC30 is not set
# CONFIG_VIDEO_VS6624 is not set
# CONFIG_VIDEO_CCS is not set
# CONFIG_VIDEO_ET8EK8 is not set
# CONFIG_VIDEO_M5MOLS is not set
# end of Camera sensor devices

#
# Lens drivers
#
# CONFIG_VIDEO_AD5820 is not set
# CONFIG_VIDEO_AK7375 is not set
# CONFIG_VIDEO_DW9714 is not set
# CONFIG_VIDEO_DW9768 is not set
# CONFIG_VIDEO_DW9807_VCM is not set
# end of Lens drivers

#
# Flash devices
#
# CONFIG_VIDEO_ADP1653 is not set
# CONFIG_VIDEO_LM3560 is not set
# CONFIG_VIDEO_LM3646 is not set
# end of Flash devices

#
# Audio decoders, processors and mixers
#
# CONFIG_VIDEO_CS3308 is not set
# CONFIG_VIDEO_CS5345 is not set
# CONFIG_VIDEO_CS53L32A is not set
# CONFIG_VIDEO_MSP3400 is not set
# CONFIG_VIDEO_SONY_BTF_MPX is not set
# CONFIG_VIDEO_TDA1997X is not set
# CONFIG_VIDEO_TDA7432 is not set
CONFIG_VIDEO_TDA9840=y
CONFIG_VIDEO_TEA6415C=y
CONFIG_VIDEO_TEA6420=y
# CONFIG_VIDEO_TLV320AIC23B is not set
# CONFIG_VIDEO_TVAUDIO is not set
# CONFIG_VIDEO_UDA1342 is not set
# CONFIG_VIDEO_VP27SMPX is not set
# CONFIG_VIDEO_WM8739 is not set
# CONFIG_VIDEO_WM8775 is not set
# end of Audio decoders, processors and mixers

#
# RDS decoders
#
CONFIG_VIDEO_SAA6588=m
# end of RDS decoders

#
# Video decoders
#
# CONFIG_VIDEO_ADV7180 is not set
# CONFIG_VIDEO_ADV7183 is not set
# CONFIG_VIDEO_ADV748X is not set
# CONFIG_VIDEO_ADV7604 is not set
# CONFIG_VIDEO_ADV7842 is not set
# CONFIG_VIDEO_BT819 is not set
# CONFIG_VIDEO_BT856 is not set
# CONFIG_VIDEO_BT866 is not set
# CONFIG_VIDEO_ISL7998X is not set
# CONFIG_VIDEO_KS0127 is not set
# CONFIG_VIDEO_MAX9286 is not set
# CONFIG_VIDEO_ML86V7667 is not set
# CONFIG_VIDEO_SAA7110 is not set
CONFIG_VIDEO_SAA711X=y
# CONFIG_VIDEO_TC358743 is not set
# CONFIG_VIDEO_TVP514X is not set
# CONFIG_VIDEO_TVP5150 is not set
# CONFIG_VIDEO_TVP7002 is not set
# CONFIG_VIDEO_TW2804 is not set
# CONFIG_VIDEO_TW9903 is not set
# CONFIG_VIDEO_TW9906 is not set
# CONFIG_VIDEO_TW9910 is not set
# CONFIG_VIDEO_VPX3220 is not set

#
# Video and audio decoders
#
# CONFIG_VIDEO_SAA717X is not set
# CONFIG_VIDEO_CX25840 is not set
# end of Video decoders

#
# Video encoders
#
# CONFIG_VIDEO_AD9389B is not set
# CONFIG_VIDEO_ADV7170 is not set
# CONFIG_VIDEO_ADV7175 is not set
# CONFIG_VIDEO_ADV7343 is not set
# CONFIG_VIDEO_ADV7393 is not set
# CONFIG_VIDEO_ADV7511 is not set
# CONFIG_VIDEO_AK881X is not set
# CONFIG_VIDEO_SAA7127 is not set
# CONFIG_VIDEO_SAA7185 is not set
# CONFIG_VIDEO_THS8200 is not set
# end of Video encoders

#
# Video improvement chips
#
# CONFIG_VIDEO_UPD64031A is not set
# CONFIG_VIDEO_UPD64083 is not set
# end of Video improvement chips

#
# Audio/Video compression chips
#
CONFIG_VIDEO_SAA6752HS=m
# end of Audio/Video compression chips

#
# SDR tuner chips
#
# CONFIG_SDR_MAX2175 is not set
# end of SDR tuner chips

#
# Miscellaneous helper chips
#
# CONFIG_VIDEO_I2C is not set
# CONFIG_VIDEO_M52790 is not set
# CONFIG_VIDEO_ST_MIPID02 is not set
# CONFIG_VIDEO_THS7303 is not set
# end of Miscellaneous helper chips

#
# Media SPI Adapters
#
# CONFIG_CXD2880_SPI_DRV is not set
# CONFIG_VIDEO_GS1662 is not set
# end of Media SPI Adapters

CONFIG_MEDIA_TUNER=y

#
# Customize TV tuners
#
# CONFIG_MEDIA_TUNER_E4000 is not set
# CONFIG_MEDIA_TUNER_FC0011 is not set
# CONFIG_MEDIA_TUNER_FC0012 is not set
# CONFIG_MEDIA_TUNER_FC0013 is not set
# CONFIG_MEDIA_TUNER_FC2580 is not set
# CONFIG_MEDIA_TUNER_IT913X is not set
# CONFIG_MEDIA_TUNER_M88RS6000T is not set
# CONFIG_MEDIA_TUNER_MAX2165 is not set
CONFIG_MEDIA_TUNER_MC44S803=y
# CONFIG_MEDIA_TUNER_MSI001 is not set
# CONFIG_MEDIA_TUNER_MT2060 is not set
# CONFIG_MEDIA_TUNER_MT2063 is not set
CONFIG_MEDIA_TUNER_MT20XX=y
# CONFIG_MEDIA_TUNER_MT2131 is not set
# CONFIG_MEDIA_TUNER_MT2266 is not set
# CONFIG_MEDIA_TUNER_MXL301RF is not set
# CONFIG_MEDIA_TUNER_MXL5005S is not set
# CONFIG_MEDIA_TUNER_MXL5007T is not set
# CONFIG_MEDIA_TUNER_QM1D1B0004 is not set
# CONFIG_MEDIA_TUNER_QM1D1C0042 is not set
# CONFIG_MEDIA_TUNER_QT1010 is not set
# CONFIG_MEDIA_TUNER_R820T is not set
# CONFIG_MEDIA_TUNER_SI2157 is not set
CONFIG_MEDIA_TUNER_SIMPLE=y
# CONFIG_MEDIA_TUNER_TDA18212 is not set
# CONFIG_MEDIA_TUNER_TDA18218 is not set
# CONFIG_MEDIA_TUNER_TDA18250 is not set
CONFIG_MEDIA_TUNER_TDA18271=y
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_TEA5761=y
CONFIG_MEDIA_TUNER_TEA5767=y
# CONFIG_MEDIA_TUNER_TUA9001 is not set
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC4000=y
CONFIG_MEDIA_TUNER_XC5000=y
# end of Customize TV tuners

#
# Customise DVB Frontends
#

#
# Multistandard (satellite) frontends
#
# CONFIG_DVB_M88DS3103 is not set
# CONFIG_DVB_MXL5XX is not set
# CONFIG_DVB_STB0899 is not set
# CONFIG_DVB_STB6100 is not set
# CONFIG_DVB_STV090x is not set
# CONFIG_DVB_STV0910 is not set
# CONFIG_DVB_STV6110x is not set
# CONFIG_DVB_STV6111 is not set

#
# Multistandard (cable + terrestrial) frontends
#
# CONFIG_DVB_DRXK is not set
# CONFIG_DVB_MN88472 is not set
# CONFIG_DVB_MN88473 is not set
# CONFIG_DVB_SI2165 is not set
# CONFIG_DVB_TDA18271C2DD is not set

#
# DVB-S (satellite) frontends
#
# CONFIG_DVB_CX24110 is not set
# CONFIG_DVB_CX24116 is not set
# CONFIG_DVB_CX24117 is not set
# CONFIG_DVB_CX24120 is not set
# CONFIG_DVB_CX24123 is not set
# CONFIG_DVB_DS3000 is not set
# CONFIG_DVB_MB86A16 is not set
# CONFIG_DVB_MT312 is not set
# CONFIG_DVB_S5H1420 is not set
# CONFIG_DVB_SI21XX is not set
# CONFIG_DVB_STB6000 is not set
# CONFIG_DVB_STV0288 is not set
# CONFIG_DVB_STV0299 is not set
# CONFIG_DVB_STV0900 is not set
# CONFIG_DVB_STV6110 is not set
# CONFIG_DVB_TDA10071 is not set
# CONFIG_DVB_TDA10086 is not set
# CONFIG_DVB_TDA8083 is not set
# CONFIG_DVB_TDA8261 is not set
# CONFIG_DVB_TDA826X is not set
# CONFIG_DVB_TS2020 is not set
# CONFIG_DVB_TUA6100 is not set
# CONFIG_DVB_TUNER_CX24113 is not set
# CONFIG_DVB_TUNER_ITD1000 is not set
# CONFIG_DVB_VES1X93 is not set
# CONFIG_DVB_ZL10036 is not set
# CONFIG_DVB_ZL10039 is not set

#
# DVB-T (terrestrial) frontends
#
# CONFIG_DVB_AF9013 is not set
# CONFIG_DVB_CX22700 is not set
# CONFIG_DVB_CX22702 is not set
# CONFIG_DVB_CXD2820R is not set
# CONFIG_DVB_CXD2841ER is not set
# CONFIG_DVB_DIB3000MB is not set
# CONFIG_DVB_DIB3000MC is not set
# CONFIG_DVB_DIB7000M is not set
# CONFIG_DVB_DIB7000P is not set
# CONFIG_DVB_DIB9000 is not set
# CONFIG_DVB_DRXD is not set
# CONFIG_DVB_EC100 is not set
# CONFIG_DVB_L64781 is not set
# CONFIG_DVB_MT352 is not set
# CONFIG_DVB_NXT6000 is not set
# CONFIG_DVB_RTL2830 is not set
# CONFIG_DVB_RTL2832 is not set
# CONFIG_DVB_S5H1432 is not set
# CONFIG_DVB_SI2168 is not set
# CONFIG_DVB_SP887X is not set
# CONFIG_DVB_STV0367 is not set
# CONFIG_DVB_TDA10048 is not set
# CONFIG_DVB_TDA1004X is not set
# CONFIG_DVB_ZD1301_DEMOD is not set
# CONFIG_DVB_ZL10353 is not set
# CONFIG_DVB_CXD2880 is not set

#
# DVB-C (cable) frontends
#
# CONFIG_DVB_STV0297 is not set
# CONFIG_DVB_TDA10021 is not set
# CONFIG_DVB_TDA10023 is not set
# CONFIG_DVB_VES1820 is not set

#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
# CONFIG_DVB_AU8522_DTV is not set
# CONFIG_DVB_AU8522_V4L is not set
# CONFIG_DVB_BCM3510 is not set
# CONFIG_DVB_LG2160 is not set
# CONFIG_DVB_LGDT3305 is not set
# CONFIG_DVB_LGDT3306A is not set
# CONFIG_DVB_LGDT330X is not set
# CONFIG_DVB_MXL692 is not set
# CONFIG_DVB_NXT200X is not set
# CONFIG_DVB_OR51132 is not set
# CONFIG_DVB_OR51211 is not set
# CONFIG_DVB_S5H1409 is not set
# CONFIG_DVB_S5H1411 is not set

#
# ISDB-T (terrestrial) frontends
#
# CONFIG_DVB_DIB8000 is not set
# CONFIG_DVB_MB86A20S is not set
# CONFIG_DVB_S921 is not set

#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends
#
# CONFIG_DVB_MN88443X is not set
# CONFIG_DVB_TC90522 is not set

#
# Digital terrestrial only tuners/PLL
#
# CONFIG_DVB_PLL is not set
# CONFIG_DVB_TUNER_DIB0070 is not set
# CONFIG_DVB_TUNER_DIB0090 is not set

#
# SEC control devices for DVB-S
#
# CONFIG_DVB_A8293 is not set
# CONFIG_DVB_AF9033 is not set
# CONFIG_DVB_ASCOT2E is not set
# CONFIG_DVB_ATBM8830 is not set
# CONFIG_DVB_HELENE is not set
# CONFIG_DVB_HORUS3A is not set
# CONFIG_DVB_ISL6405 is not set
# CONFIG_DVB_ISL6421 is not set
# CONFIG_DVB_ISL6423 is not set
# CONFIG_DVB_IX2505V is not set
# CONFIG_DVB_LGS8GL5 is not set
# CONFIG_DVB_LGS8GXX is not set
# CONFIG_DVB_LNBH25 is not set
# CONFIG_DVB_LNBH29 is not set
# CONFIG_DVB_LNBP21 is not set
# CONFIG_DVB_LNBP22 is not set
# CONFIG_DVB_M88RS2000 is not set
# CONFIG_DVB_TDA665x is not set
# CONFIG_DVB_DRX39XYJ is not set

#
# Common Interface (EN50221) controller drivers
#
# CONFIG_DVB_CXD2099 is not set
# CONFIG_DVB_SP2 is not set
# end of Customise DVB Frontends

#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
# end of Media ancillary drivers

#
# Graphics support
#
# CONFIG_IMX_IPUV3_CORE is not set
# CONFIG_DRM is not set
# CONFIG_DRM_DEBUG_MODESET_LOCK is not set

#
# ARM devices
#
# end of ARM devices

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
CONFIG_FB_FOREIGN_ENDIAN=y
# CONFIG_FB_BOTH_ENDIAN is not set
# CONFIG_FB_BIG_ENDIAN is not set
CONFIG_FB_LITTLE_ENDIAN=y
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_SVGALIB=y
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CLPS711X is not set
# CONFIG_FB_IMX is not set
CONFIG_FB_CYBER2000=m
# CONFIG_FB_CYBER2000_DDC is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_CONTROL is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_EFI is not set
# CONFIG_FB_GBE is not set
# CONFIG_FB_PVR2 is not set
CONFIG_FB_OPENCORES=m
CONFIG_FB_S1D13XXX=y
# CONFIG_FB_ATMEL is not set
CONFIG_FB_NVIDIA=m
CONFIG_FB_NVIDIA_I2C=y
# CONFIG_FB_NVIDIA_DEBUG is not set
CONFIG_FB_NVIDIA_BACKLIGHT=y
# CONFIG_FB_RIVA is not set
CONFIG_FB_I740=y
# CONFIG_FB_MATROX is not set
CONFIG_FB_RADEON=m
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
# CONFIG_FB_RADEON_DEBUG is not set
CONFIG_FB_ATY128=y
CONFIG_FB_ATY128_BACKLIGHT=y
# CONFIG_FB_ATY is not set
CONFIG_FB_S3=y
CONFIG_FB_S3_DDC=y
CONFIG_FB_SAVAGE=y
# CONFIG_FB_SAVAGE_I2C is not set
CONFIG_FB_SAVAGE_ACCEL=y
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
CONFIG_FB_NEOMAGIC=y
CONFIG_FB_KYRO=m
CONFIG_FB_3DFX=y
CONFIG_FB_3DFX_ACCEL=y
CONFIG_FB_3DFX_I2C=y
# CONFIG_FB_VOODOO1 is not set
CONFIG_FB_VT8623=m
# CONFIG_FB_TRIDENT is not set
CONFIG_FB_ARK=m
CONFIG_FB_PM3=m
CONFIG_FB_CARMINE=m
CONFIG_FB_CARMINE_DRAM_EVAL=y
# CONFIG_CARMINE_DRAM_CUSTOM is not set
# CONFIG_FB_WM8505 is not set
# CONFIG_FB_PXA168 is not set
# CONFIG_FB_W100 is not set
# CONFIG_FB_SH_MOBILE_LCDC is not set
# CONFIG_FB_TMIO is not set
# CONFIG_FB_S3C is not set
# CONFIG_FB_SM501 is not set
CONFIG_FB_IBM_GXT4500=m
# CONFIG_FB_GOLDFISH is not set
# CONFIG_FB_DA8XX is not set
CONFIG_FB_VIRTUAL=y
CONFIG_FB_METRONOME=y
CONFIG_FB_MB862XX=m
CONFIG_FB_MB862XX_PCI_GDC=y
CONFIG_FB_MB862XX_I2C=y
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SSD1307 is not set
CONFIG_FB_SM712=m
CONFIG_FB_OMAP_LCD_H3=y
# CONFIG_FB_OMAP2 is not set
# CONFIG_MMP_DISP is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
CONFIG_BACKLIGHT_LM3533=y
# CONFIG_BACKLIGHT_OMAP1 is not set
CONFIG_BACKLIGHT_PWM=m
CONFIG_BACKLIGHT_DA903X=m
# CONFIG_BACKLIGHT_DA9052 is not set
# CONFIG_BACKLIGHT_MAX8925 is not set
# CONFIG_BACKLIGHT_QCOM_WLED is not set
CONFIG_BACKLIGHT_ADP5520=m
# CONFIG_BACKLIGHT_ADP8860 is not set
CONFIG_BACKLIGHT_ADP8870=m
# CONFIG_BACKLIGHT_88PM860X is not set
CONFIG_BACKLIGHT_PCF50633=m
CONFIG_BACKLIGHT_AAT2870=m
CONFIG_BACKLIGHT_LM3630A=m
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_PANDORA is not set
# CONFIG_BACKLIGHT_SKY81452 is not set
CONFIG_BACKLIGHT_TPS65217=m
CONFIG_BACKLIGHT_AS3711=m
# CONFIG_BACKLIGHT_GPIO is not set
CONFIG_BACKLIGHT_LV5207LP=y
CONFIG_BACKLIGHT_BD6107=m
CONFIG_BACKLIGHT_ARCXCNN=m
# CONFIG_BACKLIGHT_LED is not set
# end of Backlight & LCD device support

CONFIG_VGASTATE=y
# CONFIG_LOGO is not set
# end of Graphics support

CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_DMAENGINE_PCM=y
CONFIG_SND_HWDEP=y
CONFIG_SND_SEQ_DEVICE=y
CONFIG_SND_RAWMIDI=y
CONFIG_SND_JACK=y
# CONFIG_SND_OSSEMUL is not set
CONFIG_SND_PCM_TIMER=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
CONFIG_SND_SUPPORT_OLD_API=y
# CONFIG_SND_PROC_FS is not set
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_CTL_FAST_LOOKUP=y
# CONFIG_SND_DEBUG is not set
# CONFIG_SND_CTL_INPUT_VALIDATION is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQ_DUMMY=y
CONFIG_SND_SEQ_MIDI_EVENT=y
CONFIG_SND_SEQ_MIDI=y
CONFIG_SND_AC97_CODEC=m
# CONFIG_SND_DRIVERS is not set
# CONFIG_SND_PCI is not set

#
# HD-Audio
#
# end of HD-Audio

CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_SPI=y
CONFIG_SND_FIREWIRE=y
CONFIG_SND_FIREWIRE_LIB=y
CONFIG_SND_DICE=y
CONFIG_SND_OXFW=y
CONFIG_SND_ISIGHT=m
CONFIG_SND_FIREWORKS=m
# CONFIG_SND_BEBOB is not set
CONFIG_SND_FIREWIRE_DIGI00X=y
# CONFIG_SND_FIREWIRE_TASCAM is not set
CONFIG_SND_FIREWIRE_MOTU=m
# CONFIG_SND_FIREFACE is not set
CONFIG_SND_SOC=y
CONFIG_SND_SOC_AC97_BUS=y
CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
# CONFIG_SND_SOC_ADI is not set
# CONFIG_SND_SOC_AMD_ACP is not set
# CONFIG_SND_AMD_ACP_CONFIG is not set
# CONFIG_SND_SOC_APPLE_MCA is not set
CONFIG_SND_ATMEL_SOC=m
# CONFIG_SND_ATMEL_SOC_CLASSD is not set
# CONFIG_SND_ATMEL_SOC_PDMIC is not set
# CONFIG_SND_ATMEL_SOC_I2S is not set
# CONFIG_SND_SOC_MIKROE_PROTO is not set
# CONFIG_SND_MCHP_SOC_I2S_MCC is not set
# CONFIG_SND_MCHP_SOC_SPDIFTX is not set
# CONFIG_SND_MCHP_SOC_SPDIFRX is not set
# CONFIG_SND_MCHP_SOC_PDMC is not set
# CONFIG_SND_BCM2835_SOC_I2S is not set
# CONFIG_SND_SOC_CYGNUS is not set
# CONFIG_SND_BCM63XX_I2S_WHISTLER is not set
# CONFIG_SND_EP93XX_SOC is not set
CONFIG_SND_DESIGNWARE_I2S=y
CONFIG_SND_DESIGNWARE_PCM=y

#
# SoC Audio for Freescale CPUs
#

#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
CONFIG_SND_SOC_FSL_SAI=m
# CONFIG_SND_SOC_FSL_MQS is not set
# CONFIG_SND_SOC_FSL_AUDMIX is not set
CONFIG_SND_SOC_FSL_SSI=m
CONFIG_SND_SOC_FSL_SPDIF=m
CONFIG_SND_SOC_FSL_ESAI=y
# CONFIG_SND_SOC_FSL_MICFIL is not set
# CONFIG_SND_SOC_FSL_XCVR is not set
# CONFIG_SND_SOC_FSL_AUD2HTX is not set
CONFIG_SND_SOC_FSL_UTILS=m
# CONFIG_SND_SOC_FSL_RPMSG is not set
CONFIG_SND_SOC_IMX_AUDMUX=y
# CONFIG_SND_IMX_SOC is not set
# end of SoC Audio for Freescale CPUs

CONFIG_SND_I2S_HI6210_I2S=m
# CONFIG_SND_JZ4740_SOC_I2S is not set
# CONFIG_SND_KIRKWOOD_SOC is not set
# CONFIG_SND_SOC_IMG is not set
CONFIG_SND_SOC_INTEL_SST_TOPLEVEL=y
# CONFIG_SND_SOC_INTEL_KEEMBAY is not set
# CONFIG_SND_SOC_INTEL_AVS is not set
CONFIG_SND_SOC_INTEL_MACH=y
# CONFIG_SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES is not set
# CONFIG_SND_SOC_MT8186 is not set
# CONFIG_SND_SOC_MTK_BTCVSD is not set
# CONFIG_SND_SOC_MT8195 is not set

#
# ASoC support for Amlogic platforms
#
# CONFIG_SND_MESON_AIU is not set
# CONFIG_SND_MESON_AXG_FRDDR is not set
# CONFIG_SND_MESON_AXG_TODDR is not set
# CONFIG_SND_MESON_AXG_TDMIN is not set
# CONFIG_SND_MESON_AXG_TDMOUT is not set
# CONFIG_SND_MESON_AXG_SOUND_CARD is not set
# CONFIG_SND_MESON_AXG_SPDIFOUT is not set
# CONFIG_SND_MESON_AXG_SPDIFIN is not set
# CONFIG_SND_MESON_AXG_PDM is not set
# CONFIG_SND_MESON_GX_SOUND_CARD is not set
# CONFIG_SND_MESON_G12A_TOACODEC is not set
# CONFIG_SND_MESON_G12A_TOHDMITX is not set
# CONFIG_SND_SOC_MESON_T9015 is not set
# end of ASoC support for Amlogic platforms

# CONFIG_SND_MXS_SOC is not set
# CONFIG_SND_PXA2XX_SOC is not set
# CONFIG_SND_SOC_QCOM is not set
# CONFIG_SND_SOC_ROCKCHIP is not set
# CONFIG_SND_SOC_SAMSUNG is not set

#
# SoC Audio support for Renesas SoCs
#
# CONFIG_SND_SOC_SH4_FSI is not set
# CONFIG_SND_SOC_RCAR is not set
# CONFIG_SND_SOC_RZ is not set
# end of SoC Audio support for Renesas SoCs

# CONFIG_SND_SOC_SOF_TOPLEVEL is not set
# CONFIG_SND_SOC_SPRD is not set
# CONFIG_SND_SOC_STI is not set

#
# STMicroelectronics STM32 SOC audio support
#
# CONFIG_SND_SOC_STM32_SAI is not set
# CONFIG_SND_SOC_STM32_I2S is not set
# CONFIG_SND_SOC_STM32_SPDIFRX is not set
# end of STMicroelectronics STM32 SOC audio support

#
# Allwinner SoC Audio support
#
# CONFIG_SND_SUN4I_CODEC is not set
# CONFIG_SND_SUN8I_CODEC is not set
# CONFIG_SND_SUN8I_CODEC_ANALOG is not set
# CONFIG_SND_SUN50I_CODEC_ANALOG is not set
# CONFIG_SND_SUN4I_I2S is not set
# CONFIG_SND_SUN4I_SPDIF is not set
# CONFIG_SND_SUN50I_DMIC is not set
# end of Allwinner SoC Audio support

#
# Audio support for Texas Instruments SoCs
#

#
# Texas Instruments DAI support for:
#
# CONFIG_SND_SOC_DAVINCI_ASP is not set
# CONFIG_SND_SOC_DAVINCI_MCASP is not set
# CONFIG_SND_SOC_DAVINCI_VCIF is not set
# CONFIG_SND_SOC_OMAP_DMIC is not set
# CONFIG_SND_SOC_OMAP_MCBSP is not set
# CONFIG_SND_SOC_OMAP_MCPDM is not set

#
# Audio support for boards with Texas Instruments SoCs
#
# CONFIG_SND_SOC_OMAP3_TWL4030 is not set
# CONFIG_SND_SOC_OMAP_HDMI is not set
# CONFIG_SND_SOC_J721E_EVM is not set
# end of Audio support for Texas Instruments SoCs

# CONFIG_SND_SOC_UNIPHIER is not set
# CONFIG_SND_SOC_XILINX_I2S is not set
# CONFIG_SND_SOC_XILINX_AUDIO_FORMATTER is not set
# CONFIG_SND_SOC_XILINX_SPDIF is not set
# CONFIG_SND_SOC_XTFPGA_I2S is not set
CONFIG_SND_SOC_I2C_AND_SPI=y

#
# CODEC drivers
#
# CONFIG_SND_SOC_ALL_CODECS is not set
CONFIG_SND_SOC_AC97_CODEC=m
CONFIG_SND_SOC_ADAU_UTILS=y
# CONFIG_SND_SOC_ADAU1372_I2C is not set
# CONFIG_SND_SOC_ADAU1372_SPI is not set
CONFIG_SND_SOC_ADAU1701=m
CONFIG_SND_SOC_ADAU17X1=y
CONFIG_SND_SOC_ADAU1761=y
CONFIG_SND_SOC_ADAU1761_I2C=y
CONFIG_SND_SOC_ADAU1761_SPI=m
CONFIG_SND_SOC_ADAU7002=m
# CONFIG_SND_SOC_ADAU7118_HW is not set
# CONFIG_SND_SOC_ADAU7118_I2C is not set
# CONFIG_SND_SOC_AK4104 is not set
# CONFIG_SND_SOC_AK4118 is not set
# CONFIG_SND_SOC_AK4375 is not set
# CONFIG_SND_SOC_AK4458 is not set
CONFIG_SND_SOC_AK4554=m
CONFIG_SND_SOC_AK4613=y
CONFIG_SND_SOC_AK4642=y
# CONFIG_SND_SOC_AK5386 is not set
CONFIG_SND_SOC_AK5558=m
# CONFIG_SND_SOC_ALC5623 is not set
# CONFIG_SND_SOC_AW8738 is not set
CONFIG_SND_SOC_BD28623=y
CONFIG_SND_SOC_BT_SCO=m
# CONFIG_SND_SOC_CPCAP is not set
CONFIG_SND_SOC_CS35L32=y
# CONFIG_SND_SOC_CS35L33 is not set
CONFIG_SND_SOC_CS35L34=y
CONFIG_SND_SOC_CS35L35=y
# CONFIG_SND_SOC_CS35L36 is not set
# CONFIG_SND_SOC_CS35L41_SPI is not set
# CONFIG_SND_SOC_CS35L41_I2C is not set
# CONFIG_SND_SOC_CS35L45_SPI is not set
# CONFIG_SND_SOC_CS35L45_I2C is not set
CONFIG_SND_SOC_CS42L42_CORE=m
CONFIG_SND_SOC_CS42L42=m
CONFIG_SND_SOC_CS42L51=m
CONFIG_SND_SOC_CS42L51_I2C=m
CONFIG_SND_SOC_CS42L73=m
# CONFIG_SND_SOC_CS42L83 is not set
# CONFIG_SND_SOC_CS4234 is not set
CONFIG_SND_SOC_CS4265=y
CONFIG_SND_SOC_CS4270=m
CONFIG_SND_SOC_CS4271=y
# CONFIG_SND_SOC_CS4271_I2C is not set
CONFIG_SND_SOC_CS4271_SPI=y
CONFIG_SND_SOC_CS42XX8=m
CONFIG_SND_SOC_CS42XX8_I2C=m
CONFIG_SND_SOC_CS43130=y
# CONFIG_SND_SOC_CS4341 is not set
# CONFIG_SND_SOC_CS4349 is not set
CONFIG_SND_SOC_CS53L30=m
# CONFIG_SND_SOC_CX2072X is not set
# CONFIG_SND_SOC_JZ4740_CODEC is not set
# CONFIG_SND_SOC_JZ4725B_CODEC is not set
# CONFIG_SND_SOC_JZ4760_CODEC is not set
# CONFIG_SND_SOC_JZ4770_CODEC is not set
# CONFIG_SND_SOC_DA7213 is not set
# CONFIG_SND_SOC_DMIC is not set
# CONFIG_SND_SOC_ES7134 is not set
# CONFIG_SND_SOC_ES7241 is not set
# CONFIG_SND_SOC_ES8316 is not set
# CONFIG_SND_SOC_ES8326 is not set
CONFIG_SND_SOC_ES8328=m
CONFIG_SND_SOC_ES8328_I2C=m
# CONFIG_SND_SOC_ES8328_SPI is not set
CONFIG_SND_SOC_GTM601=m
# CONFIG_SND_SOC_HDA is not set
# CONFIG_SND_SOC_ICS43432 is not set
CONFIG_SND_SOC_INNO_RK3036=y
# CONFIG_SND_SOC_LOCHNAGAR_SC is not set
# CONFIG_SND_SOC_MAX98088 is not set
# CONFIG_SND_SOC_MAX98357A is not set
CONFIG_SND_SOC_MAX98504=m
CONFIG_SND_SOC_MAX9867=y
# CONFIG_SND_SOC_MAX98927 is not set
# CONFIG_SND_SOC_MAX98520 is not set
# CONFIG_SND_SOC_MAX98373_I2C is not set
# CONFIG_SND_SOC_MAX98390 is not set
# CONFIG_SND_SOC_MAX98396 is not set
# CONFIG_SND_SOC_MAX9860 is not set
# CONFIG_SND_SOC_MSM8916_WCD_ANALOG is not set
CONFIG_SND_SOC_MSM8916_WCD_DIGITAL=y
CONFIG_SND_SOC_PCM1681=m
CONFIG_SND_SOC_PCM1789=m
CONFIG_SND_SOC_PCM1789_I2C=m
CONFIG_SND_SOC_PCM179X=y
CONFIG_SND_SOC_PCM179X_I2C=y
CONFIG_SND_SOC_PCM179X_SPI=y
CONFIG_SND_SOC_PCM186X=y
# CONFIG_SND_SOC_PCM186X_I2C is not set
CONFIG_SND_SOC_PCM186X_SPI=y
# CONFIG_SND_SOC_PCM3060_I2C is not set
# CONFIG_SND_SOC_PCM3060_SPI is not set
CONFIG_SND_SOC_PCM3168A=m
# CONFIG_SND_SOC_PCM3168A_I2C is not set
CONFIG_SND_SOC_PCM3168A_SPI=m
# CONFIG_SND_SOC_PCM5102A is not set
CONFIG_SND_SOC_PCM512x=y
CONFIG_SND_SOC_PCM512x_I2C=m
CONFIG_SND_SOC_PCM512x_SPI=y
# CONFIG_SND_SOC_RK3328 is not set
# CONFIG_SND_SOC_RK817 is not set
CONFIG_SND_SOC_RL6231=y
CONFIG_SND_SOC_RT5616=y
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_RT5640 is not set
# CONFIG_SND_SOC_RT5659 is not set
# CONFIG_SND_SOC_RT9120 is not set
CONFIG_SND_SOC_SGTL5000=m
CONFIG_SND_SOC_SIGMADSP=y
CONFIG_SND_SOC_SIGMADSP_I2C=m
CONFIG_SND_SOC_SIGMADSP_REGMAP=y
CONFIG_SND_SOC_SIMPLE_AMPLIFIER=m
# CONFIG_SND_SOC_SIMPLE_MUX is not set
# CONFIG_SND_SOC_SPDIF is not set
# CONFIG_SND_SOC_SRC4XXX_I2C is not set
CONFIG_SND_SOC_SSM2305=m
# CONFIG_SND_SOC_SSM2518 is not set
CONFIG_SND_SOC_SSM2602=y
CONFIG_SND_SOC_SSM2602_SPI=y
# CONFIG_SND_SOC_SSM2602_I2C is not set
CONFIG_SND_SOC_SSM4567=y
CONFIG_SND_SOC_STA32X=y
# CONFIG_SND_SOC_STA350 is not set
# CONFIG_SND_SOC_STI_SAS is not set
# CONFIG_SND_SOC_TAS2552 is not set
# CONFIG_SND_SOC_TAS2562 is not set
# CONFIG_SND_SOC_TAS2764 is not set
# CONFIG_SND_SOC_TAS2770 is not set
# CONFIG_SND_SOC_TAS2780 is not set
# CONFIG_SND_SOC_TAS5086 is not set
# CONFIG_SND_SOC_TAS571X is not set
# CONFIG_SND_SOC_TAS5720 is not set
# CONFIG_SND_SOC_TAS5805M is not set
# CONFIG_SND_SOC_TAS6424 is not set
CONFIG_SND_SOC_TDA7419=y
# CONFIG_SND_SOC_TFA9879 is not set
# CONFIG_SND_SOC_TFA989X is not set
# CONFIG_SND_SOC_TLV320ADC3XXX is not set
CONFIG_SND_SOC_TLV320AIC23=m
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
CONFIG_SND_SOC_TLV320AIC23_SPI=m
CONFIG_SND_SOC_TLV320AIC31XX=y
CONFIG_SND_SOC_TLV320AIC32X4=y
# CONFIG_SND_SOC_TLV320AIC32X4_I2C is not set
CONFIG_SND_SOC_TLV320AIC32X4_SPI=y
# CONFIG_SND_SOC_TLV320AIC3X_I2C is not set
# CONFIG_SND_SOC_TLV320AIC3X_SPI is not set
# CONFIG_SND_SOC_TLV320ADCX140 is not set
# CONFIG_SND_SOC_TS3A227E is not set
CONFIG_SND_SOC_TSCS42XX=y
# CONFIG_SND_SOC_TSCS454 is not set
# CONFIG_SND_SOC_UDA1334 is not set
# CONFIG_SND_SOC_WCD9335 is not set
# CONFIG_SND_SOC_WCD934X is not set
# CONFIG_SND_SOC_WM8510 is not set
CONFIG_SND_SOC_WM8523=m
CONFIG_SND_SOC_WM8524=m
CONFIG_SND_SOC_WM8580=y
CONFIG_SND_SOC_WM8711=y
# CONFIG_SND_SOC_WM8728 is not set
# CONFIG_SND_SOC_WM8731_I2C is not set
# CONFIG_SND_SOC_WM8731_SPI is not set
CONFIG_SND_SOC_WM8737=m
CONFIG_SND_SOC_WM8741=y
CONFIG_SND_SOC_WM8750=y
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8770 is not set
CONFIG_SND_SOC_WM8776=y
# CONFIG_SND_SOC_WM8782 is not set
CONFIG_SND_SOC_WM8804=m
# CONFIG_SND_SOC_WM8804_I2C is not set
CONFIG_SND_SOC_WM8804_SPI=m
CONFIG_SND_SOC_WM8903=m
# CONFIG_SND_SOC_WM8904 is not set
# CONFIG_SND_SOC_WM8940 is not set
CONFIG_SND_SOC_WM8960=m
# CONFIG_SND_SOC_WM8974 is not set
CONFIG_SND_SOC_WM8978=m
CONFIG_SND_SOC_WM8985=m
# CONFIG_SND_SOC_ZL38060 is not set
# CONFIG_SND_SOC_MAX9759 is not set
CONFIG_SND_SOC_MT6351=m
# CONFIG_SND_SOC_MT6358 is not set
# CONFIG_SND_SOC_MT6660 is not set
# CONFIG_SND_SOC_NAU8315 is not set
CONFIG_SND_SOC_NAU8540=y
# CONFIG_SND_SOC_NAU8810 is not set
# CONFIG_SND_SOC_NAU8821 is not set
# CONFIG_SND_SOC_NAU8822 is not set
CONFIG_SND_SOC_NAU8824=y
CONFIG_SND_SOC_TPA6130A2=y
# CONFIG_SND_SOC_LPASS_WSA_MACRO is not set
# CONFIG_SND_SOC_LPASS_VA_MACRO is not set
# CONFIG_SND_SOC_LPASS_RX_MACRO is not set
# CONFIG_SND_SOC_LPASS_TX_MACRO is not set
# end of CODEC drivers

CONFIG_SND_SIMPLE_CARD_UTILS=m
CONFIG_SND_SIMPLE_CARD=m
CONFIG_SND_AUDIO_GRAPH_CARD=m
# CONFIG_SND_AUDIO_GRAPH_CARD2 is not set
# CONFIG_SND_TEST_COMPONENT is not set
# CONFIG_SND_VIRTIO is not set
CONFIG_AC97_BUS=y
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
CONFIG_MEMSTICK=m
# CONFIG_MEMSTICK_DEBUG is not set

#
# MemoryStick drivers
#
CONFIG_MEMSTICK_UNSAFE_RESUME=y

#
# MemoryStick Host Controller Drivers
#
# CONFIG_MEMSTICK_TIFM_MS is not set
# CONFIG_MEMSTICK_JMICRON_38X is not set
CONFIG_MEMSTICK_R592=m
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=m
CONFIG_LEDS_CLASS_FLASH=m
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
CONFIG_LEDS_88PM860X=m
# CONFIG_LEDS_AN30259A is not set
# CONFIG_LEDS_ARIEL is not set
# CONFIG_LEDS_AW2013 is not set
CONFIG_LEDS_BCM6328=m
CONFIG_LEDS_BCM6358=m
CONFIG_LEDS_CR0014114=m
# CONFIG_LEDS_EL15203000 is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3532 is not set
CONFIG_LEDS_LM3533=m
CONFIG_LEDS_LM3642=m
CONFIG_LEDS_LM3692X=m
# CONFIG_LEDS_S3C24XX is not set
# CONFIG_LEDS_COBALT_QUBE is not set
CONFIG_LEDS_GPIO=m
CONFIG_LEDS_LP3944=m
CONFIG_LEDS_LP3952=m
# CONFIG_LEDS_LP50XX is not set
CONFIG_LEDS_LP55XX_COMMON=m
CONFIG_LEDS_LP5521=m
# CONFIG_LEDS_LP5523 is not set
CONFIG_LEDS_LP5562=m
CONFIG_LEDS_LP8501=m
CONFIG_LEDS_LP8860=m
# CONFIG_LEDS_PCA955X is not set
CONFIG_LEDS_PCA963X=m
CONFIG_LEDS_WM8350=m
CONFIG_LEDS_DA903X=m
CONFIG_LEDS_DA9052=m
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_REGULATOR is not set
CONFIG_LEDS_BD2802=m
CONFIG_LEDS_LT3593=m
CONFIG_LEDS_ADP5520=m
CONFIG_LEDS_MC13783=m
CONFIG_LEDS_NS2=m
CONFIG_LEDS_NETXBIG=m
CONFIG_LEDS_TCA6507=m
CONFIG_LEDS_TLC591XX=m
CONFIG_LEDS_LM355x=m
# CONFIG_LEDS_OT200 is not set
# CONFIG_LEDS_MENF21BMC is not set
CONFIG_LEDS_IS31FL319X=m
# CONFIG_LEDS_IS31FL32XX is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
CONFIG_LEDS_MLXREG=m
CONFIG_LEDS_USER=m
# CONFIG_LEDS_SPI_BYTE is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set
CONFIG_LEDS_TPS6105X=m
# CONFIG_LEDS_IP30 is not set
# CONFIG_LEDS_BCM63138 is not set
# CONFIG_LEDS_LGM is not set

#
# Flash and Torch LED drivers
#
CONFIG_LEDS_AAT1290=m
# CONFIG_LEDS_AS3645A is not set
CONFIG_LEDS_KTD2692=m
# CONFIG_LEDS_LM3601X is not set
CONFIG_LEDS_MAX77693=m
# CONFIG_LEDS_RT4505 is not set
# CONFIG_LEDS_RT8515 is not set
# CONFIG_LEDS_SGM3140 is not set

#
# RGB LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
CONFIG_LEDS_TRIGGER_ACTIVITY=y
CONFIG_LEDS_TRIGGER_GPIO=y
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
CONFIG_LEDS_TRIGGER_CAMERA=y
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
# CONFIG_LEDS_TRIGGER_AUDIO is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC_SUPPORT=y
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
# CONFIG_RTC_NVMEM is not set

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
CONFIG_RTC_INTF_PROC=y
# CONFIG_RTC_INTF_DEV is not set
CONFIG_RTC_DRV_TEST=y

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_88PM860X=m
CONFIG_RTC_DRV_88PM80X=y
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
CONFIG_RTC_DRV_ABX80X=m
# CONFIG_RTC_DRV_BRCMSTB is not set
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1307_CENTURY=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_RTC_DRV_DS1672=m
CONFIG_RTC_DRV_HYM8563=m
CONFIG_RTC_DRV_MAX6900=m
# CONFIG_RTC_DRV_MAX8907 is not set
CONFIG_RTC_DRV_MAX8925=m
CONFIG_RTC_DRV_MAX8998=y
# CONFIG_RTC_DRV_MAX77686 is not set
# CONFIG_RTC_DRV_NCT3018Y is not set
CONFIG_RTC_DRV_RK808=m
CONFIG_RTC_DRV_RS5C372=y
CONFIG_RTC_DRV_ISL1208=y
CONFIG_RTC_DRV_ISL12022=y
CONFIG_RTC_DRV_ISL12026=y
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8523=y
CONFIG_RTC_DRV_PCF85063=y
CONFIG_RTC_DRV_PCF85363=m
CONFIG_RTC_DRV_PCF8563=y
CONFIG_RTC_DRV_PCF8583=y
CONFIG_RTC_DRV_M41T80=y
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_BQ32K=y
# CONFIG_RTC_DRV_TWL4030 is not set
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=y
# CONFIG_RTC_DRV_RX8010 is not set
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
CONFIG_RTC_DRV_EM3027=y
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
CONFIG_RTC_DRV_RV8803=y
# CONFIG_RTC_DRV_S5M is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
CONFIG_RTC_DRV_M41T93=m
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
CONFIG_RTC_DRV_DS1305=y
# CONFIG_RTC_DRV_DS1343 is not set
CONFIG_RTC_DRV_DS1347=m
CONFIG_RTC_DRV_DS1390=m
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
CONFIG_RTC_DRV_MAX6902=y
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
CONFIG_RTC_DRV_PCF2127=m
# CONFIG_RTC_DRV_RV3029C2 is not set
CONFIG_RTC_DRV_RX6110=y

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
CONFIG_RTC_DRV_DS1742=m
# CONFIG_RTC_DRV_DS2404 is not set
CONFIG_RTC_DRV_DA9052=m
CONFIG_RTC_DRV_DA9055=m
CONFIG_RTC_DRV_DA9063=m
# CONFIG_RTC_DRV_EFI is not set
CONFIG_RTC_DRV_STK17TA8=m
CONFIG_RTC_DRV_M48T86=y
CONFIG_RTC_DRV_M48T35=y
CONFIG_RTC_DRV_M48T59=y
CONFIG_RTC_DRV_MSM6242=m
# CONFIG_RTC_DRV_BQ4802 is not set
CONFIG_RTC_DRV_RP5C01=y
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_GAMECUBE is not set
# CONFIG_RTC_DRV_WM8350 is not set
# CONFIG_RTC_DRV_SC27XX is not set
CONFIG_RTC_DRV_SPEAR=y
CONFIG_RTC_DRV_PCF50633=m
CONFIG_RTC_DRV_ZYNQMP=y

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_ASM9260 is not set
# CONFIG_RTC_DRV_DAVINCI is not set
# CONFIG_RTC_DRV_DIGICOLOR is not set
# CONFIG_RTC_DRV_FSL_FTM_ALARM is not set
# CONFIG_RTC_DRV_MESON is not set
# CONFIG_RTC_DRV_MESON_VRTC is not set
# CONFIG_RTC_DRV_OMAP is not set
# CONFIG_RTC_DRV_S3C is not set
# CONFIG_RTC_DRV_EP93XX is not set
# CONFIG_RTC_DRV_AT91RM9200 is not set
# CONFIG_RTC_DRV_AT91SAM9 is not set
# CONFIG_RTC_DRV_RZN1 is not set
# CONFIG_RTC_DRV_GENERIC is not set
# CONFIG_RTC_DRV_VT8500 is not set
# CONFIG_RTC_DRV_SUN6I is not set
# CONFIG_RTC_DRV_SUNXI is not set
# CONFIG_RTC_DRV_MV is not set
# CONFIG_RTC_DRV_ARMADA38X is not set
# CONFIG_RTC_DRV_CADENCE is not set
CONFIG_RTC_DRV_FTRTC010=m
# CONFIG_RTC_DRV_STMP is not set
# CONFIG_RTC_DRV_MC13XXX is not set
# CONFIG_RTC_DRV_JZ4740 is not set
# CONFIG_RTC_DRV_LPC24XX is not set
# CONFIG_RTC_DRV_LPC32XX is not set
# CONFIG_RTC_DRV_PM8XXX is not set
# CONFIG_RTC_DRV_TEGRA is not set
# CONFIG_RTC_DRV_MXC is not set
# CONFIG_RTC_DRV_MXC_V2 is not set
# CONFIG_RTC_DRV_SNVS is not set
# CONFIG_RTC_DRV_MOXART is not set
# CONFIG_RTC_DRV_MT2712 is not set
# CONFIG_RTC_DRV_MT6397 is not set
# CONFIG_RTC_DRV_MT7622 is not set
# CONFIG_RTC_DRV_XGENE is not set
CONFIG_RTC_DRV_R7301=y
# CONFIG_RTC_DRV_STM32 is not set
# CONFIG_RTC_DRV_RTD119X is not set
# CONFIG_RTC_DRV_ASPEED is not set
# CONFIG_RTC_DRV_TI_K3 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
# CONFIG_RTC_DRV_MSC313 is not set
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_SW_SYNC=y
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options

CONFIG_AUXDISPLAY=y
CONFIG_CHARLCD=y
CONFIG_LINEDISP=m
CONFIG_HD44780_COMMON=y
CONFIG_HD44780=y
CONFIG_IMG_ASCII_LCD=m
# CONFIG_LCD2S is not set
CONFIG_PARPORT_PANEL=m
CONFIG_PANEL_PARPORT=0
CONFIG_PANEL_PROFILE=5
CONFIG_PANEL_CHANGE_MESSAGE=y
CONFIG_PANEL_BOOT_MESSAGE=""
# CONFIG_CHARLCD_BL_OFF is not set
# CONFIG_CHARLCD_BL_ON is not set
CONFIG_CHARLCD_BL_FLASH=y
CONFIG_PANEL=m
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_UIO_DMEM_GENIRQ=m
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
CONFIG_UIO_NETX=m
CONFIG_UIO_PRUSS=m
CONFIG_UIO_MF624=m
# CONFIG_UIO_DFL is not set
# CONFIG_VFIO is not set
CONFIG_VIRT_DRIVERS=y
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
# CONFIG_VIRTIO_PCI_LEGACY is not set
# CONFIG_VIRTIO_BALLOON is not set
CONFIG_VIRTIO_MMIO=y
# CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES is not set
CONFIG_VHOST_MENU=y
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
CONFIG_COMEDI=y
# CONFIG_COMEDI_DEBUG is not set
CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB=2048
CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB=20480
# CONFIG_COMEDI_MISC_DRIVERS is not set
CONFIG_COMEDI_ISA_DRIVERS=y
CONFIG_COMEDI_PCL711=y
# CONFIG_COMEDI_PCL724 is not set
CONFIG_COMEDI_PCL726=m
CONFIG_COMEDI_PCL730=m
CONFIG_COMEDI_PCL812=y
# CONFIG_COMEDI_PCL816 is not set
CONFIG_COMEDI_PCL818=m
CONFIG_COMEDI_PCM3724=m
CONFIG_COMEDI_AMPLC_DIO200_ISA=y
CONFIG_COMEDI_AMPLC_PC236_ISA=y
CONFIG_COMEDI_AMPLC_PC263_ISA=y
# CONFIG_COMEDI_RTI800 is not set
CONFIG_COMEDI_RTI802=y
# CONFIG_COMEDI_DAC02 is not set
CONFIG_COMEDI_DAS16M1=y
# CONFIG_COMEDI_DAS08_ISA is not set
CONFIG_COMEDI_DAS16=m
CONFIG_COMEDI_DAS800=m
# CONFIG_COMEDI_DAS1800 is not set
CONFIG_COMEDI_DAS6402=m
CONFIG_COMEDI_DT2801=y
CONFIG_COMEDI_DT2811=m
CONFIG_COMEDI_DT2814=y
CONFIG_COMEDI_DT2815=m
CONFIG_COMEDI_DT2817=m
CONFIG_COMEDI_DT282X=m
# CONFIG_COMEDI_DMM32AT is not set
CONFIG_COMEDI_FL512=y
CONFIG_COMEDI_AIO_AIO12_8=m
CONFIG_COMEDI_AIO_IIRO_16=y
# CONFIG_COMEDI_II_PCI20KC is not set
CONFIG_COMEDI_C6XDIGIO=y
CONFIG_COMEDI_MPC624=m
CONFIG_COMEDI_ADQ12B=y
# CONFIG_COMEDI_NI_AT_A2150 is not set
# CONFIG_COMEDI_NI_AT_AO is not set
CONFIG_COMEDI_NI_ATMIO=y
# CONFIG_COMEDI_NI_ATMIO16D is not set
CONFIG_COMEDI_NI_LABPC_ISA=m
# CONFIG_COMEDI_PCMAD is not set
CONFIG_COMEDI_PCMDA12=y
# CONFIG_COMEDI_PCMMIO is not set
CONFIG_COMEDI_PCMUIO=y
CONFIG_COMEDI_MULTIQ3=y
# CONFIG_COMEDI_S526 is not set
CONFIG_COMEDI_PCI_DRIVERS=m
CONFIG_COMEDI_8255_PCI=m
CONFIG_COMEDI_ADDI_WATCHDOG=m
CONFIG_COMEDI_ADDI_APCI_1032=m
CONFIG_COMEDI_ADDI_APCI_1500=m
CONFIG_COMEDI_ADDI_APCI_1516=m
CONFIG_COMEDI_ADDI_APCI_1564=m
CONFIG_COMEDI_ADDI_APCI_16XX=m
CONFIG_COMEDI_ADDI_APCI_2032=m
# CONFIG_COMEDI_ADDI_APCI_2200 is not set
CONFIG_COMEDI_ADDI_APCI_3120=m
CONFIG_COMEDI_ADDI_APCI_3501=m
CONFIG_COMEDI_ADDI_APCI_3XXX=m
CONFIG_COMEDI_ADL_PCI6208=m
CONFIG_COMEDI_ADL_PCI7X3X=m
# CONFIG_COMEDI_ADL_PCI8164 is not set
# CONFIG_COMEDI_ADL_PCI9111 is not set
CONFIG_COMEDI_ADL_PCI9118=m
CONFIG_COMEDI_ADV_PCI1710=m
CONFIG_COMEDI_ADV_PCI1720=m
# CONFIG_COMEDI_ADV_PCI1723 is not set
CONFIG_COMEDI_ADV_PCI1724=m
# CONFIG_COMEDI_ADV_PCI1760 is not set
# CONFIG_COMEDI_ADV_PCI_DIO is not set
CONFIG_COMEDI_AMPLC_DIO200_PCI=m
# CONFIG_COMEDI_AMPLC_PC236_PCI is not set
# CONFIG_COMEDI_AMPLC_PC263_PCI is not set
CONFIG_COMEDI_AMPLC_PCI224=m
CONFIG_COMEDI_AMPLC_PCI230=m
CONFIG_COMEDI_CONTEC_PCI_DIO=m
CONFIG_COMEDI_DAS08_PCI=m
CONFIG_COMEDI_DT3000=m
# CONFIG_COMEDI_DYNA_PCI10XX is not set
CONFIG_COMEDI_GSC_HPDI=m
# CONFIG_COMEDI_MF6X4 is not set
CONFIG_COMEDI_ICP_MULTI=m
CONFIG_COMEDI_DAQBOARD2000=m
CONFIG_COMEDI_JR3_PCI=m
CONFIG_COMEDI_KE_COUNTER=m
# CONFIG_COMEDI_CB_PCIDAS64 is not set
CONFIG_COMEDI_CB_PCIDAS=m
CONFIG_COMEDI_CB_PCIDDA=m
# CONFIG_COMEDI_CB_PCIMDAS is not set
CONFIG_COMEDI_CB_PCIMDDA=m
CONFIG_COMEDI_ME4000=m
CONFIG_COMEDI_ME_DAQ=m
CONFIG_COMEDI_NI_6527=m
# CONFIG_COMEDI_NI_65XX is not set
# CONFIG_COMEDI_NI_660X is not set
CONFIG_COMEDI_NI_670X=m
# CONFIG_COMEDI_NI_LABPC_PCI is not set
# CONFIG_COMEDI_NI_PCIDIO is not set
# CONFIG_COMEDI_NI_PCIMIO is not set
CONFIG_COMEDI_RTD520=m
CONFIG_COMEDI_S626=m
CONFIG_COMEDI_8254=y
CONFIG_COMEDI_8255=y
# CONFIG_COMEDI_8255_SA is not set
# CONFIG_COMEDI_KCOMEDILIB is not set
CONFIG_COMEDI_AMPLC_DIO200=y
CONFIG_COMEDI_AMPLC_PC236=y
CONFIG_COMEDI_DAS08=m
CONFIG_COMEDI_NI_LABPC=m
CONFIG_COMEDI_NI_TIO=y
CONFIG_COMEDI_NI_ROUTING=y
# CONFIG_COMEDI_TESTS is not set
CONFIG_STAGING=y

#
# IIO staging drivers
#

#
# Accelerometers
#
CONFIG_ADIS16203=m
CONFIG_ADIS16240=m
# end of Accelerometers

#
# Analog to digital converters
#
CONFIG_AD7816=m
# end of Analog to digital converters

#
# Analog digital bi-direction converters
#
# CONFIG_ADT7316 is not set
# end of Analog digital bi-direction converters

#
# Direct Digital Synthesis
#
CONFIG_AD9832=y
CONFIG_AD9834=m
# end of Direct Digital Synthesis

#
# Network Analyzer, Impedance Converters
#
CONFIG_AD5933=y
# end of Network Analyzer, Impedance Converters

#
# Active energy metering IC
#
CONFIG_ADE7854=y
# CONFIG_ADE7854_I2C is not set
# CONFIG_ADE7854_SPI is not set
# end of Active energy metering IC

#
# Resolver to digital converters
#
CONFIG_AD2S1210=y
# end of Resolver to digital converters
# end of IIO staging drivers

# CONFIG_FB_SM750 is not set
# CONFIG_STAGING_MEDIA is not set
# CONFIG_STAGING_BOARD is not set
# CONFIG_FB_TFT is not set
# CONFIG_MOST_COMPONENTS is not set
CONFIG_BCM_VIDEOCORE=y
# CONFIG_BCM2835_VCHIQ is not set
# CONFIG_SND_BCM2835 is not set
# CONFIG_VIDEO_BCM2835 is not set
CONFIG_PI433=m
CONFIG_XIL_AXIS_FIFO=m
# CONFIG_FIELDBUS_DEV is not set
CONFIG_VME_BUS=y

#
# VME Bridge Drivers
#
CONFIG_VME_TSI148=y
# CONFIG_VME_FAKE is not set

#
# VME Device Drivers
#
CONFIG_VME_USER=m
# CONFIG_GOLDFISH is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
# CONFIG_OLPC_XO175 is not set
CONFIG_SURFACE_PLATFORMS=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Clock driver for ARM Reference designs
#
# CONFIG_CLK_ICST is not set
# CONFIG_CLK_SP810 is not set
# end of Clock driver for ARM Reference designs

# CONFIG_CLK_HSDK is not set
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_APPLE_NCO is not set
CONFIG_COMMON_CLK_MAX77686=m
CONFIG_COMMON_CLK_MAX9485=y
CONFIG_COMMON_CLK_RK808=m
# CONFIG_COMMON_CLK_HI655X is not set
# CONFIG_COMMON_CLK_SCMI is not set
# CONFIG_COMMON_CLK_SCPI is not set
# CONFIG_COMMON_CLK_SI5341 is not set
CONFIG_COMMON_CLK_SI5351=m
CONFIG_COMMON_CLK_SI514=y
# CONFIG_COMMON_CLK_SI544 is not set
CONFIG_COMMON_CLK_SI570=y
# CONFIG_COMMON_CLK_BM1880 is not set
CONFIG_COMMON_CLK_CDCE706=y
# CONFIG_COMMON_CLK_TPS68470 is not set
CONFIG_COMMON_CLK_CDCE925=m
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_EN7523 is not set
# CONFIG_COMMON_CLK_FSL_FLEXSPI is not set
# CONFIG_COMMON_CLK_FSL_SAI is not set
# CONFIG_COMMON_CLK_GEMINI is not set
# CONFIG_COMMON_CLK_LAN966X is not set
# CONFIG_COMMON_CLK_ASPEED is not set
# CONFIG_COMMON_CLK_S2MPS11 is not set
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_CLK_QORIQ is not set
# CONFIG_CLK_LS1028A_PLLDIG is not set
# CONFIG_COMMON_CLK_XGENE is not set
CONFIG_COMMON_CLK_PWM=y
# CONFIG_COMMON_CLK_OXNAS is not set
# CONFIG_COMMON_CLK_RS9_PCIE is not set
# CONFIG_COMMON_CLK_VC5 is not set
# CONFIG_COMMON_CLK_VC7 is not set
# CONFIG_COMMON_CLK_MMP2_AUDIO is not set
# CONFIG_COMMON_CLK_BD718XX is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
# CONFIG_CLK_ACTIONS is not set
# CONFIG_CLK_BAIKAL_T1 is not set
# CONFIG_CLK_BCM2711_DVP is not set
# CONFIG_CLK_BCM2835 is not set
# CONFIG_CLK_BCM_63XX is not set
# CONFIG_CLK_BCM_63XX_GATE is not set
# CONFIG_CLK_BCM_KONA is not set
# CONFIG_CLK_BCM_CYGNUS is not set
# CONFIG_CLK_BCM_HR2 is not set
# CONFIG_CLK_BCM_NSP is not set
# CONFIG_CLK_BCM_NS2 is not set
# CONFIG_CLK_BCM_SR is not set
# CONFIG_CLK_RASPBERRYPI is not set
# CONFIG_COMMON_CLK_HI3516CV300 is not set
# CONFIG_COMMON_CLK_HI3519 is not set
# CONFIG_COMMON_CLK_HI3559A is not set
# CONFIG_COMMON_CLK_HI3660 is not set
# CONFIG_COMMON_CLK_HI3670 is not set
# CONFIG_COMMON_CLK_HI3798CV200 is not set
# CONFIG_COMMON_CLK_HI6220 is not set
# CONFIG_RESET_HISI is not set
# CONFIG_STUB_CLK_HI6220 is not set
# CONFIG_STUB_CLK_HI3660 is not set
# CONFIG_COMMON_CLK_BOSTON is not set
# CONFIG_MXC_CLK is not set
# CONFIG_CLK_IMX8MM is not set
# CONFIG_CLK_IMX8MN is not set
# CONFIG_CLK_IMX8MP is not set
# CONFIG_CLK_IMX8MQ is not set
# CONFIG_CLK_IMX8ULP is not set
# CONFIG_CLK_IMX93 is not set

#
# Ingenic SoCs drivers
#
# CONFIG_INGENIC_CGU_JZ4740 is not set
# CONFIG_INGENIC_CGU_JZ4725B is not set
# CONFIG_INGENIC_CGU_JZ4760 is not set
# CONFIG_INGENIC_CGU_JZ4770 is not set
# CONFIG_INGENIC_CGU_JZ4780 is not set
# CONFIG_INGENIC_CGU_X1000 is not set
# CONFIG_INGENIC_CGU_X1830 is not set
# CONFIG_INGENIC_TCU_CLK is not set
# end of Ingenic SoCs drivers

# CONFIG_COMMON_CLK_KEYSTONE is not set
# CONFIG_TI_SYSCON_CLK is not set

#
# Clock driver for MediaTek SoC
#
# CONFIG_COMMON_CLK_MT2701 is not set
# CONFIG_COMMON_CLK_MT2712 is not set
# CONFIG_COMMON_CLK_MT6765 is not set
# CONFIG_COMMON_CLK_MT6779 is not set
# CONFIG_COMMON_CLK_MT6795 is not set
# CONFIG_COMMON_CLK_MT6797 is not set
# CONFIG_COMMON_CLK_MT7622 is not set
# CONFIG_COMMON_CLK_MT7629 is not set
# CONFIG_COMMON_CLK_MT7986 is not set
# CONFIG_COMMON_CLK_MT8135 is not set
# CONFIG_COMMON_CLK_MT8167 is not set
# CONFIG_COMMON_CLK_MT8173 is not set
# CONFIG_COMMON_CLK_MT8183 is not set
# CONFIG_COMMON_CLK_MT8186 is not set
# CONFIG_COMMON_CLK_MT8192 is not set
# CONFIG_COMMON_CLK_MT8195 is not set
# CONFIG_COMMON_CLK_MT8365 is not set
# CONFIG_COMMON_CLK_MT8516 is not set
# end of Clock driver for MediaTek SoC

#
# Clock support for Amlogic platforms
#
# end of Clock support for Amlogic platforms

# CONFIG_MSTAR_MSC313_MPLL is not set
# CONFIG_MCHP_CLK_MPFS is not set
# CONFIG_COMMON_CLK_PISTACHIO is not set
# CONFIG_COMMON_CLK_QCOM is not set
# CONFIG_CLK_MT7621 is not set
# CONFIG_CLK_RENESAS is not set
# CONFIG_COMMON_CLK_SAMSUNG is not set
# CONFIG_S3C2410_COMMON_CLK is not set
# CONFIG_S3C2412_COMMON_CLK is not set
# CONFIG_S3C2443_COMMON_CLK is not set
# CONFIG_CLK_SIFIVE is not set
# CONFIG_CLK_INTEL_SOCFPGA is not set
# CONFIG_SPRD_COMMON_CLK is not set
# CONFIG_CLK_STARFIVE_JH7100 is not set
CONFIG_CLK_SUNXI=y
CONFIG_CLK_SUNXI_CLOCKS=y
CONFIG_CLK_SUNXI_PRCM_SUN6I=y
CONFIG_CLK_SUNXI_PRCM_SUN8I=y
CONFIG_CLK_SUNXI_PRCM_SUN9I=y
# CONFIG_SUNXI_CCU is not set
# CONFIG_COMMON_CLK_TI_ADPLL is not set
# CONFIG_CLK_UNIPHIER is not set
# CONFIG_COMMON_CLK_VISCONTI is not set
# CONFIG_CLK_LGM_CGU is not set
CONFIG_XILINX_VCU=y
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_COMMON_CLK_ZYNQMP is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
# CONFIG_BCM2835_TIMER is not set
# CONFIG_BCM_KONA_TIMER is not set
# CONFIG_DAVINCI_TIMER is not set
# CONFIG_DIGICOLOR_TIMER is not set
# CONFIG_OMAP_DM_TIMER is not set
# CONFIG_DW_APB_TIMER is not set
# CONFIG_FTTMR010_TIMER is not set
# CONFIG_IXP4XX_TIMER is not set
# CONFIG_MESON6_TIMER is not set
# CONFIG_OWL_TIMER is not set
# CONFIG_RDA_TIMER is not set
# CONFIG_SUN4I_TIMER is not set
# CONFIG_SUN5I_HSTIMER is not set
# CONFIG_TEGRA_TIMER is not set
# CONFIG_VT8500_TIMER is not set
# CONFIG_NPCM7XX_TIMER is not set
# CONFIG_CADENCE_TTC_TIMER is not set
# CONFIG_ASM9260_TIMER is not set
# CONFIG_CLKSRC_DBX500_PRCMU is not set
# CONFIG_CLPS711X_TIMER is not set
# CONFIG_MXS_TIMER is not set
# CONFIG_NSPIRE_TIMER is not set
# CONFIG_INTEGRATOR_AP_TIMER is not set
# CONFIG_CLKSRC_PISTACHIO is not set
# CONFIG_CLKSRC_TI_32K is not set
# CONFIG_CLKSRC_STM32_LP is not set
# CONFIG_CLKSRC_MPS2 is not set
# CONFIG_ARC_TIMERS is not set
# CONFIG_ARM_TIMER_SP804 is not set
# CONFIG_ARMV7M_SYSTICK is not set
# CONFIG_ATMEL_PIT is not set
# CONFIG_ATMEL_ST is not set
# CONFIG_CLKSRC_SAMSUNG_PWM is not set
# CONFIG_FSL_FTM_TIMER is not set
# CONFIG_OXNAS_RPS_TIMER is not set
# CONFIG_MTK_TIMER is not set
# CONFIG_SPRD_TIMER is not set
# CONFIG_CLKSRC_JCORE_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_RENESAS_OSTM is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_CLKSRC_VERSATILE is not set
# CONFIG_CLKSRC_PXA is not set
# CONFIG_TIMER_IMX_SYS_CTR is not set
# CONFIG_CLKSRC_ST_LPC is not set
# CONFIG_GXP_TIMER is not set
CONFIG_RISCV_TIMER=y
# CONFIG_CLINT_TIMER is not set
# CONFIG_MSC313E_TIMER is not set
# CONFIG_INGENIC_TIMER is not set
# CONFIG_INGENIC_SYSOST is not set
# CONFIG_INGENIC_OST is not set
# CONFIG_MICROCHIP_PIT64B is not set
# end of Clock Source drivers

CONFIG_MAILBOX=y
# CONFIG_IMX_MBOX is not set
CONFIG_PLATFORM_MHU=y
# CONFIG_ARMADA_37XX_RWTM_MBOX is not set
# CONFIG_ROCKCHIP_MBOX is not set
# CONFIG_ALTERA_MBOX is not set
# CONFIG_HI3660_MBOX is not set
# CONFIG_HI6220_MBOX is not set
CONFIG_MAILBOX_TEST=m
# CONFIG_POLARFIRE_SOC_MAILBOX is not set
# CONFIG_QCOM_APCS_IPC is not set
# CONFIG_BCM_PDC_MBOX is not set
# CONFIG_STM32_IPCC is not set
# CONFIG_MTK_ADSP_MBOX is not set
# CONFIG_MTK_CMDQ_MBOX is not set
# CONFIG_SUN6I_MSGBOX is not set
# CONFIG_SPRD_MBOX is not set
# CONFIG_QCOM_IPCC is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
CONFIG_RPMSG=y
# CONFIG_RPMSG_CTRL is not set
CONFIG_RPMSG_NS=y
CONFIG_RPMSG_QCOM_GLINK=y
CONFIG_RPMSG_QCOM_GLINK_RPM=y
CONFIG_RPMSG_VIRTIO=y
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#
# CONFIG_OWL_PM_DOMAINS is not set

#
# Amlogic SoC drivers
#
# CONFIG_MESON_CANVAS is not set
# CONFIG_MESON_CLK_MEASURE is not set
# CONFIG_MESON_GX_SOCINFO is not set
# CONFIG_MESON_GX_PM_DOMAINS is not set
# CONFIG_MESON_EE_PM_DOMAINS is not set
# CONFIG_MESON_MX_SOCINFO is not set
# end of Amlogic SoC drivers

#
# Apple SoC drivers
#
# CONFIG_APPLE_PMGR_PWRSTATE is not set
# CONFIG_APPLE_RTKIT is not set
# CONFIG_APPLE_SART is not set
# end of Apple SoC drivers

#
# ASPEED SoC drivers
#
# CONFIG_ASPEED_LPC_CTRL is not set
# CONFIG_ASPEED_LPC_SNOOP is not set
# CONFIG_ASPEED_UART_ROUTING is not set
# CONFIG_ASPEED_P2A_CTRL is not set
# CONFIG_ASPEED_SOCINFO is not set
# end of ASPEED SoC drivers

# CONFIG_AT91_SOC_ID is not set
# CONFIG_AT91_SOC_SFR is not set

#
# Broadcom SoC drivers
#
# CONFIG_BCM2835_POWER is not set
# CONFIG_SOC_BCM63XX is not set
# CONFIG_SOC_BRCMSTB is not set
# CONFIG_BCM_PMB is not set
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# CONFIG_QUICC_ENGINE is not set
CONFIG_DPAA2_CONSOLE=y
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# CONFIG_IMX_GPCV2_PM_DOMAINS is not set
# CONFIG_SOC_IMX8M is not set
# CONFIG_SOC_IMX9 is not set
# end of i.MX SoC drivers

#
# IXP4xx SoC drivers
#
# CONFIG_IXP4XX_QMGR is not set
# CONFIG_IXP4XX_NPE is not set
# end of IXP4xx SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers

#
# MediaTek SoC drivers
#
# CONFIG_MTK_CMDQ is not set
# CONFIG_MTK_DEVAPC is not set
# CONFIG_MTK_INFRACFG is not set
# CONFIG_MTK_SCPSYS is not set
# CONFIG_MTK_SCPSYS_PM_DOMAINS is not set
# CONFIG_MTK_MMSYS is not set
# end of MediaTek SoC drivers

#
# Qualcomm SoC drivers
#
# CONFIG_QCOM_AOSS_QMP is not set
# CONFIG_QCOM_COMMAND_DB is not set
# CONFIG_QCOM_GENI_SE is not set
# CONFIG_QCOM_GSBI is not set
# CONFIG_QCOM_LLCC is not set
# CONFIG_QCOM_RPMH is not set
# CONFIG_QCOM_SMD_RPM is not set
# CONFIG_QCOM_SPM is not set
# CONFIG_QCOM_WCNSS_CTRL is not set
# CONFIG_QCOM_ICC_BWMON is not set
# end of Qualcomm SoC drivers

# CONFIG_SOC_RENESAS is not set
# CONFIG_ROCKCHIP_GRF is not set
# CONFIG_ROCKCHIP_IODOMAIN is not set
# CONFIG_ROCKCHIP_PM_DOMAINS is not set
# CONFIG_SOC_SAMSUNG is not set
# CONFIG_SOC_TEGRA20_VOLTAGE_COUPLER is not set
# CONFIG_SOC_TEGRA30_VOLTAGE_COUPLER is not set
# CONFIG_SOC_TI is not set
# CONFIG_UX500_SOC_ID is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=m
CONFIG_DEVFREQ_GOV_PERFORMANCE=m
CONFIG_DEVFREQ_GOV_POWERSAVE=m
CONFIG_DEVFREQ_GOV_USERSPACE=y
CONFIG_DEVFREQ_GOV_PASSIVE=y

#
# DEVFREQ Drivers
#
# CONFIG_ARM_EXYNOS_BUS_DEVFREQ is not set
# CONFIG_ARM_IMX_BUS_DEVFREQ is not set
# CONFIG_ARM_TEGRA_DEVFREQ is not set
# CONFIG_ARM_MEDIATEK_CCI_DEVFREQ is not set
# CONFIG_ARM_SUN8I_A33_MBUS_DEVFREQ is not set
CONFIG_PM_DEVFREQ_EVENT=y
# CONFIG_DEVFREQ_EVENT_EXYNOS_NOCP is not set
# CONFIG_DEVFREQ_EVENT_EXYNOS_PPMU is not set
# CONFIG_DEVFREQ_EVENT_ROCKCHIP_DFI is not set
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
CONFIG_EXTCON_ADC_JACK=m
CONFIG_EXTCON_GPIO=y
CONFIG_EXTCON_MAX14577=y
# CONFIG_EXTCON_MAX3355 is not set
# CONFIG_EXTCON_PTN5150 is not set
# CONFIG_EXTCON_QCOM_SPMI_MISC is not set
CONFIG_EXTCON_RT8973A=m
CONFIG_EXTCON_SM5502=y
CONFIG_EXTCON_USB_GPIO=m
# CONFIG_MEMORY is not set
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
# CONFIG_IIO_BUFFER_CB is not set
# CONFIG_IIO_BUFFER_DMA is not set
# CONFIG_IIO_BUFFER_DMAENGINE is not set
CONFIG_IIO_BUFFER_HW_CONSUMER=m
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=y
CONFIG_IIO_CONFIGFS=y
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
CONFIG_IIO_SW_DEVICE=y
CONFIG_IIO_SW_TRIGGER=m
CONFIG_IIO_TRIGGERED_EVENT=y

#
# Accelerometers
#
CONFIG_ADIS16201=m
CONFIG_ADIS16209=y
# CONFIG_ADXL313_I2C is not set
# CONFIG_ADXL313_SPI is not set
CONFIG_ADXL345=y
# CONFIG_ADXL345_I2C is not set
CONFIG_ADXL345_SPI=y
# CONFIG_ADXL355_I2C is not set
# CONFIG_ADXL355_SPI is not set
# CONFIG_ADXL367_SPI is not set
# CONFIG_ADXL367_I2C is not set
# CONFIG_ADXL372_SPI is not set
# CONFIG_ADXL372_I2C is not set
CONFIG_BMA180=y
# CONFIG_BMA220 is not set
# CONFIG_BMA400 is not set
# CONFIG_BMC150_ACCEL is not set
# CONFIG_BMI088_ACCEL is not set
CONFIG_DA280=y
# CONFIG_DA311 is not set
# CONFIG_DMARD06 is not set
# CONFIG_DMARD09 is not set
CONFIG_DMARD10=y
# CONFIG_FXLS8962AF_I2C is not set
# CONFIG_FXLS8962AF_SPI is not set
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
# CONFIG_KXSD9 is not set
CONFIG_KXCJK1013=y
CONFIG_MC3230=m
CONFIG_MMA7455=m
CONFIG_MMA7455_I2C=m
# CONFIG_MMA7455_SPI is not set
CONFIG_MMA7660=m
# CONFIG_MMA8452 is not set
CONFIG_MMA9551_CORE=m
CONFIG_MMA9551=m
# CONFIG_MMA9553 is not set
# CONFIG_MSA311 is not set
CONFIG_MXC4005=y
# CONFIG_MXC6255 is not set
CONFIG_SCA3000=y
# CONFIG_SCA3300 is not set
# CONFIG_STK8312 is not set
CONFIG_STK8BA50=m
# end of Accelerometers

#
# Analog to digital converters
#
CONFIG_AD_SIGMA_DELTA=y
# CONFIG_AD7091R5 is not set
# CONFIG_AD7124 is not set
CONFIG_AD7192=m
CONFIG_AD7266=m
# CONFIG_AD7280 is not set
CONFIG_AD7291=y
# CONFIG_AD7292 is not set
CONFIG_AD7298=y
CONFIG_AD7476=m
CONFIG_AD7606=m
CONFIG_AD7606_IFACE_PARALLEL=m
CONFIG_AD7606_IFACE_SPI=m
# CONFIG_AD7766 is not set
# CONFIG_AD7768_1 is not set
CONFIG_AD7780=m
CONFIG_AD7791=y
# CONFIG_AD7793 is not set
# CONFIG_AD7887 is not set
CONFIG_AD7923=m
# CONFIG_AD7949 is not set
# CONFIG_AD799X is not set
# CONFIG_ADI_AXI_ADC is not set
# CONFIG_ASPEED_ADC is not set
# CONFIG_AT91_SAMA5D2_ADC is not set
CONFIG_AXP20X_ADC=m
CONFIG_AXP288_ADC=m
# CONFIG_BCM_IPROC_ADC is not set
# CONFIG_BERLIN2_ADC is not set
CONFIG_CC10001_ADC=m
# CONFIG_ENVELOPE_DETECTOR is not set
# CONFIG_EXYNOS_ADC is not set
CONFIG_HI8435=y
CONFIG_HX711=y
CONFIG_INA2XX_ADC=y
# CONFIG_INGENIC_ADC is not set
# CONFIG_IMX7D_ADC is not set
# CONFIG_IMX8QXP_ADC is not set
# CONFIG_LPC18XX_ADC is not set
# CONFIG_LPC32XX_ADC is not set
# CONFIG_LTC2471 is not set
CONFIG_LTC2485=m
# CONFIG_LTC2496 is not set
CONFIG_LTC2497=m
# CONFIG_MAX1027 is not set
# CONFIG_MAX11100 is not set
CONFIG_MAX1118=m
# CONFIG_MAX11205 is not set
# CONFIG_MAX1241 is not set
CONFIG_MAX1363=m
CONFIG_MAX9611=m
# CONFIG_MCP320X is not set
CONFIG_MCP3422=y
# CONFIG_MCP3911 is not set
# CONFIG_MEDIATEK_MT6577_AUXADC is not set
CONFIG_MEN_Z188_ADC=m
# CONFIG_MESON_SARADC is not set
CONFIG_NAU7802=y
# CONFIG_NPCM_ADC is not set
CONFIG_QCOM_VADC_COMMON=y
CONFIG_QCOM_SPMI_IADC=m
CONFIG_QCOM_SPMI_VADC=y
# CONFIG_QCOM_SPMI_ADC5 is not set
# CONFIG_RCAR_GYRO_ADC is not set
# CONFIG_RICHTEK_RTQ6056 is not set
# CONFIG_RZG2L_ADC is not set
# CONFIG_SC27XX_ADC is not set
# CONFIG_SPEAR_ADC is not set
# CONFIG_SD_ADC_MODULATOR is not set
# CONFIG_STM32_ADC_CORE is not set
# CONFIG_STM32_DFSDM_CORE is not set
# CONFIG_STM32_DFSDM_ADC is not set
# CONFIG_TI_ADC081C is not set
# CONFIG_TI_ADC0832 is not set
CONFIG_TI_ADC084S021=m
# CONFIG_TI_ADC12138 is not set
# CONFIG_TI_ADC108S102 is not set
CONFIG_TI_ADC128S052=y
# CONFIG_TI_ADC161S626 is not set
# CONFIG_TI_ADS1015 is not set
CONFIG_TI_ADS7950=y
# CONFIG_TI_ADS8344 is not set
# CONFIG_TI_ADS8688 is not set
# CONFIG_TI_ADS124S08 is not set
# CONFIG_TI_ADS131E08 is not set
CONFIG_TI_AM335X_ADC=m
CONFIG_TI_TLC4541=m
# CONFIG_TI_TSC2046 is not set
CONFIG_TWL4030_MADC=m
CONFIG_TWL6030_GPADC=y
# CONFIG_VF610_ADC is not set
# CONFIG_XILINX_XADC is not set
# CONFIG_XILINX_AMS is not set
# end of Analog to digital converters

#
# Analog to digital and digital to analog converters
#
# CONFIG_AD74413R is not set
# end of Analog to digital and digital to analog converters

#
# Analog Front Ends
#
CONFIG_IIO_RESCALE=y
# end of Analog Front Ends

#
# Amplifiers
#
CONFIG_AD8366=y
# CONFIG_ADA4250 is not set
# CONFIG_HMC425 is not set
# end of Amplifiers

#
# Capacitance to digital converters
#
CONFIG_AD7150=y
# CONFIG_AD7746 is not set
# end of Capacitance to digital converters

#
# Chemical Sensors
#
CONFIG_ATLAS_PH_SENSOR=y
# CONFIG_ATLAS_EZO_SENSOR is not set
CONFIG_BME680=y
CONFIG_BME680_I2C=y
CONFIG_BME680_SPI=y
CONFIG_CCS811=y
# CONFIG_IAQCORE is not set
# CONFIG_PMS7003 is not set
# CONFIG_SCD30_CORE is not set
# CONFIG_SCD4X is not set
# CONFIG_SENSIRION_SGP30 is not set
# CONFIG_SENSIRION_SGP40 is not set
# CONFIG_SPS30_I2C is not set
# CONFIG_SPS30_SERIAL is not set
# CONFIG_SENSEAIR_SUNRISE_CO2 is not set
CONFIG_VZ89X=y
# end of Chemical Sensors

#
# Hid Sensor IIO Common
#
# end of Hid Sensor IIO Common

CONFIG_IIO_MS_SENSORS_I2C=y

#
# IIO SCMI Sensors
#
# end of IIO SCMI Sensors

#
# SSP Sensor Common
#
# CONFIG_IIO_SSP_SENSORS_COMMONS is not set
CONFIG_IIO_SSP_SENSORHUB=m
# end of SSP Sensor Common

CONFIG_IIO_ST_SENSORS_I2C=y
CONFIG_IIO_ST_SENSORS_SPI=y
CONFIG_IIO_ST_SENSORS_CORE=y

#
# Digital to analog converters
#
# CONFIG_AD3552R is not set
CONFIG_AD5064=y
CONFIG_AD5360=y
CONFIG_AD5380=m
# CONFIG_AD5421 is not set
CONFIG_AD5446=m
# CONFIG_AD5449 is not set
CONFIG_AD5592R_BASE=y
CONFIG_AD5592R=y
# CONFIG_AD5593R is not set
CONFIG_AD5504=y
# CONFIG_AD5624R_SPI is not set
# CONFIG_LTC2688 is not set
CONFIG_AD5686=y
CONFIG_AD5686_SPI=y
CONFIG_AD5696_I2C=y
CONFIG_AD5755=m
CONFIG_AD5758=y
CONFIG_AD5761=m
# CONFIG_AD5764 is not set
# CONFIG_AD5766 is not set
# CONFIG_AD5770R is not set
CONFIG_AD5791=m
# CONFIG_AD7293 is not set
# CONFIG_AD7303 is not set
CONFIG_AD8801=m
CONFIG_DPOT_DAC=m
CONFIG_DS4424=y
# CONFIG_LPC18XX_DAC is not set
# CONFIG_LTC1660 is not set
# CONFIG_LTC2632 is not set
CONFIG_M62332=m
CONFIG_MAX517=y
CONFIG_MAX5821=y
CONFIG_MCP4725=y
# CONFIG_MCP4922 is not set
# CONFIG_STM32_DAC is not set
CONFIG_TI_DAC082S085=y
# CONFIG_TI_DAC5571 is not set
# CONFIG_TI_DAC7311 is not set
# CONFIG_TI_DAC7612 is not set
# CONFIG_VF610_DAC is not set
# end of Digital to analog converters

#
# IIO dummy driver
#
CONFIG_IIO_DUMMY_EVGEN=y
CONFIG_IIO_SIMPLE_DUMMY=y
CONFIG_IIO_SIMPLE_DUMMY_EVENTS=y
# CONFIG_IIO_SIMPLE_DUMMY_BUFFER is not set
# end of IIO dummy driver

#
# Filters
#
# CONFIG_ADMV8818 is not set
# end of Filters

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#
# CONFIG_AD9523 is not set
# end of Clock Generator/Distribution

#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# CONFIG_ADF4350 is not set
# CONFIG_ADF4371 is not set
# CONFIG_ADMV1013 is not set
# CONFIG_ADMV1014 is not set
# CONFIG_ADMV4420 is not set
# CONFIG_ADRF6780 is not set
# end of Phase-Locked Loop (PLL) frequency synthesizers
# end of Frequency Synthesizers DDS/PLL

#
# Digital gyroscope sensors
#
CONFIG_ADIS16080=y
CONFIG_ADIS16130=m
CONFIG_ADIS16136=y
CONFIG_ADIS16260=m
# CONFIG_ADXRS290 is not set
CONFIG_ADXRS450=y
# CONFIG_BMG160 is not set
# CONFIG_FXAS21002C is not set
CONFIG_MPU3050=y
CONFIG_MPU3050_I2C=y
CONFIG_IIO_ST_GYRO_3AXIS=m
CONFIG_IIO_ST_GYRO_I2C_3AXIS=m
CONFIG_IIO_ST_GYRO_SPI_3AXIS=m
CONFIG_ITG3200=y
# end of Digital gyroscope sensors

#
# Health Sensors
#

#
# Heart Rate Monitors
#
CONFIG_AFE4403=m
# CONFIG_AFE4404 is not set
CONFIG_MAX30100=y
CONFIG_MAX30102=m
# end of Heart Rate Monitors
# end of Health Sensors

#
# Humidity sensors
#
# CONFIG_AM2315 is not set
# CONFIG_DHT11 is not set
CONFIG_HDC100X=y
# CONFIG_HDC2010 is not set
# CONFIG_HTS221 is not set
CONFIG_HTU21=y
# CONFIG_SI7005 is not set
CONFIG_SI7020=m
# end of Humidity sensors

#
# Inertial measurement units
#
# CONFIG_ADIS16400 is not set
# CONFIG_ADIS16460 is not set
# CONFIG_ADIS16475 is not set
CONFIG_ADIS16480=y
CONFIG_BMI160=m
CONFIG_BMI160_I2C=m
CONFIG_BMI160_SPI=m
# CONFIG_BOSCH_BNO055_SERIAL is not set
# CONFIG_BOSCH_BNO055_I2C is not set
# CONFIG_FXOS8700_I2C is not set
# CONFIG_FXOS8700_SPI is not set
# CONFIG_KMX61 is not set
# CONFIG_INV_ICM42600_I2C is not set
# CONFIG_INV_ICM42600_SPI is not set
CONFIG_INV_MPU6050_IIO=m
CONFIG_INV_MPU6050_I2C=m
# CONFIG_INV_MPU6050_SPI is not set
CONFIG_IIO_ST_LSM6DSX=y
CONFIG_IIO_ST_LSM6DSX_I2C=y
CONFIG_IIO_ST_LSM6DSX_SPI=y
# CONFIG_IIO_ST_LSM9DS0 is not set
# end of Inertial measurement units

CONFIG_IIO_ADIS_LIB=y
CONFIG_IIO_ADIS_LIB_BUFFER=y

#
# Light sensors
#
CONFIG_ADJD_S311=m
# CONFIG_ADUX1020 is not set
# CONFIG_AL3010 is not set
CONFIG_AL3320A=y
CONFIG_APDS9300=y
CONFIG_APDS9960=y
# CONFIG_AS73211 is not set
# CONFIG_BH1750 is not set
CONFIG_BH1780=m
# CONFIG_CM32181 is not set
# CONFIG_CM3232 is not set
CONFIG_CM3323=y
CONFIG_CM3605=m
CONFIG_CM36651=m
# CONFIG_GP2AP002 is not set
CONFIG_GP2AP020A00F=m
# CONFIG_IQS621_ALS is not set
CONFIG_SENSORS_ISL29018=y
CONFIG_SENSORS_ISL29028=m
CONFIG_ISL29125=y
CONFIG_JSA1212=y
CONFIG_RPR0521=y
# CONFIG_SENSORS_LM3533 is not set
# CONFIG_LTR501 is not set
# CONFIG_LTRF216A is not set
CONFIG_LV0104CS=y
CONFIG_MAX44000=m
# CONFIG_MAX44009 is not set
# CONFIG_NOA1305 is not set
# CONFIG_OPT3001 is not set
CONFIG_PA12203001=y
CONFIG_SI1133=y
CONFIG_SI1145=m
CONFIG_STK3310=y
CONFIG_ST_UVIS25=m
CONFIG_ST_UVIS25_I2C=m
CONFIG_ST_UVIS25_SPI=m
# CONFIG_TCS3414 is not set
CONFIG_TCS3472=y
# CONFIG_SENSORS_TSL2563 is not set
# CONFIG_TSL2583 is not set
# CONFIG_TSL2591 is not set
CONFIG_TSL2772=m
CONFIG_TSL4531=m
# CONFIG_US5182D is not set
CONFIG_VCNL4000=y
# CONFIG_VCNL4035 is not set
# CONFIG_VEML6030 is not set
# CONFIG_VEML6070 is not set
CONFIG_VL6180=y
CONFIG_ZOPT2201=m
# end of Light sensors

#
# Magnetometer sensors
#
CONFIG_AK8974=m
CONFIG_AK8975=y
CONFIG_AK09911=y
CONFIG_BMC150_MAGN=y
# CONFIG_BMC150_MAGN_I2C is not set
CONFIG_BMC150_MAGN_SPI=y
CONFIG_MAG3110=y
# CONFIG_MMC35240 is not set
CONFIG_IIO_ST_MAGN_3AXIS=y
CONFIG_IIO_ST_MAGN_I2C_3AXIS=y
CONFIG_IIO_ST_MAGN_SPI_3AXIS=y
CONFIG_SENSORS_HMC5843=y
CONFIG_SENSORS_HMC5843_I2C=m
CONFIG_SENSORS_HMC5843_SPI=y
# CONFIG_SENSORS_RM3100_I2C is not set
# CONFIG_SENSORS_RM3100_SPI is not set
# CONFIG_YAMAHA_YAS530 is not set
# end of Magnetometer sensors

#
# Multiplexers
#
CONFIG_IIO_MUX=y
# end of Multiplexers

#
# Inclinometer sensors
#
# end of Inclinometer sensors

#
# Triggers - standalone
#
CONFIG_IIO_HRTIMER_TRIGGER=m
CONFIG_IIO_INTERRUPT_TRIGGER=m
# CONFIG_IIO_STM32_LPTIMER_TRIGGER is not set
# CONFIG_IIO_STM32_TIMER_TRIGGER is not set
CONFIG_IIO_TIGHTLOOP_TRIGGER=m
CONFIG_IIO_SYSFS_TRIGGER=m
# end of Triggers - standalone

#
# Linear and angular position sensors
#
# CONFIG_IQS624_POS is not set
# end of Linear and angular position sensors

#
# Digital potentiometers
#
# CONFIG_AD5110 is not set
CONFIG_AD5272=m
# CONFIG_DS1803 is not set
# CONFIG_MAX5432 is not set
CONFIG_MAX5481=y
CONFIG_MAX5487=y
CONFIG_MCP4018=m
# CONFIG_MCP4131 is not set
CONFIG_MCP4531=m
# CONFIG_MCP41010 is not set
CONFIG_TPL0102=m
# end of Digital potentiometers

#
# Digital potentiostats
#
# CONFIG_LMP91000 is not set
# end of Digital potentiostats

#
# Pressure sensors
#
CONFIG_ABP060MG=m
CONFIG_BMP280=m
CONFIG_BMP280_I2C=m
CONFIG_BMP280_SPI=m
# CONFIG_DLHL60D is not set
# CONFIG_DPS310 is not set
CONFIG_HP03=y
# CONFIG_ICP10100 is not set
# CONFIG_MPL115_I2C is not set
# CONFIG_MPL115_SPI is not set
CONFIG_MPL3115=m
# CONFIG_MS5611 is not set
CONFIG_MS5637=m
CONFIG_IIO_ST_PRESS=y
CONFIG_IIO_ST_PRESS_I2C=y
CONFIG_IIO_ST_PRESS_SPI=y
CONFIG_T5403=y
# CONFIG_HP206C is not set
CONFIG_ZPA2326=m
CONFIG_ZPA2326_I2C=m
CONFIG_ZPA2326_SPI=m
# end of Pressure sensors

#
# Lightning sensors
#
CONFIG_AS3935=y
# end of Lightning sensors

#
# Proximity and distance sensors
#
CONFIG_ISL29501=y
CONFIG_LIDAR_LITE_V2=y
# CONFIG_MB1232 is not set
# CONFIG_PING is not set
CONFIG_RFD77402=y
# CONFIG_SRF04 is not set
# CONFIG_SX9310 is not set
# CONFIG_SX9324 is not set
# CONFIG_SX9360 is not set
# CONFIG_SX9500 is not set
CONFIG_SRF08=y
# CONFIG_VCNL3020 is not set
# CONFIG_VL53L0X_I2C is not set
# end of Proximity and distance sensors

#
# Resolver to digital converters
#
CONFIG_AD2S90=y
# CONFIG_AD2S1200 is not set
# end of Resolver to digital converters

#
# Temperature sensors
#
# CONFIG_IQS620AT_TEMP is not set
# CONFIG_LTC2983 is not set
CONFIG_MAXIM_THERMOCOUPLE=y
# CONFIG_MLX90614 is not set
CONFIG_MLX90632=y
CONFIG_TMP006=y
CONFIG_TMP007=y
# CONFIG_TMP117 is not set
# CONFIG_TSYS01 is not set
CONFIG_TSYS02D=y
# CONFIG_MAX31856 is not set
# CONFIG_MAX31865 is not set
# end of Temperature sensors

CONFIG_NTB=y
# CONFIG_NTB_MSI is not set
CONFIG_NTB_IDT=m
# CONFIG_NTB_EPF is not set
CONFIG_NTB_SWITCHTEC=y
CONFIG_NTB_PINGPONG=y
CONFIG_NTB_TOOL=m
# CONFIG_NTB_PERF is not set
# CONFIG_NTB_TRANSPORT is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
# CONFIG_PWM_ATMEL is not set
# CONFIG_PWM_ATMEL_HLCDC_PWM is not set
# CONFIG_PWM_ATMEL_TCB is not set
# CONFIG_PWM_BCM_IPROC is not set
# CONFIG_PWM_BCM_KONA is not set
# CONFIG_PWM_BCM2835 is not set
# CONFIG_PWM_BERLIN is not set
# CONFIG_PWM_BRCMSTB is not set
# CONFIG_PWM_CLK is not set
# CONFIG_PWM_CLPS711X is not set
# CONFIG_PWM_DWC is not set
# CONFIG_PWM_EP93XX is not set
CONFIG_PWM_FSL_FTM=y
# CONFIG_PWM_HIBVT is not set
# CONFIG_PWM_IMG is not set
# CONFIG_PWM_IMX1 is not set
# CONFIG_PWM_IMX27 is not set
# CONFIG_PWM_IMX_TPM is not set
# CONFIG_PWM_INTEL_LGM is not set
# CONFIG_PWM_IQS620A is not set
# CONFIG_PWM_JZ4740 is not set
# CONFIG_PWM_KEEMBAY is not set
CONFIG_PWM_LP3943=m
# CONFIG_PWM_LPC18XX_SCT is not set
# CONFIG_PWM_LPC32XX is not set
# CONFIG_PWM_LPSS_PCI is not set
# CONFIG_PWM_LPSS_PLATFORM is not set
# CONFIG_PWM_MESON is not set
# CONFIG_PWM_MTK_DISP is not set
# CONFIG_PWM_MEDIATEK is not set
# CONFIG_PWM_MXS is not set
# CONFIG_PWM_OMAP_DMTIMER is not set
CONFIG_PWM_PCA9685=y
# CONFIG_PWM_PXA is not set
# CONFIG_PWM_RASPBERRYPI_POE is not set
# CONFIG_PWM_RCAR is not set
# CONFIG_PWM_RENESAS_TPU is not set
# CONFIG_PWM_ROCKCHIP is not set
# CONFIG_PWM_SAMSUNG is not set
# CONFIG_PWM_SIFIVE is not set
# CONFIG_PWM_SL28CPLD is not set
# CONFIG_PWM_SPEAR is not set
# CONFIG_PWM_SPRD is not set
# CONFIG_PWM_STI is not set
# CONFIG_PWM_STM32 is not set
# CONFIG_PWM_STM32_LP is not set
# CONFIG_PWM_SUN4I is not set
# CONFIG_PWM_SUNPLUS is not set
# CONFIG_PWM_TEGRA is not set
# CONFIG_PWM_TIECAP is not set
# CONFIG_PWM_TIEHRPWM is not set
# CONFIG_PWM_TWL is not set
CONFIG_PWM_TWL_LED=m
# CONFIG_PWM_VISCONTI is not set
# CONFIG_PWM_VT8500 is not set
# CONFIG_PWM_XILINX is not set

#
# IRQ chip support
#
CONFIG_IRQCHIP=y
# CONFIG_AL_FIC is not set
CONFIG_MADERA_IRQ=m
# CONFIG_JCORE_AIC is not set
# CONFIG_RENESAS_INTC_IRQPIN is not set
# CONFIG_RENESAS_IRQC is not set
# CONFIG_RENESAS_RZA1_IRQC is not set
# CONFIG_RENESAS_RZG2L_IRQC is not set
# CONFIG_SL28CPLD_INTC is not set
# CONFIG_TS4800_IRQ is not set
# CONFIG_XILINX_INTC is not set
# CONFIG_INGENIC_TCU_IRQ is not set
# CONFIG_IRQ_UNIPHIER_AIDET is not set
# CONFIG_MESON_IRQ_GPIO is not set
# CONFIG_IMX_IRQSTEER is not set
# CONFIG_IMX_INTMUX is not set
# CONFIG_IMX_MU_MSI is not set
CONFIG_RISCV_INTC=y
CONFIG_SIFIVE_PLIC=y
# CONFIG_EXYNOS_IRQ_COMBINER is not set
# CONFIG_MST_IRQ is not set
# CONFIG_MCHP_EIC is not set
# CONFIG_SUNPLUS_SP7021_INTC is not set
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_LPC18XX_USB_OTG is not set
# CONFIG_PHY_PISTACHIO_USB is not set
# CONFIG_PHY_XGENE is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
# CONFIG_PHY_MESON8_HDMI_TX is not set
# CONFIG_PHY_MESON_G12A_MIPI_DPHY_ANALOG is not set
# CONFIG_PHY_MESON_G12A_USB2 is not set
# CONFIG_PHY_MESON_G12A_USB3_PCIE is not set
# CONFIG_PHY_MESON_AXG_PCIE is not set
# CONFIG_PHY_MESON_AXG_MIPI_PCIE_ANALOG is not set
# CONFIG_PHY_MESON_AXG_MIPI_DPHY is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_PHY_BCM63XX_USBH is not set
# CONFIG_PHY_CYGNUS_PCIE is not set
# CONFIG_PHY_BCM_SR_USB is not set
CONFIG_BCM_KONA_USB2_PHY=y
# CONFIG_PHY_BCM_NS_USB2 is not set
# CONFIG_PHY_NS2_USB_DRD is not set
# CONFIG_PHY_BRCM_SATA is not set
# CONFIG_PHY_BRCM_USB is not set
# CONFIG_PHY_BCM_SR_PCIE is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_CADENCE_TORRENT is not set
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_DPHY_RX is not set
# CONFIG_PHY_CADENCE_SALVO is not set
# CONFIG_PHY_FSL_IMX8MQ_USB is not set
# CONFIG_PHY_MIXEL_LVDS_PHY is not set
# CONFIG_PHY_MIXEL_MIPI_DPHY is not set
# CONFIG_PHY_FSL_IMX8M_PCIE is not set
# CONFIG_PHY_FSL_LYNX_28G is not set
# CONFIG_PHY_HI6220_USB is not set
# CONFIG_PHY_HI3660_USB is not set
# CONFIG_PHY_HI3670_USB is not set
# CONFIG_PHY_HI3670_PCIE is not set
# CONFIG_PHY_HISTB_COMBPHY is not set
# CONFIG_PHY_HISI_INNO_USB2 is not set
# CONFIG_PHY_LANTIQ_VRX200_PCIE is not set
# CONFIG_PHY_LANTIQ_RCU_USB2 is not set
# CONFIG_ARMADA375_USBCLUSTER_PHY is not set
# CONFIG_PHY_BERLIN_SATA is not set
CONFIG_PHY_MVEBU_A3700_UTMI=y
# CONFIG_PHY_MVEBU_A38X_COMPHY is not set
CONFIG_PHY_PXA_28NM_HSIC=y
CONFIG_PHY_PXA_28NM_USB2=m
# CONFIG_PHY_PXA_USB is not set
# CONFIG_PHY_MMP3_USB is not set
# CONFIG_PHY_MMP3_HSIC is not set
# CONFIG_PHY_MTK_PCIE is not set
# CONFIG_PHY_MTK_TPHY is not set
# CONFIG_PHY_MTK_UFS is not set
# CONFIG_PHY_MTK_XSPHY is not set
# CONFIG_PHY_MTK_HDMI is not set
# CONFIG_PHY_MTK_MIPI_DSI is not set
# CONFIG_PHY_MTK_DP is not set
# CONFIG_PHY_SPARX5_SERDES is not set
# CONFIG_PHY_LAN966X_SERDES is not set
# CONFIG_PHY_OCELOT_SERDES is not set
# CONFIG_PHY_ATH79_USB is not set
# CONFIG_PHY_QCOM_EDP is not set
# CONFIG_PHY_QCOM_IPQ4019_USB is not set
# CONFIG_PHY_QCOM_PCIE2 is not set
# CONFIG_PHY_QCOM_QMP is not set
# CONFIG_PHY_QCOM_QUSB2 is not set
# CONFIG_PHY_QCOM_USB_SNPS_FEMTO_V2 is not set
# CONFIG_PHY_QCOM_USB_HS_28NM is not set
# CONFIG_PHY_QCOM_USB_SS is not set
# CONFIG_PHY_QCOM_IPQ806X_USB is not set
# CONFIG_PHY_MT7621_PCI is not set
# CONFIG_PHY_RALINK_USB is not set
# CONFIG_PHY_RCAR_GEN3_USB3 is not set
# CONFIG_PHY_ROCKCHIP_DPHY_RX0 is not set
# CONFIG_PHY_ROCKCHIP_INNO_HDMI is not set
# CONFIG_PHY_ROCKCHIP_INNO_CSIDPHY is not set
# CONFIG_PHY_ROCKCHIP_INNO_DSIDPHY is not set
# CONFIG_PHY_ROCKCHIP_PCIE is not set
# CONFIG_PHY_ROCKCHIP_SNPS_PCIE3 is not set
# CONFIG_PHY_ROCKCHIP_TYPEC is not set
# CONFIG_PHY_EXYNOS_DP_VIDEO is not set
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
# CONFIG_PHY_EXYNOS_PCIE is not set
# CONFIG_PHY_SAMSUNG_UFS is not set
# CONFIG_PHY_SAMSUNG_USB2 is not set
# CONFIG_PHY_UNIPHIER_USB2 is not set
# CONFIG_PHY_UNIPHIER_USB3 is not set
# CONFIG_PHY_UNIPHIER_PCIE is not set
# CONFIG_PHY_UNIPHIER_AHCI is not set
# CONFIG_PHY_ST_SPEAR1310_MIPHY is not set
# CONFIG_PHY_ST_SPEAR1340_MIPHY is not set
# CONFIG_PHY_STM32_USBPHYC is not set
# CONFIG_PHY_SUNPLUS_USB is not set
# CONFIG_PHY_TEGRA194_P2U is not set
# CONFIG_PHY_DA8XX_USB is not set
# CONFIG_PHY_AM654_SERDES is not set
# CONFIG_PHY_J721E_WIZ is not set
# CONFIG_OMAP_CONTROL_PHY is not set
# CONFIG_TI_PIPE3 is not set
# CONFIG_PHY_INTEL_KEEMBAY_EMMC is not set
# CONFIG_PHY_INTEL_KEEMBAY_USB is not set
# CONFIG_PHY_INTEL_LGM_COMBO is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# CONFIG_PHY_INTEL_THUNDERBAY_EMMC is not set
# CONFIG_PHY_XILINX_ZYNQMP is not set
# end of PHY Subsystem

CONFIG_POWERCAP=y
# CONFIG_DTPM is not set
CONFIG_MCB=y
CONFIG_MCB_PCI=y
CONFIG_MCB_LPC=m
CONFIG_RAS=y
# CONFIG_USB4 is not set

#
# Android
#
CONFIG_ANDROID_BINDER_IPC=y
# CONFIG_ANDROID_BINDERFS is not set
CONFIG_ANDROID_BINDER_DEVICES="binder,hwbinder,vndbinder"
# CONFIG_ANDROID_BINDER_IPC_SELFTEST is not set
# end of Android

# CONFIG_DAX is not set
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_APPLE_EFUSES is not set
# CONFIG_NVMEM_BCM_OCOTP is not set
# CONFIG_NVMEM_BRCM_NVRAM is not set
# CONFIG_NVMEM_IMX_IIM is not set
# CONFIG_NVMEM_IMX_OCOTP is not set
# CONFIG_NVMEM_JZ4780_EFUSE is not set
# CONFIG_NVMEM_LAN9662_OTPC is not set
# CONFIG_NVMEM_LAYERSCAPE_SFP is not set
# CONFIG_NVMEM_LPC18XX_EEPROM is not set
# CONFIG_NVMEM_LPC18XX_OTP is not set
# CONFIG_NVMEM_MESON_MX_EFUSE is not set
# CONFIG_NVMEM_MICROCHIP_OTPC is not set
# CONFIG_NVMEM_MTK_EFUSE is not set
# CONFIG_NVMEM_MXS_OCOTP is not set
# CONFIG_NVMEM_NINTENDO_OTP is not set
# CONFIG_NVMEM_QCOM_QFPROM is not set
# CONFIG_NVMEM_RMEM is not set
# CONFIG_NVMEM_ROCKCHIP_EFUSE is not set
# CONFIG_NVMEM_ROCKCHIP_OTP is not set
# CONFIG_NVMEM_SC27XX_EFUSE is not set
# CONFIG_NVMEM_SNVS_LPGPR is not set
# CONFIG_NVMEM_SPMI_SDAM is not set
# CONFIG_NVMEM_SPRD_EFUSE is not set
# CONFIG_NVMEM_STM32_ROMEM is not set
# CONFIG_NVMEM_SUNPLUS_OCOTP is not set
# CONFIG_NVMEM_UNIPHIER_EFUSE is not set
# CONFIG_NVMEM_VF610_OCOTP is not set

#
# HW tracing support
#
CONFIG_STM=y
# CONFIG_STM_PROTO_BASIC is not set
# CONFIG_STM_PROTO_SYS_T is not set
CONFIG_STM_DUMMY=m
CONFIG_STM_SOURCE_CONSOLE=m
# CONFIG_STM_SOURCE_HEARTBEAT is not set
CONFIG_INTEL_TH=y
CONFIG_INTEL_TH_PCI=m
# CONFIG_INTEL_TH_GTH is not set
CONFIG_INTEL_TH_STH=m
CONFIG_INTEL_TH_MSU=y
CONFIG_INTEL_TH_PTI=y
CONFIG_INTEL_TH_DEBUG=y
# end of HW tracing support

CONFIG_FPGA=m
# CONFIG_FPGA_MGR_SOCFPGA is not set
# CONFIG_FPGA_MGR_SOCFPGA_A10 is not set
# CONFIG_ALTERA_PR_IP_CORE is not set
# CONFIG_FPGA_MGR_ALTERA_PS_SPI is not set
CONFIG_FPGA_MGR_ALTERA_CVP=m
# CONFIG_FPGA_MGR_ZYNQ_FPGA is not set
# CONFIG_FPGA_MGR_XILINX_SPI is not set
# CONFIG_FPGA_MGR_ICE40_SPI is not set
CONFIG_FPGA_MGR_MACHXO2_SPI=m
CONFIG_FPGA_BRIDGE=m
# CONFIG_ALTERA_FREEZE_BRIDGE is not set
CONFIG_XILINX_PR_DECOUPLER=m
CONFIG_FPGA_REGION=m
CONFIG_OF_FPGA_REGION=m
CONFIG_FPGA_DFL=m
CONFIG_FPGA_DFL_AFU=m
# CONFIG_FPGA_DFL_NIOS_INTEL_PAC_N3000 is not set
# CONFIG_FPGA_DFL_PCI is not set
# CONFIG_FPGA_MGR_ZYNQMP_FPGA is not set
# CONFIG_FPGA_MGR_VERSAL_FPGA is not set
# CONFIG_FPGA_MGR_MICROCHIP_SPI is not set
CONFIG_FSI=m
# CONFIG_FSI_NEW_DEV_NODE is not set
CONFIG_FSI_MASTER_GPIO=m
# CONFIG_FSI_MASTER_HUB is not set
# CONFIG_FSI_MASTER_ASPEED is not set
# CONFIG_FSI_SCOM is not set
CONFIG_FSI_SBEFIFO=m
# CONFIG_FSI_OCC is not set
# CONFIG_TEE is not set
CONFIG_MULTIPLEXER=y

#
# Multiplexer drivers
#
# CONFIG_MUX_ADG792A is not set
# CONFIG_MUX_ADGS1408 is not set
CONFIG_MUX_GPIO=y
CONFIG_MUX_MMIO=m
# end of Multiplexer drivers

CONFIG_PM_OPP=y
CONFIG_SIOX=m
# CONFIG_SIOX_BUS_GPIO is not set
CONFIG_SLIMBUS=y
CONFIG_SLIM_QCOM_CTRL=m
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
CONFIG_MOST=y
# CONFIG_MOST_CDEV is not set
# CONFIG_MOST_SND is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
CONFIG_FANOTIFY=y
# CONFIG_QUOTA is not set
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set
# end of Caches

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_TMPFS_INODE64 is not set
CONFIG_ARCH_SUPPORTS_HUGETLBFS=y
# CONFIG_HUGETLBFS is not set
CONFIG_MEMFD_CREATE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=m
# end of Pseudo filesystems

# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NLS=m
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
# CONFIG_NLS_CODEPAGE_866 is not set
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_CODEPAGE_932=m
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
# CONFIG_NLS_KOI8_R is not set
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
CONFIG_NLS_MAC_CELTIC=m
CONFIG_NLS_MAC_CENTEURO=m
# CONFIG_NLS_MAC_CROATIAN is not set
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITYFS=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
CONFIG_INIT_STACK_ALL_PATTERN=y
# CONFIG_INIT_STACK_ALL_ZERO is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
# end of Memory initialization

CONFIG_CC_HAS_RANDSTRUCT=y
# CONFIG_RANDSTRUCT_NONE is not set
CONFIG_RANDSTRUCT_FULL=y
CONFIG_RANDSTRUCT=y
# end of Kernel hardening options
# end of Security options

CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
# CONFIG_CRYPTO_MANAGER_EXTRA_TESTS is not set
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=y
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ENGINE=y
# end of Crypto core or helper

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
# CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set
CONFIG_CRYPTO_ECC=y
CONFIG_CRYPTO_ECDH=y
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# end of Public-key cryptography

#
# Block ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=y
# CONFIG_CRYPTO_ARIA is not set
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_CAMELLIA=y
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SM4=m
# CONFIG_CRYPTO_SM4_GENERIC is not set
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_CHACHA20=y
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_HCTR2 is not set
CONFIG_CRYPTO_KEYWRAP=y
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
CONFIG_CRYPTO_AEGIS128=m
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_SEQIV=m
CONFIG_CRYPTO_ECHAINIV=y
# CONFIG_CRYPTO_ESSIV is not set
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
# CONFIG_CRYPTO_BLAKE2B is not set
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRYPTO_POLY1305=y
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
# CONFIG_CRYPTO_SHA3 is not set
CONFIG_CRYPTO_SM3=m
# CONFIG_CRYPTO_SM3_GENERIC is not set
# CONFIG_CRYPTO_STREEBOG is not set
CONFIG_CRYPTO_VMAC=y
CONFIG_CRYPTO_WP512=y
CONFIG_CRYPTO_XCBC=y
# CONFIG_CRYPTO_XXHASH is not set
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
CONFIG_CRYPTO_CRC32C=m
# CONFIG_CRYPTO_CRC32 is not set
CONFIG_CRYPTO_CRCT10DIF=y
# CONFIG_CRYPTO_CRC64_ROCKSOFT is not set
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRYPTO_842=y
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
CONFIG_CRYPTO_ZSTD=m
# end of Compression

#
# Random number generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# end of Random number generation

#
# Userspace interface
#
# end of Userspace interface

CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_ALLWINNER is not set
# CONFIG_CRYPTO_DEV_SL3516 is not set
# CONFIG_CRYPTO_DEV_EXYNOS_RNG is not set
# CONFIG_CRYPTO_DEV_S5P is not set
# CONFIG_CRYPTO_DEV_ATMEL_AES is not set
# CONFIG_CRYPTO_DEV_ATMEL_TDES is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA is not set
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCC is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXX is not set
# CONFIG_CRYPTO_DEV_QAT_C62X is not set
# CONFIG_CRYPTO_DEV_QAT_4XXX is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCCVF is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXXVF is not set
# CONFIG_CRYPTO_DEV_QAT_C62XVF is not set
# CONFIG_CAVIUM_CPT is not set
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
# CONFIG_CRYPTO_DEV_OCTEONTX_CPT is not set
# CONFIG_CRYPTO_DEV_CAVIUM_ZIP is not set
# CONFIG_CRYPTO_DEV_QCE is not set
# CONFIG_CRYPTO_DEV_QCOM_RNG is not set
# CONFIG_CRYPTO_DEV_IMGTEC_HASH is not set
# CONFIG_CRYPTO_DEV_ZYNQMP_AES is not set
# CONFIG_CRYPTO_DEV_ZYNQMP_SHA3 is not set
CONFIG_CRYPTO_DEV_VIRTIO=y
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
CONFIG_CRYPTO_DEV_CCREE=m
# CONFIG_CRYPTO_DEV_HISI_SEC is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
# CONFIG_CRYPTO_DEV_SA2UL is not set
# CONFIG_CRYPTO_DEV_KEEMBAY_OCS_AES_SM4 is not set
# CONFIG_CRYPTO_DEV_KEEMBAY_OCS_ECC is not set
# CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU is not set
# CONFIG_CRYPTO_DEV_ASPEED is not set

#
# Certificates for signature checking
#
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_LINEAR_RANGES=y
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_CORDIC=y
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=m
# CONFIG_CRC64_ROCKSOFT is not set
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=m
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
CONFIG_CRC32_SARWATE=y
# CONFIG_CRC32_BIT is not set
CONFIG_CRC64=y
CONFIG_CRC4=m
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=y
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_842_COMPRESS=y
CONFIG_842_DECOMPRESS=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=m
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=m
CONFIG_XZ_DEC_X86=y
# CONFIG_XZ_DEC_POWERPC is not set
CONFIG_XZ_DEC_IA64=y
# CONFIG_XZ_DEC_ARM is not set
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_SPARC is not set
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
CONFIG_XZ_DEC_TEST=m
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y
CONFIG_ARCH_HAS_DMA_PREP_COHERENT=y
CONFIG_SWIOTLB=y
# CONFIG_DMA_RESTRICTED_POOL is not set
CONFIG_DMA_NONCOHERENT_MMAP=y
CONFIG_DMA_COHERENT_POOL=y
CONFIG_DMA_DIRECT_REMAP=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CPUMASK_OFFSTACK=y
# CONFIG_FORCE_NR_CPUS is not set
CONFIG_CLZ_TAB=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_LIBFDT=y
CONFIG_UCS2_STRING=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_FONT_SUPPORT=y
CONFIG_FONT_8x16=y
CONFIG_FONT_AUTOSELECT=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_ALWAYS_INIT=y
# CONFIG_PARMAN is not set
# CONFIG_OBJAGG is not set
# end of Library routines

CONFIG_GENERIC_IOREMAP=y
CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_SYMBOLIC_ERRNAME is not set
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_AS_HAS_NON_CONST_LEB128=y
CONFIG_DEBUG_INFO_NONE=y
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_VMLINUX_MAP is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
# CONFIG_MAGIC_SYSRQ_SERIAL is not set
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_HAVE_ARCH_KGDB_QXFER_PKT=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
CONFIG_CC_HAS_UBSAN_BOUNDS=y
CONFIG_CC_HAS_UBSAN_ARRAY_BOUNDS=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_ARRAY_BOUNDS=y
CONFIG_UBSAN_SHIFT=y
# CONFIG_UBSAN_UNREACHABLE is not set
CONFIG_UBSAN_BOOL=y
CONFIG_UBSAN_ENUM=y
CONFIG_UBSAN_SANITIZE_ALL=y
CONFIG_TEST_UBSAN=m
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# end of Networking Debugging

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT=y
CONFIG_SLUB_DEBUG=y
CONFIG_SLUB_DEBUG_ON=y
CONFIG_PAGE_OWNER=y
# CONFIG_PAGE_TABLE_CHECK is not set
CONFIG_PAGE_POISONING=y
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
# CONFIG_PTDUMP_DEBUGFS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SHRINKER_DEBUG is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
CONFIG_DEBUG_VM_IRQSOFF=y
CONFIG_DEBUG_VM=y
# CONFIG_DEBUG_VM_MAPLE_TREE is not set
# CONFIG_DEBUG_VM_RB is not set
CONFIG_DEBUG_VM_PGFLAGS=y
CONFIG_DEBUG_VM_PGTABLE=y
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging

CONFIG_DEBUG_TIMEKEEPING=y
CONFIG_DEBUG_PREEMPT=y

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_LOCK_TORTURE_TEST=m
CONFIG_WW_MUTEX_SELFTEST=m
# CONFIG_SCF_TORTURE_TEST is not set
# CONFIG_CSD_LOCK_WAIT_DEBUG is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
CONFIG_WARN_ALL_UNSEEDED_RANDOM=y
CONFIG_DEBUG_KOBJECT=y

#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
CONFIG_DEBUG_SG=y
CONFIG_DEBUG_NOTIFIERS=y
CONFIG_BUG_ON_DATA_CORRUPTION=y
# CONFIG_DEBUG_MAPLE_TREE is not set
# end of Debug kernel data structures

CONFIG_DEBUG_CREDENTIALS=y

#
# RCU Debugging
#
CONFIG_TORTURE_TEST=y
# CONFIG_RCU_SCALE_TEST is not set
CONFIG_RCU_TORTURE_TEST=y
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
CONFIG_LATENCYTOP=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_SAMPLES is not set
# CONFIG_STRICT_DEVMEM is not set

#
# riscv Debugging
#
# end of riscv Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
CONFIG_NOTIFIER_ERROR_INJECTION=m
CONFIG_PM_NOTIFIER_ERROR_INJECT=m
# CONFIG_OF_RECONFIG_NOTIFIER_ERROR_INJECT is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
CONFIG_RBTREE_TEST=y
# CONFIG_REED_SOLOMON_TEST is not set
CONFIG_INTERVAL_TREE_TEST=m
CONFIG_PERCPU_TEST=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_TEST_HEXDUMP=y
CONFIG_STRING_SELFTEST=m
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_STRSCPY is not set
# CONFIG_TEST_KSTRTOX is not set
CONFIG_TEST_PRINTF=m
# CONFIG_TEST_SCANF is not set
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=y
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_SIPHASH is not set
CONFIG_TEST_IDA=y
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
CONFIG_TEST_USER_COPY=m
CONFIG_FIND_BIT_BENCHMARK=y
CONFIG_TEST_FIRMWARE=m
CONFIG_TEST_SYSCTL=y
CONFIG_TEST_UDELAY=y
CONFIG_TEST_STATIC_KEYS=m
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking

# CONFIG_WARN_MISSING_DOCUMENTS is not set
# CONFIG_WARN_ABI_ERRORS is not set
# end of Kernel hacking

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Brian Foster]

On Tue, Nov 22, 2022 at 10:04:48AM +0100, Lukas Czerner wrote:
> On Mon, Nov 21, 2022 at 09:48:18AM -0800, Darrick J. Wong wrote:
> > On Mon, Nov 21, 2022 at 03:28:52PM +0100, Lukas Czerner wrote:
> > > In memory quota format relies on quota infrastructure to store dquot
> > > information for us. While conventional quota formats for file systems
> > > with persistent storage can load quota information into dquot from the
> > > storage on-demand and hence quota dquot shrinker can free any dquot that
> > > is not currently being used, it must be avoided here. Otherwise we can
> > > lose valuable information, user provided limits, because there is no
> > > persistent storage to load the information from afterwards.
> > > 
> > > One information that in-memory quota format needs to keep track of is a
> > > sorted list of ids for each quota type. This is done by utilizing an rb
> > > tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> > > 
> > > This format can be used to support quota on file system without persistent
> > > storage such as tmpfs.
> > > 
> > > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > > ---
> > >  fs/quota/Kconfig           |   8 ++
> > >  fs/quota/Makefile          |   1 +
> > >  fs/quota/dquot.c           |   3 +
> > >  fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
> > >  include/linux/quota.h      |   7 +-
> > >  include/uapi/linux/quota.h |   1 +
> > >  6 files changed, 279 insertions(+), 1 deletion(-)
> > >  create mode 100644 fs/quota/quota_mem.c
> > > 
> > > diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> > > index b59cd172b5f9..8ea9656ca37b 100644
> > > --- a/fs/quota/Kconfig
> > > +++ b/fs/quota/Kconfig
> > > @@ -67,6 +67,14 @@ config QFMT_V2
> > >  	  also supports 64-bit inode and block quota limits. If you need this
> > >  	  functionality say Y here.
> > >  
> > > +config QFMT_MEM
> > > +	tristate "Quota in-memory format support "
> > > +	depends on QUOTA
> > > +	help
> > > +	  This config option enables kernel support for in-memory quota
> > > +	  format support. Useful to support quota on file system without
> > > +	  permanent storage. If you need this functionality say Y here.
> > > +
> > >  config QUOTACTL
> > >  	bool
> > >  	default n
> > > diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> > > index 9160639daffa..935be3f7b731 100644
> > > --- a/fs/quota/Makefile
> > > +++ b/fs/quota/Makefile
> > > @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
> > >  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
> > >  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
> > >  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> > > +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> > > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > > index 0427b44bfee5..f1a7a03632a2 100644
> > > --- a/fs/quota/dquot.c
> > > +++ b/fs/quota/dquot.c
> > > @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
> > >  	spin_lock(&dq_list_lock);
> > >  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
> > >  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> > > +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> > > +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> > > +			continue;
> > >  		remove_dquot_hash(dquot);
> > >  		remove_free_dquot(dquot);
> > >  		remove_inuse(dquot);
> > > diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> > > new file mode 100644
> > > index 000000000000..7d5e82122143
> > > --- /dev/null
> > > +++ b/fs/quota/quota_mem.c
> > > @@ -0,0 +1,260 @@
> > > +// SPDX-License-Identifier: GPL-2.0-only
> > > +/*
> > > + * In memory quota format relies on quota infrastructure to store dquot
> > > + * information for us. While conventional quota formats for file systems
> > > + * with persistent storage can load quota information into dquot from the
> > > + * storage on-demand and hence quota dquot shrinker can free any dquot
> > > + * that is not currently being used, it must be avoided here. Otherwise we
> > > + * can lose valuable information, user provided limits, because there is
> > > + * no persistent storage to load the information from afterwards.
> > 
> > Hmm.  dquots can't /ever/ be reclaimed?  struct dquot is ~256 bytes, and
> > assuming 32-bit uids, the upper bound on dquot usage is 2^(32+8) bytes
> > == 1TB of memory usage?  Once allocated, you'd have to reboot the whole
> > machine to get that memory back?
> 
> Hi Darrick,
> 
> maybe there are some improvements to the documentation to be made. The
> dquots will be freed on unmount as it would normaly. Also only dquots
> containing actual user modified limits, so only dquots that are not
> DQ_FAKE_B are prevented to be reclaimed by a shrinker see the condition in
> dqcache_shrink_scan().
> 
> > 
> > Would it be wise to "persist" dquot contents to a (private) tmpfs file
> > to facilitate incore dquot reclaim?  The tmpfs file data can be paged
> > out, or even punched if all the dquot records in that page go back to
> > default settings.
> 
> The dquot will be flagged as DQ_FAKE_B once the limits are set to 0. But
> when I think about it this pose a problem with the default quota limits
> because that would change the limits to the defaults once the dquot is
> reclaimed and then allocated again. This can be solved by making a
> custom .set_dqblk().
> 

Hi Lukas,

I'm a little confused.. does the above mean the dquot limit would have
to be explicitly set to 0 by the admin in order to be reclaimed, even
though that limit would be initialized to some non-zero value via the
mount option? If so, wouldn't we want the ability to reclaim a dquot
when the usage counts go down to zero (i.e., so the user/group/whatever
for the dquot no longer has any tmpfs inode/block footprint), assuming
the limit hasn't also been modified from the initial defaults?

Brian

> Other than this problem, does this address your concern about dquot
> reclaim?
> 
> Thanks!
> -Lukas
> 
> > 
> > --D
> > 
> > > + *
> > > + * One information that in-memory quota format needs to keep track of is
> > > + * a sorted list of ids for each quota type. This is done by utilizing
> > > + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> > > + * type.
> > > + *
> > > + * This format can be used to support quota on file system without persistent
> > > + * storage such as tmpfs.
> > > + */
> > > +#include <linux/errno.h>
> > > +#include <linux/fs.h>
> > > +#include <linux/mount.h>
> > > +#include <linux/kernel.h>
> > > +#include <linux/init.h>
> > > +#include <linux/module.h>
> > > +#include <linux/slab.h>
> > > +#include <linux/rbtree.h>
> > > +
> > > +#include <linux/quotaops.h>
> > > +#include <linux/quota.h>
> > > +
> > > +MODULE_AUTHOR("Lukas Czerner");
> > > +MODULE_DESCRIPTION("Quota in-memory format support");
> > > +MODULE_LICENSE("GPL");
> > > +
> > > +/*
> > > + * The following constants define the amount of time given a user
> > > + * before the soft limits are treated as hard limits (usually resulting
> > > + * in an allocation failure). The timer is started when the user crosses
> > > + * their soft limit, it is reset when they go below their soft limit.
> > > + */
> > > +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> > > +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> > > +
> > > +struct quota_id {
> > > +	struct rb_node	node;
> > > +	qid_t		id;
> > > +};
> > > +
> > > +static int mem_check_quota_file(struct super_block *sb, int type)
> > > +{
> > > +	/* There is no real quota file, nothing to do */
> > > +	return 1;
> > > +}
> > > +
> > > +/*
> > > + * There is no real quota file. Just allocate rb_root for quota ids and
> > > + * set limits
> > > + */
> > > +static int mem_read_file_info(struct super_block *sb, int type)
> > > +{
> > > +	struct quota_info *dqopt = sb_dqopt(sb);
> > > +	struct mem_dqinfo *info = &dqopt->info[type];
> > > +	int ret = 0;
> > > +
> > > +	down_read(&dqopt->dqio_sem);
> > > +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> > > +		ret = -EINVAL;
> > > +		goto out_unlock;
> > > +	}
> > > +
> > > +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> > > +	if (!info->dqi_priv) {
> > > +		ret = -ENOMEM;
> > > +		goto out_unlock;
> > > +	}
> > > +
> > > +	/*
> > > +	 * Used space is stored as unsigned 64-bit value in bytes but
> > > +	 * quota core supports only signed 64-bit values so use that
> > > +	 * as a limit
> > > +	 */
> > > +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> > > +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> > > +
> > > +	info->dqi_bgrace = MAX_DQ_TIME;
> > > +	info->dqi_igrace = MAX_IQ_TIME;
> > > +	info->dqi_flags = 0;
> > > +
> > > +out_unlock:
> > > +	up_read(&dqopt->dqio_sem);
> > > +	return ret;
> > > +}
> > > +
> > > +static int mem_write_file_info(struct super_block *sb, int type)
> > > +{
> > > +	/* There is no real quota file, nothing to do */
> > > +	return 0;
> > > +}
> > > +
> > > +/*
> > > + * Free all the quota_id entries in the rb tree and rb_root.
> > > + */
> > > +static int mem_free_file_info(struct super_block *sb, int type)
> > > +{
> > > +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> > > +	struct rb_root *root = info->dqi_priv;
> > > +	struct quota_id *entry;
> > > +	struct rb_node *node;
> > > +
> > > +	info->dqi_priv = NULL;
> > > +	node = rb_first(root);
> > > +	while (node) {
> > > +		entry = rb_entry(node, struct quota_id, node);
> > > +		node = rb_next(&entry->node);
> > > +
> > > +		rb_erase(&entry->node, root);
> > > +		kfree(entry);
> > > +	}
> > > +
> > > +	kfree(root);
> > > +	return 0;
> > > +}
> > > +
> > > +/*
> > > + * There is no real quota file, nothing to read. Just insert the id in
> > > + * the rb tree.
> > > + */
> > > +static int mem_read_dquot(struct dquot *dquot)
> > > +{
> > > +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> > > +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> > > +	struct rb_node *parent = NULL, *new_node = NULL;
> > > +	struct quota_id *new_entry, *entry;
> > > +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> > > +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> > > +	int ret = 0;
> > > +
> > > +	down_write(&dqopt->dqio_sem);
> > > +
> > > +	while (*n) {
> > > +		parent = *n;
> > > +		entry = rb_entry(parent, struct quota_id, node);
> > > +
> > > +		if (id < entry->id)
> > > +			n = &(*n)->rb_left;
> > > +		else if (id > entry->id)
> > > +			n = &(*n)->rb_right;
> > > +		else
> > > +			goto out_unlock;
> > > +	}
> > > +
> > > +	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
> > > +	if (!new_entry) {
> > > +		ret = -ENOMEM;
> > > +		goto out_unlock;
> > > +	}
> > > +
> > > +	new_entry->id = id;
> > > +	new_node = &new_entry->node;
> > > +	rb_link_node(new_node, parent, n);
> > > +	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
> > > +	dquot->dq_off = 1;
> > > +	/*
> > > +	 * Make sure dquot is never released by a shrinker because we
> > > +	 * rely on quota infrastructure to store mem_dqblk in dquot.
> > > +	 */
> > > +	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
> > > +	set_bit(DQ_FAKE_B, &dquot->dq_flags);
> > > +
> > > +out_unlock:
> > > +	up_write(&dqopt->dqio_sem);
> > > +	return ret;
> > > +}
> > > +
> > > +static int mem_write_dquot(struct dquot *dquot)
> > > +{
> > > +	/* There is no real quota file, nothing to do */
> > > +	return 0;
> > > +}
> > > +
> > > +static int mem_release_dquot(struct dquot *dquot)
> > > +{
> > > +	/*
> > > +	 * Everything is in memory only, release once we're done with
> > > +	 * quota via mem_free_file_info().
> > > +	 */
> > > +	return 0;
> > > +}
> > > +
> > > +static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
> > > +{
> > > +	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
> > > +	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
> > > +	qid_t id = from_kqid(&init_user_ns, *qid);
> > > +	struct quota_info *dqopt = sb_dqopt(sb);
> > > +	struct quota_id *entry = NULL;
> > > +	int ret = 0;
> > > +
> > > +	down_read(&dqopt->dqio_sem);
> > > +	while (node) {
> > > +		entry = rb_entry(node, struct quota_id, node);
> > > +
> > > +		if (id < entry->id)
> > > +			node = node->rb_left;
> > > +		else if (id > entry->id)
> > > +			node = node->rb_right;
> > > +		else
> > > +			goto got_next_id;
> > > +	}
> > > +
> > > +	if (!entry) {
> > > +		ret = -ENOENT;
> > > +		goto out_unlock;
> > > +	}
> > > +
> > > +	if (id > entry->id) {
> > > +		node = rb_next(&entry->node);
> > > +		if (!node) {
> > > +			ret = -ENOENT;
> > > +			goto out_unlock;
> > > +		}
> > > +		entry = rb_entry(node, struct quota_id, node);
> > > +	}
> > > +
> > > +got_next_id:
> > > +	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
> > > +out_unlock:
> > > +	up_read(&dqopt->dqio_sem);
> > > +	return ret;
> > > +}
> > > +
> > > +static const struct quota_format_ops mem_format_ops = {
> > > +	.check_quota_file	= mem_check_quota_file,
> > > +	.read_file_info		= mem_read_file_info,
> > > +	.write_file_info	= mem_write_file_info,
> > > +	.free_file_info		= mem_free_file_info,
> > > +	.read_dqblk		= mem_read_dquot,
> > > +	.commit_dqblk		= mem_write_dquot,
> > > +	.release_dqblk		= mem_release_dquot,
> > > +	.get_next_id		= mem_get_next_id,
> > > +};
> > > +
> > > +static struct quota_format_type mem_quota_format = {
> > > +	.qf_fmt_id	= QFMT_MEM_ONLY,
> > > +	.qf_ops		= &mem_format_ops,
> > > +	.qf_owner	= THIS_MODULE
> > > +};
> > > +
> > > +static int __init init_mem_quota_format(void)
> > > +{
> > > +	return register_quota_format(&mem_quota_format);
> > > +}
> > > +
> > > +static void __exit exit_mem_quota_format(void)
> > > +{
> > > +	unregister_quota_format(&mem_quota_format);
> > > +}
> > > +
> > > +module_init(init_mem_quota_format);
> > > +module_exit(exit_mem_quota_format);
> > > diff --git a/include/linux/quota.h b/include/linux/quota.h
> > > index fd692b4a41d5..4398e05c8b72 100644
> > > --- a/include/linux/quota.h
> > > +++ b/include/linux/quota.h
> > > @@ -285,7 +285,11 @@ static inline void dqstats_dec(unsigned int type)
> > >  #define DQ_FAKE_B	3	/* no limits only usage */
> > >  #define DQ_READ_B	4	/* dquot was read into memory */
> > >  #define DQ_ACTIVE_B	5	/* dquot is active (dquot_release not called) */
> > > -#define DQ_LASTSET_B	6	/* Following 6 bits (see QIF_) are reserved\
> > > +#define DQ_NO_SHRINK_B	6	/* modified dquot (not DQ_FAKE_B) is never to
> > > +				 * be released by a shrinker. It should remain
> > > +				 * in memory until quotas are being disabled on
> > > +				 * unmount. */
> > > +#define DQ_LASTSET_B	7	/* Following 6 bits (see QIF_) are reserved\
> > >  				 * for the mask of entries set via SETQUOTA\
> > >  				 * quotactl. They are set under dq_data_lock\
> > >  				 * and the quota format handling dquot can\
> > > @@ -536,6 +540,7 @@ struct quota_module_name {
> > >  	{QFMT_VFS_OLD, "quota_v1"},\
> > >  	{QFMT_VFS_V0, "quota_v2"},\
> > >  	{QFMT_VFS_V1, "quota_v2"},\
> > > +	{QFMT_MEM_ONLY, "quota_mem"},\
> > >  	{0, NULL}}
> > >  
> > >  #endif /* _QUOTA_ */
> > > diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
> > > index f17c9636a859..ee9d2bad00c7 100644
> > > --- a/include/uapi/linux/quota.h
> > > +++ b/include/uapi/linux/quota.h
> > > @@ -77,6 +77,7 @@
> > >  #define	QFMT_VFS_V0 2
> > >  #define QFMT_OCFS2 3
> > >  #define	QFMT_VFS_V1 4
> > > +#define	QFMT_MEM_ONLY 5
> > >  
> > >  /* Size of block in which space limits are passed through the quota
> > >   * interface */
> > > -- 
> > > 2.38.1
> > > 
> > 
> 
> 

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Brian Foster]

On Mon, Nov 21, 2022 at 03:28:53PM +0100, Lukas Czerner wrote:
> Implement user and group quota support for tmpfs using system quota file
> in vfsv0 quota format. Because everything in tmpfs is temporary and as a
> result is lost on umount, the quota files are initialized on every
> mount. This also goes for quota limits, that needs to be set up after
> every mount.
> 
> The quota support in tmpfs is well separated from the rest of the
> filesystem and is only enabled using mount option -o quota (and
> usrquota and grpquota for compatibility reasons). Only quota accounting
> is enabled this way, enforcement needs to be enable by regular quota
> tools (using Q_QUOTAON ioctl).
> 

FWIW, just from a first look through, it seems like this could be made a
little easier to review by splitting it up into a few smaller patches.
For example, could the accounting and enforcement support split into
separate patches?

A few more random notes/questions...

> Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> ---
> v2: Use the newly introduced in-memory only quota foramt QFMT_MEM_ONLY
> 
>  Documentation/filesystems/tmpfs.rst |  12 ++
>  fs/quota/dquot.c                    |  10 +-
>  include/linux/shmem_fs.h            |   3 +
>  mm/shmem.c                          | 200 ++++++++++++++++++++++++----
>  4 files changed, 197 insertions(+), 28 deletions(-)
> 
...
> diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> index f1a7a03632a2..007604e7eb09 100644
> --- a/fs/quota/dquot.c
> +++ b/fs/quota/dquot.c
> @@ -716,11 +716,11 @@ int dquot_quota_sync(struct super_block *sb, int type)
>  	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
>  		if (type != -1 && cnt != type)
>  			continue;
> -		if (!sb_has_quota_active(sb, cnt))
> -			continue;
> -		inode_lock(dqopt->files[cnt]);
> -		truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> -		inode_unlock(dqopt->files[cnt]);
> +		if (sb_has_quota_active(sb, cnt) && dqopt->files[cnt]) {
> +			inode_lock(dqopt->files[cnt]);
> +			truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> +			inode_unlock(dqopt->files[cnt]);
> +		}

Perhaps a separate patch with some context for the change in the commit
log? (Maybe it's obvious to others, I'm just not familiar with the core
quota code.)

>  	}
>  
>  	return 0;
...
> diff --git a/mm/shmem.c b/mm/shmem.c
> index c1d8b8a1aa3b..26f2effd8f7c 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
...
> @@ -198,26 +208,34 @@ static inline void shmem_unacct_blocks(unsigned long flags, long pages)
>  		vm_unacct_memory(pages * VM_ACCT(PAGE_SIZE));
>  }
>  
> -static inline bool shmem_inode_acct_block(struct inode *inode, long pages)
> +static inline int shmem_inode_acct_block(struct inode *inode, long pages)
>  {

It seems like the refactoring to make this helper return an error could
be a separate patch.

>  	struct shmem_inode_info *info = SHMEM_I(inode);
>  	struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
> +	int err = -ENOSPC;
>  
>  	if (shmem_acct_block(info->flags, pages))
> -		return false;
> +		return err;
>  
>  	if (sbinfo->max_blocks) {
>  		if (percpu_counter_compare(&sbinfo->used_blocks,
>  					   sbinfo->max_blocks - pages) > 0)
>  			goto unacct;
> +		if (dquot_alloc_block_nodirty(inode, pages)) {
> +			err = -EDQUOT;
> +			goto unacct;
> +		}

It looks like the dquot_alloc_*() helper already returns -EDQUOT, FWIW,
though it's not clear to me if you wanted to mask out other potential
errors.

>  		percpu_counter_add(&sbinfo->used_blocks, pages);
> +	} else if (dquot_alloc_block_nodirty(inode, pages)) {
> +		err = -EDQUOT;
> +		goto unacct;
>  	}
>  
> -	return true;
> +	return 0;
>  
>  unacct:
>  	shmem_unacct_blocks(info->flags, pages);
> -	return false;
> +	return err;
>  }
>  
>  static inline void shmem_inode_unacct_blocks(struct inode *inode, long pages)
...
> @@ -247,6 +267,62 @@ bool vma_is_shmem(struct vm_area_struct *vma)
>  static LIST_HEAD(shmem_swaplist);
>  static DEFINE_MUTEX(shmem_swaplist_mutex);
>  
> +#ifdef SHMEM_QUOTA_TMPFS
> +
> +#define SHMEM_MAXQUOTAS 2
> +
> +/*
> + * We don't have any quota files to read, or write to/from, but quota code
> + * requires .quota_read and .quota_write to exist.
> + */
> +static ssize_t shmem_quota_write(struct super_block *sb, int type,
> +				const char *data, size_t len, loff_t off)
> +{
> +	return len;
> +}
> +
> +static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
> +			       size_t len, loff_t off)
> +{
> +	return len;
> +}
> +
> +
> +static int shmem_enable_quotas(struct super_block *sb)
> +{
> +	int type, err = 0;
> +
> +	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;

A brief comment on the flags would be helpful.

> +	for (type = 0; type < SHMEM_MAXQUOTAS; type++) {
> +		err = dquot_load_quota_sb(sb, type, QFMT_MEM_ONLY,
> +					  DQUOT_USAGE_ENABLED);
> +		if (err)
> +			goto out_err;
> +	}
> +	return 0;
> +
> +out_err:
> +	pr_warn("tmpfs: failed to enable quota tracking (type=%d, err=%d)\n",
> +		type, err);
> +	for (type--; type >= 0; type--)
> +		dquot_quota_off(sb, type);
> +	return err;
> +}
> +
> +static void shmem_disable_quotas(struct super_block *sb)
> +{
> +	int type;
> +
> +	for (type = 0; type < SHMEM_MAXQUOTAS; type++)
> +		dquot_quota_off(sb, type);
> +}
> +
> +static struct dquot **shmem_get_dquots(struct inode *inode)
> +{
> +	return SHMEM_I(inode)->i_dquot;
> +}
> +#endif /* SHMEM_QUOTA_TMPFS */
> +
>  /*
>   * shmem_reserve_inode() performs bookkeeping to reserve a shmem inode, and
>   * produces a novel ino for the newly allocated inode.
> @@ -353,7 +429,6 @@ static void shmem_recalc_inode(struct inode *inode)
>  	freed = info->alloced - info->swapped - inode->i_mapping->nrpages;
>  	if (freed > 0) {
>  		info->alloced -= freed;
> -		inode->i_blocks -= freed * BLOCKS_PER_PAGE;

Did these various ->i_blocks updates get moved somewhere?

>  		shmem_inode_unacct_blocks(inode, freed);
>  	}
>  }
...
> @@ -2384,6 +2467,35 @@ static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
>  	return inode;
>  }
>  
> +static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
> +				     umode_t mode, dev_t dev, unsigned long flags)
> +{
> +	int err;
> +	struct inode *inode;
> +
> +	inode = shmem_get_inode_noquota(sb, dir, mode, dev, flags);
> +	if (inode) {
> +		err = dquot_initialize(inode);
> +		if (err)
> +			goto errout;
> +
> +		err = dquot_alloc_inode(inode);
> +		if (err) {
> +			dquot_drop(inode);
> +			goto errout;
> +		}
> +	}
> +	return inode;
> +
> +errout:
> +	inode->i_flags |= S_NOQUOTA;

I assume this is here so the free path won't unaccount an inode from the
quota that wasn't able to allocate, but is it needed with the
dquot_drop() above? If so, a comment might be helpful. :)

Brian

> +	iput(inode);
> +	shmem_free_inode(sb);
> +	if (err)
> +		return ERR_PTR(err);
> +	return NULL;
> +}
> +
>  #ifdef CONFIG_USERFAULTFD
>  int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
>  			   pmd_t *dst_pmd,
> @@ -2403,7 +2515,7 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
>  	int ret;
>  	pgoff_t max_off;
>  
> -	if (!shmem_inode_acct_block(inode, 1)) {
> +	if (shmem_inode_acct_block(inode, 1)) {
>  		/*
>  		 * We may have got a page, returned -ENOENT triggering a retry,
>  		 * and now we find ourselves with -ENOMEM. Release the page, to
> @@ -2487,7 +2599,6 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
>  
>  	spin_lock_irq(&info->lock);
>  	info->alloced++;
> -	inode->i_blocks += BLOCKS_PER_PAGE;
>  	shmem_recalc_inode(inode);
>  	spin_unlock_irq(&info->lock);
>  
> @@ -2908,7 +3019,7 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
>  	int error = -ENOSPC;
>  
>  	inode = shmem_get_inode(dir->i_sb, dir, mode, dev, VM_NORESERVE);
> -	if (inode) {
> +	if (!IS_ERR_OR_NULL(inode)) {
>  		error = simple_acl_create(dir, inode);
>  		if (error)
>  			goto out_iput;
> @@ -2924,7 +3035,8 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
>  		inode_inc_iversion(dir);
>  		d_instantiate(dentry, inode);
>  		dget(dentry); /* Extra count - pin the dentry in core */
> -	}
> +	} else if (IS_ERR(inode))
> +		error = PTR_ERR(inode);
>  	return error;
>  out_iput:
>  	iput(inode);
> @@ -2939,7 +3051,7 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
>  	int error = -ENOSPC;
>  
>  	inode = shmem_get_inode(dir->i_sb, dir, mode, 0, VM_NORESERVE);
> -	if (inode) {
> +	if (!IS_ERR_OR_NULL(inode)) {
>  		error = security_inode_init_security(inode, dir,
>  						     NULL,
>  						     shmem_initxattrs, NULL);
> @@ -2949,7 +3061,8 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
>  		if (error)
>  			goto out_iput;
>  		d_tmpfile(file, inode);
> -	}
> +	} else if (IS_ERR(inode))
> +		error = PTR_ERR(inode);
>  	return finish_open_simple(file, error);
>  out_iput:
>  	iput(inode);
> @@ -3126,6 +3239,8 @@ static int shmem_symlink(struct user_namespace *mnt_userns, struct inode *dir,
>  				VM_NORESERVE);
>  	if (!inode)
>  		return -ENOSPC;
> +	else if (IS_ERR(inode))
> +		return PTR_ERR(inode);
>  
>  	error = security_inode_init_security(inode, dir, &dentry->d_name,
>  					     shmem_initxattrs, NULL);
> @@ -3443,6 +3558,7 @@ enum shmem_param {
>  	Opt_uid,
>  	Opt_inode32,
>  	Opt_inode64,
> +	Opt_quota,
>  };
>  
>  static const struct constant_table shmem_param_enums_huge[] = {
> @@ -3464,6 +3580,9 @@ const struct fs_parameter_spec shmem_fs_parameters[] = {
>  	fsparam_u32   ("uid",		Opt_uid),
>  	fsparam_flag  ("inode32",	Opt_inode32),
>  	fsparam_flag  ("inode64",	Opt_inode64),
> +	fsparam_flag  ("quota",		Opt_quota),
> +	fsparam_flag  ("usrquota",	Opt_quota),
> +	fsparam_flag  ("grpquota",	Opt_quota),
>  	{}
>  };
>  
> @@ -3547,6 +3666,13 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
>  		ctx->full_inums = true;
>  		ctx->seen |= SHMEM_SEEN_INUMS;
>  		break;
> +	case Opt_quota:
> +#ifdef CONFIG_QUOTA
> +		ctx->seen |= SHMEM_SEEN_QUOTA;
> +#else
> +		goto unsupported_parameter;
> +#endif
> +		break;
>  	}
>  	return 0;
>  
> @@ -3646,6 +3772,12 @@ static int shmem_reconfigure(struct fs_context *fc)
>  		goto out;
>  	}
>  
> +	if (ctx->seen & SHMEM_SEEN_QUOTA &&
> +	    !sb_any_quota_loaded(fc->root->d_sb)) {
> +		err = "Cannot enable quota on remount";
> +		goto out;
> +	}
> +
>  	if (ctx->seen & SHMEM_SEEN_HUGE)
>  		sbinfo->huge = ctx->huge;
>  	if (ctx->seen & SHMEM_SEEN_INUMS)
> @@ -3728,6 +3860,9 @@ static void shmem_put_super(struct super_block *sb)
>  {
>  	struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
>  
> +#ifdef SHMEM_QUOTA_TMPFS
> +	shmem_disable_quotas(sb);
> +#endif
>  	free_percpu(sbinfo->ino_batch);
>  	percpu_counter_destroy(&sbinfo->used_blocks);
>  	mpol_put(sbinfo->mpol);
> @@ -3805,14 +3940,26 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
>  #endif
>  	uuid_gen(&sb->s_uuid);
>  
> +#ifdef SHMEM_QUOTA_TMPFS
> +	if (ctx->seen & SHMEM_SEEN_QUOTA) {
> +		sb->dq_op = &dquot_operations;
> +		sb->s_qcop = &dquot_quotactl_sysfile_ops;
> +		sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
> +
> +		if (shmem_enable_quotas(sb))
> +			goto failed;
> +	}
> +#endif  /* SHMEM_QUOTA_TMPFS */
> +
>  	inode = shmem_get_inode(sb, NULL, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
> -	if (!inode)
> +	if (IS_ERR_OR_NULL(inode))
>  		goto failed;
>  	inode->i_uid = sbinfo->uid;
>  	inode->i_gid = sbinfo->gid;
>  	sb->s_root = d_make_root(inode);
>  	if (!sb->s_root)
>  		goto failed;
> +
>  	return 0;
>  
>  failed:
> @@ -3976,7 +4123,12 @@ static const struct super_operations shmem_ops = {
>  #ifdef CONFIG_TMPFS
>  	.statfs		= shmem_statfs,
>  	.show_options	= shmem_show_options,
> -#endif
> +#ifdef CONFIG_QUOTA
> +	.quota_read	= shmem_quota_read,
> +	.quota_write	= shmem_quota_write,
> +	.get_dquots	= shmem_get_dquots,
> +#endif /* CONFIG_QUOTA */
> +#endif /* CONFIG_TMPFS */
>  	.evict_inode	= shmem_evict_inode,
>  	.drop_inode	= generic_delete_inode,
>  	.put_super	= shmem_put_super,
> @@ -4196,8 +4348,10 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l
>  
>  	inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
>  				flags);
> -	if (unlikely(!inode)) {
> +	if (IS_ERR_OR_NULL(inode)) {
>  		shmem_unacct_size(flags, size);
> +		if (IS_ERR(inode))
> +			return (struct file *)inode;
>  		return ERR_PTR(-ENOSPC);
>  	}
>  	inode->i_flags |= i_flags;
> -- 
> 2.38.1
> 
> 

Re: [PATCH v2 3/3] shmem: implement mount options for global quota limits

[Brian Foster]

On Mon, Nov 21, 2022 at 03:28:54PM +0100, Lukas Czerner wrote:
> Implement a set of mount options for setting glopbal quota limits on
> tmpfs.
> 
> usrquota_block_hardlimit - global user quota block hard limit
> usrquota_inode_hardlimit - global user quota inode hard limit
> grpquota_block_hardlimit - global group quota block hard limit
> grpquota_inode_hardlimit - global group quota inode hard limit
> 
> Quota limit parameters accept a suffix k, m or g for kilo, mega and giga
> and can't be changed on remount. Default global quota limits are taking
> effect for any and all user/group except root the first time the quota
> entry for user/group id is being accessed - typically the first time an
> inode with a particular id ownership is being created after the mount. In
> other words, instead of the limits being initialized to zero, they are
> initialized with the particular value provided with these mount options.
> The limits can be changed for any user/group id at any time as it normally
> can.
> 
> When any of the default quota limits are set, quota enforcement is enabled
> automatically as well.
> 
> None of the quota related mount options can be set or changed on remount.
> 
> Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> ---
> v2: Rename mount option to something more sensible.
>     Improve documentation.
>     Check if the user provided limit isn't too large.
> 
>  Documentation/filesystems/tmpfs.rst |  36 +++++--
>  include/linux/shmem_fs.h            |  10 ++
>  mm/shmem.c                          | 162 ++++++++++++++++++++++++++--
>  3 files changed, 190 insertions(+), 18 deletions(-)
> 
...
> diff --git a/mm/shmem.c b/mm/shmem.c
> index 26f2effd8f7c..a66a1e4cd0cb 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
...
> @@ -271,6 +273,57 @@ static DEFINE_MUTEX(shmem_swaplist_mutex);
>  
>  #define SHMEM_MAXQUOTAS 2
>  
> +int shmem_dquot_acquire(struct dquot *dquot)
> +{
> +	int type, ret = 0;
> +	unsigned int memalloc;
> +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> +	struct shmem_sb_info *sbinfo = SHMEM_SB(dquot->dq_sb);
> +
> +
> +	mutex_lock(&dquot->dq_lock);
> +	memalloc = memalloc_nofs_save();
> +	if (test_bit(DQ_READ_B, &dquot->dq_flags)) {
> +		smp_mb__before_atomic();
> +		set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
> +		goto out_iolock;
> +	}
> +
> +	type = dquot->dq_id.type;
> +	ret = dqopt->ops[type]->read_dqblk(dquot);

So according to patch 1, this callback would alloc the quota id and set
DQ_FAKE_B and DQ_NO_SHRINK_B on the dquot. The shrinker will skip dquots
that are (noshrink && !fake). So as of this point the dquot would be
reclaimable if it were ultimately freed with no other changes, right?

> +	if (ret < 0)
> +		goto out_iolock;
> +	/* Set the defaults */
> +	if (type == USRQUOTA) {
> +		dquot->dq_dqb.dqb_bhardlimit =
> +			(sbinfo->usrquota_block_hardlimit << PAGE_SHIFT);
> +		dquot->dq_dqb.dqb_ihardlimit = sbinfo->usrquota_inode_hardlimit;
> +	} else if (type == GRPQUOTA) {
> +		dquot->dq_dqb.dqb_bhardlimit =
> +			(sbinfo->grpquota_block_hardlimit << PAGE_SHIFT);
> +		dquot->dq_dqb.dqb_ihardlimit = sbinfo->grpquota_inode_hardlimit;
> +	}

Then we set default limits from the mount option on the dquot. The dquot
is still has DQ_FAKE_B, so presumably the dquot would remain reclaimable
(once freed) even though it has a limit set (the mount default).

AFAICS the only place that clears DQ_FAKE_B is the setquota path, so I
take it that means the dquot becomes ultimately unreclaimable if/when
the user sets a non-zero quota limit, and then it only becomes
reclaimable again when quota limits are explicitly set to zero. Is that
the case?

If so, a couple questions:

1. Can a dquot ever be reclaimed if the user explicitly sets a quota
limit that matches the mount default?

2. How does enforcement of default limits actually work? For example, it
looks like dquot_add_inodes() skips enforcement when DQ_FAKE_B is set.
Have I missed somewhere where this flag should be cleared in this case?

Brian

> +	/* Make sure flags update is visible after dquot has been filled */
> +	smp_mb__before_atomic();
> +	set_bit(DQ_READ_B, &dquot->dq_flags);
> +	set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
> +out_iolock:
> +	memalloc_nofs_restore(memalloc);
> +	mutex_unlock(&dquot->dq_lock);
> +	return ret;
> +}
> +
> +const struct dquot_operations shmem_dquot_operations = {
> +	.write_dquot	= dquot_commit,
> +	.acquire_dquot	= shmem_dquot_acquire,
> +	.release_dquot	= dquot_release,
> +	.mark_dirty	= dquot_mark_dquot_dirty,
> +	.write_info	= dquot_commit_info,
> +	.alloc_dquot	= dquot_alloc,
> +	.destroy_dquot	= dquot_destroy,
> +	.get_next_id	= dquot_get_next_id,
> +};
> +
>  /*
>   * We don't have any quota files to read, or write to/from, but quota code
>   * requires .quota_read and .quota_write to exist.
> @@ -288,14 +341,14 @@ static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
>  }
>  
>  
> -static int shmem_enable_quotas(struct super_block *sb)
> +static int shmem_enable_quotas(struct super_block *sb, unsigned int dquot_flags)
>  {
>  	int type, err = 0;
>  
>  	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;
>  	for (type = 0; type < SHMEM_MAXQUOTAS; type++) {
>  		err = dquot_load_quota_sb(sb, type, QFMT_MEM_ONLY,
> -					  DQUOT_USAGE_ENABLED);
> +					  dquot_flags);
>  		if (err)
>  			goto out_err;
>  	}
> @@ -3559,6 +3612,10 @@ enum shmem_param {
>  	Opt_inode32,
>  	Opt_inode64,
>  	Opt_quota,
> +	Opt_usrquota_block_hardlimit,
> +	Opt_usrquota_inode_hardlimit,
> +	Opt_grpquota_block_hardlimit,
> +	Opt_grpquota_inode_hardlimit,
>  };
>  
>  static const struct constant_table shmem_param_enums_huge[] = {
> @@ -3583,6 +3640,10 @@ const struct fs_parameter_spec shmem_fs_parameters[] = {
>  	fsparam_flag  ("quota",		Opt_quota),
>  	fsparam_flag  ("usrquota",	Opt_quota),
>  	fsparam_flag  ("grpquota",	Opt_quota),
> +	fsparam_string("usrquota_block_hardlimit",	Opt_usrquota_block_hardlimit),
> +	fsparam_string("usrquota_inode_hardlimit",	Opt_usrquota_inode_hardlimit),
> +	fsparam_string("grpquota_block_hardlimit",	Opt_grpquota_block_hardlimit),
> +	fsparam_string("grpquota_inode_hardlimit",	Opt_grpquota_inode_hardlimit),
>  	{}
>  };
>  
> @@ -3666,13 +3727,60 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
>  		ctx->full_inums = true;
>  		ctx->seen |= SHMEM_SEEN_INUMS;
>  		break;
> -	case Opt_quota:
>  #ifdef CONFIG_QUOTA
> +	case Opt_quota:
> +		ctx->seen |= SHMEM_SEEN_QUOTA;
> +		break;
> +	case Opt_usrquota_block_hardlimit:
> +		size = memparse(param->string, &rest);
> +		if (*rest || !size)
> +			goto bad_value;
> +		size = DIV_ROUND_UP(size, PAGE_SIZE);
> +		if (size > ULONG_MAX)
> +			return invalfc(fc,
> +				       "User quota block hardlimit too large.");
> +		ctx->usrquota_block_hardlimit = size;
> +		ctx->seen |=  SHMEM_SEEN_QUOTA;
> +		break;
> +	case Opt_grpquota_block_hardlimit:
> +		size = memparse(param->string, &rest);
> +		if (*rest || !size)
> +			goto bad_value;
> +		size = DIV_ROUND_UP(size, PAGE_SIZE);
> +		if (size > ULONG_MAX)
> +			return invalfc(fc,
> +				       "Group quota block hardlimit too large.");
> +		ctx->grpquota_block_hardlimit = size;
> +		ctx->seen |= SHMEM_SEEN_QUOTA;
> +		break;
> +	case Opt_usrquota_inode_hardlimit:
> +		size = memparse(param->string, &rest);
> +		if (*rest || !size)
> +			goto bad_value;
> +		if (size > ULONG_MAX)
> +			return invalfc(fc,
> +				       "User quota inode hardlimit too large.");
> +		ctx->usrquota_inode_hardlimit = size;
> +		ctx->seen |= SHMEM_SEEN_QUOTA;
> +		break;
> +	case Opt_grpquota_inode_hardlimit:
> +		size = memparse(param->string, &rest);
> +		if (*rest || !size)
> +			goto bad_value;
> +		if (size > ULONG_MAX)
> +			return invalfc(fc,
> +				       "Group quota inode hardlimit too large.");
> +		ctx->grpquota_inode_hardlimit = size;
>  		ctx->seen |= SHMEM_SEEN_QUOTA;
> +		break;
>  #else
> +	case Opt_quota:
> +	case Opt_usrquota_block_hardlimit:
> +	case Opt_grpquota_block_hardlimit:
> +	case Opt_usrquota_inode_hardlimit:
> +	case Opt_grpquota_inode_hardlimit:
>  		goto unsupported_parameter;
>  #endif
> -		break;
>  	}
>  	return 0;
>  
> @@ -3778,6 +3886,18 @@ static int shmem_reconfigure(struct fs_context *fc)
>  		goto out;
>  	}
>  
> +#ifdef CONFIG_QUOTA
> +#define CHANGED_LIMIT(name)						\
> +	(ctx->name## _hardlimit &&					\
> +	(ctx->name## _hardlimit != sbinfo->name## _hardlimit))
> +
> +	if (CHANGED_LIMIT(usrquota_block) || CHANGED_LIMIT(usrquota_inode) ||
> +	    CHANGED_LIMIT(grpquota_block) || CHANGED_LIMIT(grpquota_inode)) {
> +		err = "Cannot change global quota limit on remount";
> +		goto out;
> +	}
> +#endif /* CONFIG_QUOTA */
> +
>  	if (ctx->seen & SHMEM_SEEN_HUGE)
>  		sbinfo->huge = ctx->huge;
>  	if (ctx->seen & SHMEM_SEEN_INUMS)
> @@ -3942,11 +4062,22 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
>  
>  #ifdef SHMEM_QUOTA_TMPFS
>  	if (ctx->seen & SHMEM_SEEN_QUOTA) {
> -		sb->dq_op = &dquot_operations;
> +		unsigned int dquot_flags;
> +
> +		sb->dq_op = &shmem_dquot_operations;
>  		sb->s_qcop = &dquot_quotactl_sysfile_ops;
>  		sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
>  
> -		if (shmem_enable_quotas(sb))
> +		dquot_flags = DQUOT_USAGE_ENABLED;
> +		/*
> +		 * If any of the global quota limits are set, enable
> +		 * quota enforcement
> +		 */
> +		if (ctx->usrquota_block_hardlimit || ctx->usrquota_inode_hardlimit ||
> +		    ctx->grpquota_block_hardlimit || ctx->grpquota_inode_hardlimit)
> +			dquot_flags |= DQUOT_LIMITS_ENABLED;
> +
> +		if (shmem_enable_quotas(sb, dquot_flags))
>  			goto failed;
>  	}
>  #endif  /* SHMEM_QUOTA_TMPFS */
> @@ -3960,6 +4091,17 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
>  	if (!sb->s_root)
>  		goto failed;
>  
> +#ifdef SHMEM_QUOTA_TMPFS
> +	/*
> +	 * Set quota hard limits after shmem_get_inode() to avoid setting
> +	 * it for root
> +	 */
> +	sbinfo->usrquota_block_hardlimit = ctx->usrquota_block_hardlimit;
> +	sbinfo->usrquota_inode_hardlimit = ctx->usrquota_inode_hardlimit;
> +	sbinfo->grpquota_block_hardlimit = ctx->grpquota_block_hardlimit;
> +	sbinfo->grpquota_inode_hardlimit = ctx->grpquota_inode_hardlimit;
> +#endif  /* SHMEM_QUOTA_TMPFS */
> +
>  	return 0;
>  
>  failed:
> -- 
> 2.38.1
> 
> 

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Christoph Hellwig]

On Tue, Nov 22, 2022 at 03:21:17PM +0100, Lukas Czerner wrote:
> > That seems like a good idea for memory usage, but I think this might
> > also make the code much simpler, as that just requires fairly trivial
> > quota_read and quota_write methods in the shmem code instead of new
> > support for an in-memory quota file.
> 
> You mean like the implementation in the v1 ?

Having now found it: yes.

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Lukas Czerner]

On Tue, Nov 22, 2022 at 11:58:33PM -0800, Christoph Hellwig wrote:
> On Tue, Nov 22, 2022 at 03:21:17PM +0100, Lukas Czerner wrote:
> > > That seems like a good idea for memory usage, but I think this might
> > > also make the code much simpler, as that just requires fairly trivial
> > > quota_read and quota_write methods in the shmem code instead of new
> > > support for an in-memory quota file.
> > 
> > You mean like the implementation in the v1 ?
> 
> Having now found it: yes.
> 

Jan,

do you have any argument for this, since it was your suggestion?

I also think that the implementation is much simpler with in-memory
dquots because we will avoid all the hassle with creating and
maintaining quota file in a proper format. It's not just reads and
writes it's the entire machinery befind it in quota_v2.c and quota_tree.c.

But it is true that even with only user modified dquots being
non-reclaimable until unmount it could theoreticaly represent a
substantial memory consumption. Although I do wonder if this problem
is even real. How many user/group ids would you expect extremely heavy
quota user would have the limits set for? 1k, 10k, million, or even
more? Do you know?

-Lukas

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Lukas Czerner]

On Tue, Nov 22, 2022 at 03:57:57PM -0500, Brian Foster wrote:
> On Mon, Nov 21, 2022 at 03:28:53PM +0100, Lukas Czerner wrote:
> > Implement user and group quota support for tmpfs using system quota file
> > in vfsv0 quota format. Because everything in tmpfs is temporary and as a
> > result is lost on umount, the quota files are initialized on every
> > mount. This also goes for quota limits, that needs to be set up after
> > every mount.
> > 
> > The quota support in tmpfs is well separated from the rest of the
> > filesystem and is only enabled using mount option -o quota (and
> > usrquota and grpquota for compatibility reasons). Only quota accounting
> > is enabled this way, enforcement needs to be enable by regular quota
> > tools (using Q_QUOTAON ioctl).
> > 

Hi Brian,

thanks for the review.

> 
> FWIW, just from a first look through, it seems like this could be made a
> little easier to review by splitting it up into a few smaller patches.
> For example, could the accounting and enforcement support split into
> separate patches?

Maybe a little, it seems a bit pointless to me.

> 
> A few more random notes/questions...
> 
> > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > ---
> > v2: Use the newly introduced in-memory only quota foramt QFMT_MEM_ONLY
> > 
> >  Documentation/filesystems/tmpfs.rst |  12 ++
> >  fs/quota/dquot.c                    |  10 +-
> >  include/linux/shmem_fs.h            |   3 +
> >  mm/shmem.c                          | 200 ++++++++++++++++++++++++----
> >  4 files changed, 197 insertions(+), 28 deletions(-)
> > 
> ...
> > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > index f1a7a03632a2..007604e7eb09 100644
> > --- a/fs/quota/dquot.c
> > +++ b/fs/quota/dquot.c
> > @@ -716,11 +716,11 @@ int dquot_quota_sync(struct super_block *sb, int type)
> >  	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
> >  		if (type != -1 && cnt != type)
> >  			continue;
> > -		if (!sb_has_quota_active(sb, cnt))
> > -			continue;
> > -		inode_lock(dqopt->files[cnt]);
> > -		truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> > -		inode_unlock(dqopt->files[cnt]);
> > +		if (sb_has_quota_active(sb, cnt) && dqopt->files[cnt]) {
> > +			inode_lock(dqopt->files[cnt]);
> > +			truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> > +			inode_unlock(dqopt->files[cnt]);
> > +		}
> 
> Perhaps a separate patch with some context for the change in the commit
> log? (Maybe it's obvious to others, I'm just not familiar with the core
> quota code.)

Oops, this hunk needs to be in the first patch. It is making sure that
we won't touch dquot->files[] if we don't have any quota files which is
the case for QFMT_MEM_ONLY format. I'll add some comment here.

> 
> >  	}
> >  
> >  	return 0;
> ...
> > diff --git a/mm/shmem.c b/mm/shmem.c
> > index c1d8b8a1aa3b..26f2effd8f7c 100644
> > --- a/mm/shmem.c
> > +++ b/mm/shmem.c
> ...
> > @@ -198,26 +208,34 @@ static inline void shmem_unacct_blocks(unsigned long flags, long pages)
> >  		vm_unacct_memory(pages * VM_ACCT(PAGE_SIZE));
> >  }
> >  
> > -static inline bool shmem_inode_acct_block(struct inode *inode, long pages)
> > +static inline int shmem_inode_acct_block(struct inode *inode, long pages)
> >  {
> 
> It seems like the refactoring to make this helper return an error could
> be a separate patch.

If the enforcement is done in a separate patch.

> 
> >  	struct shmem_inode_info *info = SHMEM_I(inode);
> >  	struct shmem_sb_info *sbinfo = SHMEM_SB(inode->i_sb);
> > +	int err = -ENOSPC;
> >  
> >  	if (shmem_acct_block(info->flags, pages))
> > -		return false;
> > +		return err;
> >  
> >  	if (sbinfo->max_blocks) {
> >  		if (percpu_counter_compare(&sbinfo->used_blocks,
> >  					   sbinfo->max_blocks - pages) > 0)
> >  			goto unacct;
> > +		if (dquot_alloc_block_nodirty(inode, pages)) {
> > +			err = -EDQUOT;
> > +			goto unacct;
> > +		}
> 
> It looks like the dquot_alloc_*() helper already returns -EDQUOT, FWIW,
> though it's not clear to me if you wanted to mask out other potential
> errors.

There aren't any other potential errors and I thougt this would make it
clear. I guess I was wrong, I'll change it.

> 
> >  		percpu_counter_add(&sbinfo->used_blocks, pages);
> > +	} else if (dquot_alloc_block_nodirty(inode, pages)) {
> > +		err = -EDQUOT;
> > +		goto unacct;
> >  	}
> >  
> > -	return true;
> > +	return 0;
> >  
> >  unacct:
> >  	shmem_unacct_blocks(info->flags, pages);
> > -	return false;
> > +	return err;
> >  }
> >  
> >  static inline void shmem_inode_unacct_blocks(struct inode *inode, long pages)
> ...
> > @@ -247,6 +267,62 @@ bool vma_is_shmem(struct vm_area_struct *vma)
> >  static LIST_HEAD(shmem_swaplist);
> >  static DEFINE_MUTEX(shmem_swaplist_mutex);
> >  
> > +#ifdef SHMEM_QUOTA_TMPFS
> > +
> > +#define SHMEM_MAXQUOTAS 2
> > +
> > +/*
> > + * We don't have any quota files to read, or write to/from, but quota code
> > + * requires .quota_read and .quota_write to exist.
> > + */
> > +static ssize_t shmem_quota_write(struct super_block *sb, int type,
> > +				const char *data, size_t len, loff_t off)
> > +{
> > +	return len;
> > +}
> > +
> > +static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
> > +			       size_t len, loff_t off)
> > +{
> > +	return len;
> > +}
> > +
> > +
> > +static int shmem_enable_quotas(struct super_block *sb)
> > +{
> > +	int type, err = 0;
> > +
> > +	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;
> 
> A brief comment on the flags would be helpful.

Sure, can do.

> 
> > +	for (type = 0; type < SHMEM_MAXQUOTAS; type++) {
> > +		err = dquot_load_quota_sb(sb, type, QFMT_MEM_ONLY,
> > +					  DQUOT_USAGE_ENABLED);
> > +		if (err)
> > +			goto out_err;
> > +	}
> > +	return 0;
> > +
> > +out_err:
> > +	pr_warn("tmpfs: failed to enable quota tracking (type=%d, err=%d)\n",
> > +		type, err);
> > +	for (type--; type >= 0; type--)
> > +		dquot_quota_off(sb, type);
> > +	return err;
> > +}
> > +
> > +static void shmem_disable_quotas(struct super_block *sb)
> > +{
> > +	int type;
> > +
> > +	for (type = 0; type < SHMEM_MAXQUOTAS; type++)
> > +		dquot_quota_off(sb, type);
> > +}
> > +
> > +static struct dquot **shmem_get_dquots(struct inode *inode)
> > +{
> > +	return SHMEM_I(inode)->i_dquot;
> > +}
> > +#endif /* SHMEM_QUOTA_TMPFS */
> > +
> >  /*
> >   * shmem_reserve_inode() performs bookkeeping to reserve a shmem inode, and
> >   * produces a novel ino for the newly allocated inode.
> > @@ -353,7 +429,6 @@ static void shmem_recalc_inode(struct inode *inode)
> >  	freed = info->alloced - info->swapped - inode->i_mapping->nrpages;
> >  	if (freed > 0) {
> >  		info->alloced -= freed;
> > -		inode->i_blocks -= freed * BLOCKS_PER_PAGE;
> 
> Did these various ->i_blocks updates get moved somewhere?

Yes, it is being taken care of by dquot_alloc_block_nodirty() and
dquot_free_block_nodirty() in dquot_alloc_block_nodirty() and
dquot_free_block_nodirty() respectively.

You're not the first to ask about this, I'll put that into commit
description.

> 
> >  		shmem_inode_unacct_blocks(inode, freed);
> >  	}
> >  }
> ...
> > @@ -2384,6 +2467,35 @@ static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
> >  	return inode;
> >  }
> >  
> > +static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
> > +				     umode_t mode, dev_t dev, unsigned long flags)
> > +{
> > +	int err;
> > +	struct inode *inode;
> > +
> > +	inode = shmem_get_inode_noquota(sb, dir, mode, dev, flags);
> > +	if (inode) {
> > +		err = dquot_initialize(inode);
> > +		if (err)
> > +			goto errout;
> > +
> > +		err = dquot_alloc_inode(inode);
> > +		if (err) {
> > +			dquot_drop(inode);
> > +			goto errout;
> > +		}
> > +	}
> > +	return inode;
> > +
> > +errout:
> > +	inode->i_flags |= S_NOQUOTA;
> 
> I assume this is here so the free path won't unaccount an inode from the
> quota that wasn't able to allocate, but is it needed with the
> dquot_drop() above? If so, a comment might be helpful. :)

Yes it is needed. Quota code generally expects dquot to be initialized
for operations such as dquot_free_inode(). It won't be in this case and
hece we have to avoid quota accounting.


> 
> Brian

Thanks Brian!

-Lukas
> 
> > +	iput(inode);
> > +	shmem_free_inode(sb);
> > +	if (err)
> > +		return ERR_PTR(err);
> > +	return NULL;
> > +}
> > +
> >  #ifdef CONFIG_USERFAULTFD
> >  int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
> >  			   pmd_t *dst_pmd,
> > @@ -2403,7 +2515,7 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
> >  	int ret;
> >  	pgoff_t max_off;
> >  
> > -	if (!shmem_inode_acct_block(inode, 1)) {
> > +	if (shmem_inode_acct_block(inode, 1)) {
> >  		/*
> >  		 * We may have got a page, returned -ENOENT triggering a retry,
> >  		 * and now we find ourselves with -ENOMEM. Release the page, to
> > @@ -2487,7 +2599,6 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
> >  
> >  	spin_lock_irq(&info->lock);
> >  	info->alloced++;
> > -	inode->i_blocks += BLOCKS_PER_PAGE;
> >  	shmem_recalc_inode(inode);
> >  	spin_unlock_irq(&info->lock);
> >  
> > @@ -2908,7 +3019,7 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
> >  	int error = -ENOSPC;
> >  
> >  	inode = shmem_get_inode(dir->i_sb, dir, mode, dev, VM_NORESERVE);
> > -	if (inode) {
> > +	if (!IS_ERR_OR_NULL(inode)) {
> >  		error = simple_acl_create(dir, inode);
> >  		if (error)
> >  			goto out_iput;
> > @@ -2924,7 +3035,8 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
> >  		inode_inc_iversion(dir);
> >  		d_instantiate(dentry, inode);
> >  		dget(dentry); /* Extra count - pin the dentry in core */
> > -	}
> > +	} else if (IS_ERR(inode))
> > +		error = PTR_ERR(inode);
> >  	return error;
> >  out_iput:
> >  	iput(inode);
> > @@ -2939,7 +3051,7 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
> >  	int error = -ENOSPC;
> >  
> >  	inode = shmem_get_inode(dir->i_sb, dir, mode, 0, VM_NORESERVE);
> > -	if (inode) {
> > +	if (!IS_ERR_OR_NULL(inode)) {
> >  		error = security_inode_init_security(inode, dir,
> >  						     NULL,
> >  						     shmem_initxattrs, NULL);
> > @@ -2949,7 +3061,8 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
> >  		if (error)
> >  			goto out_iput;
> >  		d_tmpfile(file, inode);
> > -	}
> > +	} else if (IS_ERR(inode))
> > +		error = PTR_ERR(inode);
> >  	return finish_open_simple(file, error);
> >  out_iput:
> >  	iput(inode);
> > @@ -3126,6 +3239,8 @@ static int shmem_symlink(struct user_namespace *mnt_userns, struct inode *dir,
> >  				VM_NORESERVE);
> >  	if (!inode)
> >  		return -ENOSPC;
> > +	else if (IS_ERR(inode))
> > +		return PTR_ERR(inode);
> >  
> >  	error = security_inode_init_security(inode, dir, &dentry->d_name,
> >  					     shmem_initxattrs, NULL);
> > @@ -3443,6 +3558,7 @@ enum shmem_param {
> >  	Opt_uid,
> >  	Opt_inode32,
> >  	Opt_inode64,
> > +	Opt_quota,
> >  };
> >  
> >  static const struct constant_table shmem_param_enums_huge[] = {
> > @@ -3464,6 +3580,9 @@ const struct fs_parameter_spec shmem_fs_parameters[] = {
> >  	fsparam_u32   ("uid",		Opt_uid),
> >  	fsparam_flag  ("inode32",	Opt_inode32),
> >  	fsparam_flag  ("inode64",	Opt_inode64),
> > +	fsparam_flag  ("quota",		Opt_quota),
> > +	fsparam_flag  ("usrquota",	Opt_quota),
> > +	fsparam_flag  ("grpquota",	Opt_quota),
> >  	{}
> >  };
> >  
> > @@ -3547,6 +3666,13 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
> >  		ctx->full_inums = true;
> >  		ctx->seen |= SHMEM_SEEN_INUMS;
> >  		break;
> > +	case Opt_quota:
> > +#ifdef CONFIG_QUOTA
> > +		ctx->seen |= SHMEM_SEEN_QUOTA;
> > +#else
> > +		goto unsupported_parameter;
> > +#endif
> > +		break;
> >  	}
> >  	return 0;
> >  
> > @@ -3646,6 +3772,12 @@ static int shmem_reconfigure(struct fs_context *fc)
> >  		goto out;
> >  	}
> >  
> > +	if (ctx->seen & SHMEM_SEEN_QUOTA &&
> > +	    !sb_any_quota_loaded(fc->root->d_sb)) {
> > +		err = "Cannot enable quota on remount";
> > +		goto out;
> > +	}
> > +
> >  	if (ctx->seen & SHMEM_SEEN_HUGE)
> >  		sbinfo->huge = ctx->huge;
> >  	if (ctx->seen & SHMEM_SEEN_INUMS)
> > @@ -3728,6 +3860,9 @@ static void shmem_put_super(struct super_block *sb)
> >  {
> >  	struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
> >  
> > +#ifdef SHMEM_QUOTA_TMPFS
> > +	shmem_disable_quotas(sb);
> > +#endif
> >  	free_percpu(sbinfo->ino_batch);
> >  	percpu_counter_destroy(&sbinfo->used_blocks);
> >  	mpol_put(sbinfo->mpol);
> > @@ -3805,14 +3940,26 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
> >  #endif
> >  	uuid_gen(&sb->s_uuid);
> >  
> > +#ifdef SHMEM_QUOTA_TMPFS
> > +	if (ctx->seen & SHMEM_SEEN_QUOTA) {
> > +		sb->dq_op = &dquot_operations;
> > +		sb->s_qcop = &dquot_quotactl_sysfile_ops;
> > +		sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
> > +
> > +		if (shmem_enable_quotas(sb))
> > +			goto failed;
> > +	}
> > +#endif  /* SHMEM_QUOTA_TMPFS */
> > +
> >  	inode = shmem_get_inode(sb, NULL, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
> > -	if (!inode)
> > +	if (IS_ERR_OR_NULL(inode))
> >  		goto failed;
> >  	inode->i_uid = sbinfo->uid;
> >  	inode->i_gid = sbinfo->gid;
> >  	sb->s_root = d_make_root(inode);
> >  	if (!sb->s_root)
> >  		goto failed;
> > +
> >  	return 0;
> >  
> >  failed:
> > @@ -3976,7 +4123,12 @@ static const struct super_operations shmem_ops = {
> >  #ifdef CONFIG_TMPFS
> >  	.statfs		= shmem_statfs,
> >  	.show_options	= shmem_show_options,
> > -#endif
> > +#ifdef CONFIG_QUOTA
> > +	.quota_read	= shmem_quota_read,
> > +	.quota_write	= shmem_quota_write,
> > +	.get_dquots	= shmem_get_dquots,
> > +#endif /* CONFIG_QUOTA */
> > +#endif /* CONFIG_TMPFS */
> >  	.evict_inode	= shmem_evict_inode,
> >  	.drop_inode	= generic_delete_inode,
> >  	.put_super	= shmem_put_super,
> > @@ -4196,8 +4348,10 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l
> >  
> >  	inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
> >  				flags);
> > -	if (unlikely(!inode)) {
> > +	if (IS_ERR_OR_NULL(inode)) {
> >  		shmem_unacct_size(flags, size);
> > +		if (IS_ERR(inode))
> > +			return (struct file *)inode;
> >  		return ERR_PTR(-ENOSPC);
> >  	}
> >  	inode->i_flags |= i_flags;
> > -- 
> > 2.38.1
> > 
> > 
> 

Re: [PATCH v2 3/3] shmem: implement mount options for global quota limits

[Lukas Czerner]

On Tue, Nov 22, 2022 at 04:03:25PM -0500, Brian Foster wrote:
> On Mon, Nov 21, 2022 at 03:28:54PM +0100, Lukas Czerner wrote:
> > Implement a set of mount options for setting glopbal quota limits on
> > tmpfs.
> > 
> > usrquota_block_hardlimit - global user quota block hard limit
> > usrquota_inode_hardlimit - global user quota inode hard limit
> > grpquota_block_hardlimit - global group quota block hard limit
> > grpquota_inode_hardlimit - global group quota inode hard limit
> > 
> > Quota limit parameters accept a suffix k, m or g for kilo, mega and giga
> > and can't be changed on remount. Default global quota limits are taking
> > effect for any and all user/group except root the first time the quota
> > entry for user/group id is being accessed - typically the first time an
> > inode with a particular id ownership is being created after the mount. In
> > other words, instead of the limits being initialized to zero, they are
> > initialized with the particular value provided with these mount options.
> > The limits can be changed for any user/group id at any time as it normally
> > can.
> > 
> > When any of the default quota limits are set, quota enforcement is enabled
> > automatically as well.
> > 
> > None of the quota related mount options can be set or changed on remount.
> > 
> > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > ---
> > v2: Rename mount option to something more sensible.
> >     Improve documentation.
> >     Check if the user provided limit isn't too large.
> > 
> >  Documentation/filesystems/tmpfs.rst |  36 +++++--
> >  include/linux/shmem_fs.h            |  10 ++
> >  mm/shmem.c                          | 162 ++++++++++++++++++++++++++--
> >  3 files changed, 190 insertions(+), 18 deletions(-)
> > 
> ...
> > diff --git a/mm/shmem.c b/mm/shmem.c
> > index 26f2effd8f7c..a66a1e4cd0cb 100644
> > --- a/mm/shmem.c
> > +++ b/mm/shmem.c
> ...
> > @@ -271,6 +273,57 @@ static DEFINE_MUTEX(shmem_swaplist_mutex);
> >  
> >  #define SHMEM_MAXQUOTAS 2
> >  
> > +int shmem_dquot_acquire(struct dquot *dquot)
> > +{
> > +	int type, ret = 0;
> > +	unsigned int memalloc;
> > +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> > +	struct shmem_sb_info *sbinfo = SHMEM_SB(dquot->dq_sb);
> > +
> > +
> > +	mutex_lock(&dquot->dq_lock);
> > +	memalloc = memalloc_nofs_save();
> > +	if (test_bit(DQ_READ_B, &dquot->dq_flags)) {
> > +		smp_mb__before_atomic();
> > +		set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
> > +		goto out_iolock;
> > +	}
> > +
> > +	type = dquot->dq_id.type;
> > +	ret = dqopt->ops[type]->read_dqblk(dquot);
> 
> So according to patch 1, this callback would alloc the quota id and set
> DQ_FAKE_B and DQ_NO_SHRINK_B on the dquot. The shrinker will skip dquots
> that are (noshrink && !fake). So as of this point the dquot would be
> reclaimable if it were ultimately freed with no other changes, right?

Right, the flags are set in read_dqblk() of quota-mem; which is
mem_read_dquot()

> 
> > +	if (ret < 0)
> > +		goto out_iolock;
> > +	/* Set the defaults */
> > +	if (type == USRQUOTA) {
> > +		dquot->dq_dqb.dqb_bhardlimit =
> > +			(sbinfo->usrquota_block_hardlimit << PAGE_SHIFT);
> > +		dquot->dq_dqb.dqb_ihardlimit = sbinfo->usrquota_inode_hardlimit;
> > +	} else if (type == GRPQUOTA) {
> > +		dquot->dq_dqb.dqb_bhardlimit =
> > +			(sbinfo->grpquota_block_hardlimit << PAGE_SHIFT);
> > +		dquot->dq_dqb.dqb_ihardlimit = sbinfo->grpquota_inode_hardlimit;
> > +	}
> 
> Then we set default limits from the mount option on the dquot. The dquot
> is still has DQ_FAKE_B, so presumably the dquot would remain reclaimable
> (once freed) even though it has a limit set (the mount default).
> 
> AFAICS the only place that clears DQ_FAKE_B is the setquota path, so I
> take it that means the dquot becomes ultimately unreclaimable if/when
> the user sets a non-zero quota limit, and then it only becomes
> reclaimable again when quota limits are explicitly set to zero. Is that
> the case?
> 
> If so, a couple questions:
> 
> 1. Can a dquot ever be reclaimed if the user explicitly sets a quota
> limit that matches the mount default?
> 
> 2. How does enforcement of default limits actually work? For example, it
> looks like dquot_add_inodes() skips enforcement when DQ_FAKE_B is set.
> Have I missed somewhere where this flag should be cleared in this case?

Sigh, you're righ. This won't work. My test script didn't catch this,
but setting DQ_FAKE_B will make the quota infrastructure think there are
no limits and just bail out of testing them.

Better solution might be to make a custom ->set_dqblk() and set
DQ_NO_SHRINK_B only if it differs from the defaults in shmem. This would
solve your question 1. as well.

I'll think about it some more and resend.

Thanks!
-Lukas

> 
> Brian
> 
> > +	/* Make sure flags update is visible after dquot has been filled */
> > +	smp_mb__before_atomic();
> > +	set_bit(DQ_READ_B, &dquot->dq_flags);
> > +	set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
> > +out_iolock:
> > +	memalloc_nofs_restore(memalloc);
> > +	mutex_unlock(&dquot->dq_lock);
> > +	return ret;
> > +}
> > +
> > +const struct dquot_operations shmem_dquot_operations = {
> > +	.write_dquot	= dquot_commit,
> > +	.acquire_dquot	= shmem_dquot_acquire,
> > +	.release_dquot	= dquot_release,
> > +	.mark_dirty	= dquot_mark_dquot_dirty,
> > +	.write_info	= dquot_commit_info,
> > +	.alloc_dquot	= dquot_alloc,
> > +	.destroy_dquot	= dquot_destroy,
> > +	.get_next_id	= dquot_get_next_id,
> > +};
> > +
> >  /*
> >   * We don't have any quota files to read, or write to/from, but quota code
> >   * requires .quota_read and .quota_write to exist.
> > @@ -288,14 +341,14 @@ static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
> >  }
> >  
> >  
> > -static int shmem_enable_quotas(struct super_block *sb)
> > +static int shmem_enable_quotas(struct super_block *sb, unsigned int dquot_flags)
> >  {
> >  	int type, err = 0;
> >  
> >  	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;
> >  	for (type = 0; type < SHMEM_MAXQUOTAS; type++) {
> >  		err = dquot_load_quota_sb(sb, type, QFMT_MEM_ONLY,
> > -					  DQUOT_USAGE_ENABLED);
> > +					  dquot_flags);
> >  		if (err)
> >  			goto out_err;
> >  	}
> > @@ -3559,6 +3612,10 @@ enum shmem_param {
> >  	Opt_inode32,
> >  	Opt_inode64,
> >  	Opt_quota,
> > +	Opt_usrquota_block_hardlimit,
> > +	Opt_usrquota_inode_hardlimit,
> > +	Opt_grpquota_block_hardlimit,
> > +	Opt_grpquota_inode_hardlimit,
> >  };
> >  
> >  static const struct constant_table shmem_param_enums_huge[] = {
> > @@ -3583,6 +3640,10 @@ const struct fs_parameter_spec shmem_fs_parameters[] = {
> >  	fsparam_flag  ("quota",		Opt_quota),
> >  	fsparam_flag  ("usrquota",	Opt_quota),
> >  	fsparam_flag  ("grpquota",	Opt_quota),
> > +	fsparam_string("usrquota_block_hardlimit",	Opt_usrquota_block_hardlimit),
> > +	fsparam_string("usrquota_inode_hardlimit",	Opt_usrquota_inode_hardlimit),
> > +	fsparam_string("grpquota_block_hardlimit",	Opt_grpquota_block_hardlimit),
> > +	fsparam_string("grpquota_inode_hardlimit",	Opt_grpquota_inode_hardlimit),
> >  	{}
> >  };
> >  
> > @@ -3666,13 +3727,60 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
> >  		ctx->full_inums = true;
> >  		ctx->seen |= SHMEM_SEEN_INUMS;
> >  		break;
> > -	case Opt_quota:
> >  #ifdef CONFIG_QUOTA
> > +	case Opt_quota:
> > +		ctx->seen |= SHMEM_SEEN_QUOTA;
> > +		break;
> > +	case Opt_usrquota_block_hardlimit:
> > +		size = memparse(param->string, &rest);
> > +		if (*rest || !size)
> > +			goto bad_value;
> > +		size = DIV_ROUND_UP(size, PAGE_SIZE);
> > +		if (size > ULONG_MAX)
> > +			return invalfc(fc,
> > +				       "User quota block hardlimit too large.");
> > +		ctx->usrquota_block_hardlimit = size;
> > +		ctx->seen |=  SHMEM_SEEN_QUOTA;
> > +		break;
> > +	case Opt_grpquota_block_hardlimit:
> > +		size = memparse(param->string, &rest);
> > +		if (*rest || !size)
> > +			goto bad_value;
> > +		size = DIV_ROUND_UP(size, PAGE_SIZE);
> > +		if (size > ULONG_MAX)
> > +			return invalfc(fc,
> > +				       "Group quota block hardlimit too large.");
> > +		ctx->grpquota_block_hardlimit = size;
> > +		ctx->seen |= SHMEM_SEEN_QUOTA;
> > +		break;
> > +	case Opt_usrquota_inode_hardlimit:
> > +		size = memparse(param->string, &rest);
> > +		if (*rest || !size)
> > +			goto bad_value;
> > +		if (size > ULONG_MAX)
> > +			return invalfc(fc,
> > +				       "User quota inode hardlimit too large.");
> > +		ctx->usrquota_inode_hardlimit = size;
> > +		ctx->seen |= SHMEM_SEEN_QUOTA;
> > +		break;
> > +	case Opt_grpquota_inode_hardlimit:
> > +		size = memparse(param->string, &rest);
> > +		if (*rest || !size)
> > +			goto bad_value;
> > +		if (size > ULONG_MAX)
> > +			return invalfc(fc,
> > +				       "Group quota inode hardlimit too large.");
> > +		ctx->grpquota_inode_hardlimit = size;
> >  		ctx->seen |= SHMEM_SEEN_QUOTA;
> > +		break;
> >  #else
> > +	case Opt_quota:
> > +	case Opt_usrquota_block_hardlimit:
> > +	case Opt_grpquota_block_hardlimit:
> > +	case Opt_usrquota_inode_hardlimit:
> > +	case Opt_grpquota_inode_hardlimit:
> >  		goto unsupported_parameter;
> >  #endif
> > -		break;
> >  	}
> >  	return 0;
> >  
> > @@ -3778,6 +3886,18 @@ static int shmem_reconfigure(struct fs_context *fc)
> >  		goto out;
> >  	}
> >  
> > +#ifdef CONFIG_QUOTA
> > +#define CHANGED_LIMIT(name)						\
> > +	(ctx->name## _hardlimit &&					\
> > +	(ctx->name## _hardlimit != sbinfo->name## _hardlimit))
> > +
> > +	if (CHANGED_LIMIT(usrquota_block) || CHANGED_LIMIT(usrquota_inode) ||
> > +	    CHANGED_LIMIT(grpquota_block) || CHANGED_LIMIT(grpquota_inode)) {
> > +		err = "Cannot change global quota limit on remount";
> > +		goto out;
> > +	}
> > +#endif /* CONFIG_QUOTA */
> > +
> >  	if (ctx->seen & SHMEM_SEEN_HUGE)
> >  		sbinfo->huge = ctx->huge;
> >  	if (ctx->seen & SHMEM_SEEN_INUMS)
> > @@ -3942,11 +4062,22 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
> >  
> >  #ifdef SHMEM_QUOTA_TMPFS
> >  	if (ctx->seen & SHMEM_SEEN_QUOTA) {
> > -		sb->dq_op = &dquot_operations;
> > +		unsigned int dquot_flags;
> > +
> > +		sb->dq_op = &shmem_dquot_operations;
> >  		sb->s_qcop = &dquot_quotactl_sysfile_ops;
> >  		sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
> >  
> > -		if (shmem_enable_quotas(sb))
> > +		dquot_flags = DQUOT_USAGE_ENABLED;
> > +		/*
> > +		 * If any of the global quota limits are set, enable
> > +		 * quota enforcement
> > +		 */
> > +		if (ctx->usrquota_block_hardlimit || ctx->usrquota_inode_hardlimit ||
> > +		    ctx->grpquota_block_hardlimit || ctx->grpquota_inode_hardlimit)
> > +			dquot_flags |= DQUOT_LIMITS_ENABLED;
> > +
> > +		if (shmem_enable_quotas(sb, dquot_flags))
> >  			goto failed;
> >  	}
> >  #endif  /* SHMEM_QUOTA_TMPFS */
> > @@ -3960,6 +4091,17 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
> >  	if (!sb->s_root)
> >  		goto failed;
> >  
> > +#ifdef SHMEM_QUOTA_TMPFS
> > +	/*
> > +	 * Set quota hard limits after shmem_get_inode() to avoid setting
> > +	 * it for root
> > +	 */
> > +	sbinfo->usrquota_block_hardlimit = ctx->usrquota_block_hardlimit;
> > +	sbinfo->usrquota_inode_hardlimit = ctx->usrquota_inode_hardlimit;
> > +	sbinfo->grpquota_block_hardlimit = ctx->grpquota_block_hardlimit;
> > +	sbinfo->grpquota_inode_hardlimit = ctx->grpquota_inode_hardlimit;
> > +#endif  /* SHMEM_QUOTA_TMPFS */
> > +
> >  	return 0;
> >  
> >  failed:
> > -- 
> > 2.38.1
> > 
> > 
> 

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Lukas Czerner]

On Tue, Nov 22, 2022 at 10:23:57AM -0500, Brian Foster wrote:
> On Tue, Nov 22, 2022 at 10:04:48AM +0100, Lukas Czerner wrote:
> > On Mon, Nov 21, 2022 at 09:48:18AM -0800, Darrick J. Wong wrote:
> > > On Mon, Nov 21, 2022 at 03:28:52PM +0100, Lukas Czerner wrote:
> > > > In memory quota format relies on quota infrastructure to store dquot
> > > > information for us. While conventional quota formats for file systems
> > > > with persistent storage can load quota information into dquot from the
> > > > storage on-demand and hence quota dquot shrinker can free any dquot that
> > > > is not currently being used, it must be avoided here. Otherwise we can
> > > > lose valuable information, user provided limits, because there is no
> > > > persistent storage to load the information from afterwards.
> > > > 
> > > > One information that in-memory quota format needs to keep track of is a
> > > > sorted list of ids for each quota type. This is done by utilizing an rb
> > > > tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> > > > 
> > > > This format can be used to support quota on file system without persistent
> > > > storage such as tmpfs.
> > > > 
> > > > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > > > ---
> > > >  fs/quota/Kconfig           |   8 ++
> > > >  fs/quota/Makefile          |   1 +
> > > >  fs/quota/dquot.c           |   3 +
> > > >  fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
> > > >  include/linux/quota.h      |   7 +-
> > > >  include/uapi/linux/quota.h |   1 +
> > > >  6 files changed, 279 insertions(+), 1 deletion(-)
> > > >  create mode 100644 fs/quota/quota_mem.c
> > > > 
> > > > diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> > > > index b59cd172b5f9..8ea9656ca37b 100644
> > > > --- a/fs/quota/Kconfig
> > > > +++ b/fs/quota/Kconfig
> > > > @@ -67,6 +67,14 @@ config QFMT_V2
> > > >  	  also supports 64-bit inode and block quota limits. If you need this
> > > >  	  functionality say Y here.
> > > >  
> > > > +config QFMT_MEM
> > > > +	tristate "Quota in-memory format support "
> > > > +	depends on QUOTA
> > > > +	help
> > > > +	  This config option enables kernel support for in-memory quota
> > > > +	  format support. Useful to support quota on file system without
> > > > +	  permanent storage. If you need this functionality say Y here.
> > > > +
> > > >  config QUOTACTL
> > > >  	bool
> > > >  	default n
> > > > diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> > > > index 9160639daffa..935be3f7b731 100644
> > > > --- a/fs/quota/Makefile
> > > > +++ b/fs/quota/Makefile
> > > > @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
> > > >  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
> > > >  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
> > > >  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> > > > +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> > > > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > > > index 0427b44bfee5..f1a7a03632a2 100644
> > > > --- a/fs/quota/dquot.c
> > > > +++ b/fs/quota/dquot.c
> > > > @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
> > > >  	spin_lock(&dq_list_lock);
> > > >  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
> > > >  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> > > > +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> > > > +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> > > > +			continue;
> > > >  		remove_dquot_hash(dquot);
> > > >  		remove_free_dquot(dquot);
> > > >  		remove_inuse(dquot);
> > > > diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> > > > new file mode 100644
> > > > index 000000000000..7d5e82122143
> > > > --- /dev/null
> > > > +++ b/fs/quota/quota_mem.c
> > > > @@ -0,0 +1,260 @@
> > > > +// SPDX-License-Identifier: GPL-2.0-only
> > > > +/*
> > > > + * In memory quota format relies on quota infrastructure to store dquot
> > > > + * information for us. While conventional quota formats for file systems
> > > > + * with persistent storage can load quota information into dquot from the
> > > > + * storage on-demand and hence quota dquot shrinker can free any dquot
> > > > + * that is not currently being used, it must be avoided here. Otherwise we
> > > > + * can lose valuable information, user provided limits, because there is
> > > > + * no persistent storage to load the information from afterwards.
> > > 
> > > Hmm.  dquots can't /ever/ be reclaimed?  struct dquot is ~256 bytes, and
> > > assuming 32-bit uids, the upper bound on dquot usage is 2^(32+8) bytes
> > > == 1TB of memory usage?  Once allocated, you'd have to reboot the whole
> > > machine to get that memory back?
> > 
> > Hi Darrick,
> > 
> > maybe there are some improvements to the documentation to be made. The
> > dquots will be freed on unmount as it would normaly. Also only dquots
> > containing actual user modified limits, so only dquots that are not
> > DQ_FAKE_B are prevented to be reclaimed by a shrinker see the condition in
> > dqcache_shrink_scan().
> > 
> > > 
> > > Would it be wise to "persist" dquot contents to a (private) tmpfs file
> > > to facilitate incore dquot reclaim?  The tmpfs file data can be paged
> > > out, or even punched if all the dquot records in that page go back to
> > > default settings.
> > 
> > The dquot will be flagged as DQ_FAKE_B once the limits are set to 0. But
> > when I think about it this pose a problem with the default quota limits
> > because that would change the limits to the defaults once the dquot is
> > reclaimed and then allocated again. This can be solved by making a
> > custom .set_dqblk().
> > 
> 
> Hi Lukas,
> 
> I'm a little confused.. does the above mean the dquot limit would have
> to be explicitly set to 0 by the admin in order to be reclaimed, even
> though that limit would be initialized to some non-zero value via the
> mount option? If so, wouldn't we want the ability to reclaim a dquot
> when the usage counts go down to zero (i.e., so the user/group/whatever
> for the dquot no longer has any tmpfs inode/block footprint), assuming
> the limit hasn't also been modified from the initial defaults?

By creating a custom ->set_dqblk() in shmem we can make sure that the
dquot is non-reclaimable (set DQ_NO_SHRINK_B) *only* if the limits have
been set by the user to anything other than the defaults (defaults being
either 0, or value specified by the mount option). Also
DQ_NO_SHRINK_B can't be set on ->dqblk_read() and the condition in
dqcache_shrink_scan() would only test DQ_NO_SHRINK_B. Does it make more
sense to you?

This is something I'd have to do for v3. Sorry for the confusion.

Thanks!
-Lukas

> 
> Brian
> 
> > Other than this problem, does this address your concern about dquot
> > reclaim?
> > 
> > Thanks!
> > -Lukas
> > 
> > > 
> > > --D
> > > 
> > > > + *
> > > > + * One information that in-memory quota format needs to keep track of is
> > > > + * a sorted list of ids for each quota type. This is done by utilizing
> > > > + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> > > > + * type.
> > > > + *
> > > > + * This format can be used to support quota on file system without persistent
> > > > + * storage such as tmpfs.
> > > > + */
> > > > +#include <linux/errno.h>
> > > > +#include <linux/fs.h>
> > > > +#include <linux/mount.h>
> > > > +#include <linux/kernel.h>
> > > > +#include <linux/init.h>
> > > > +#include <linux/module.h>
> > > > +#include <linux/slab.h>
> > > > +#include <linux/rbtree.h>
> > > > +
> > > > +#include <linux/quotaops.h>
> > > > +#include <linux/quota.h>
> > > > +
> > > > +MODULE_AUTHOR("Lukas Czerner");
> > > > +MODULE_DESCRIPTION("Quota in-memory format support");
> > > > +MODULE_LICENSE("GPL");
> > > > +
> > > > +/*
> > > > + * The following constants define the amount of time given a user
> > > > + * before the soft limits are treated as hard limits (usually resulting
> > > > + * in an allocation failure). The timer is started when the user crosses
> > > > + * their soft limit, it is reset when they go below their soft limit.
> > > > + */
> > > > +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> > > > +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> > > > +
> > > > +struct quota_id {
> > > > +	struct rb_node	node;
> > > > +	qid_t		id;
> > > > +};
> > > > +
> > > > +static int mem_check_quota_file(struct super_block *sb, int type)
> > > > +{
> > > > +	/* There is no real quota file, nothing to do */
> > > > +	return 1;
> > > > +}
> > > > +
> > > > +/*
> > > > + * There is no real quota file. Just allocate rb_root for quota ids and
> > > > + * set limits
> > > > + */
> > > > +static int mem_read_file_info(struct super_block *sb, int type)
> > > > +{
> > > > +	struct quota_info *dqopt = sb_dqopt(sb);
> > > > +	struct mem_dqinfo *info = &dqopt->info[type];
> > > > +	int ret = 0;
> > > > +
> > > > +	down_read(&dqopt->dqio_sem);
> > > > +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> > > > +		ret = -EINVAL;
> > > > +		goto out_unlock;
> > > > +	}
> > > > +
> > > > +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> > > > +	if (!info->dqi_priv) {
> > > > +		ret = -ENOMEM;
> > > > +		goto out_unlock;
> > > > +	}
> > > > +
> > > > +	/*
> > > > +	 * Used space is stored as unsigned 64-bit value in bytes but
> > > > +	 * quota core supports only signed 64-bit values so use that
> > > > +	 * as a limit
> > > > +	 */
> > > > +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> > > > +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> > > > +
> > > > +	info->dqi_bgrace = MAX_DQ_TIME;
> > > > +	info->dqi_igrace = MAX_IQ_TIME;
> > > > +	info->dqi_flags = 0;
> > > > +
> > > > +out_unlock:
> > > > +	up_read(&dqopt->dqio_sem);
> > > > +	return ret;
> > > > +}
> > > > +
> > > > +static int mem_write_file_info(struct super_block *sb, int type)
> > > > +{
> > > > +	/* There is no real quota file, nothing to do */
> > > > +	return 0;
> > > > +}
> > > > +
> > > > +/*
> > > > + * Free all the quota_id entries in the rb tree and rb_root.
> > > > + */
> > > > +static int mem_free_file_info(struct super_block *sb, int type)
> > > > +{
> > > > +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> > > > +	struct rb_root *root = info->dqi_priv;
> > > > +	struct quota_id *entry;
> > > > +	struct rb_node *node;
> > > > +
> > > > +	info->dqi_priv = NULL;
> > > > +	node = rb_first(root);
> > > > +	while (node) {
> > > > +		entry = rb_entry(node, struct quota_id, node);
> > > > +		node = rb_next(&entry->node);
> > > > +
> > > > +		rb_erase(&entry->node, root);
> > > > +		kfree(entry);
> > > > +	}
> > > > +
> > > > +	kfree(root);
> > > > +	return 0;
> > > > +}
> > > > +
> > > > +/*
> > > > + * There is no real quota file, nothing to read. Just insert the id in
> > > > + * the rb tree.
> > > > + */
> > > > +static int mem_read_dquot(struct dquot *dquot)
> > > > +{
> > > > +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> > > > +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> > > > +	struct rb_node *parent = NULL, *new_node = NULL;
> > > > +	struct quota_id *new_entry, *entry;
> > > > +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> > > > +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> > > > +	int ret = 0;
> > > > +
> > > > +	down_write(&dqopt->dqio_sem);
> > > > +
> > > > +	while (*n) {
> > > > +		parent = *n;
> > > > +		entry = rb_entry(parent, struct quota_id, node);
> > > > +
> > > > +		if (id < entry->id)
> > > > +			n = &(*n)->rb_left;
> > > > +		else if (id > entry->id)
> > > > +			n = &(*n)->rb_right;
> > > > +		else
> > > > +			goto out_unlock;
> > > > +	}
> > > > +
> > > > +	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
> > > > +	if (!new_entry) {
> > > > +		ret = -ENOMEM;
> > > > +		goto out_unlock;
> > > > +	}
> > > > +
> > > > +	new_entry->id = id;
> > > > +	new_node = &new_entry->node;
> > > > +	rb_link_node(new_node, parent, n);
> > > > +	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
> > > > +	dquot->dq_off = 1;
> > > > +	/*
> > > > +	 * Make sure dquot is never released by a shrinker because we
> > > > +	 * rely on quota infrastructure to store mem_dqblk in dquot.
> > > > +	 */
> > > > +	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
> > > > +	set_bit(DQ_FAKE_B, &dquot->dq_flags);
> > > > +
> > > > +out_unlock:
> > > > +	up_write(&dqopt->dqio_sem);
> > > > +	return ret;
> > > > +}
> > > > +
> > > > +static int mem_write_dquot(struct dquot *dquot)
> > > > +{
> > > > +	/* There is no real quota file, nothing to do */
> > > > +	return 0;
> > > > +}
> > > > +
> > > > +static int mem_release_dquot(struct dquot *dquot)
> > > > +{
> > > > +	/*
> > > > +	 * Everything is in memory only, release once we're done with
> > > > +	 * quota via mem_free_file_info().
> > > > +	 */
> > > > +	return 0;
> > > > +}
> > > > +
> > > > +static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
> > > > +{
> > > > +	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
> > > > +	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
> > > > +	qid_t id = from_kqid(&init_user_ns, *qid);
> > > > +	struct quota_info *dqopt = sb_dqopt(sb);
> > > > +	struct quota_id *entry = NULL;
> > > > +	int ret = 0;
> > > > +
> > > > +	down_read(&dqopt->dqio_sem);
> > > > +	while (node) {
> > > > +		entry = rb_entry(node, struct quota_id, node);
> > > > +
> > > > +		if (id < entry->id)
> > > > +			node = node->rb_left;
> > > > +		else if (id > entry->id)
> > > > +			node = node->rb_right;
> > > > +		else
> > > > +			goto got_next_id;
> > > > +	}
> > > > +
> > > > +	if (!entry) {
> > > > +		ret = -ENOENT;
> > > > +		goto out_unlock;
> > > > +	}
> > > > +
> > > > +	if (id > entry->id) {
> > > > +		node = rb_next(&entry->node);
> > > > +		if (!node) {
> > > > +			ret = -ENOENT;
> > > > +			goto out_unlock;
> > > > +		}
> > > > +		entry = rb_entry(node, struct quota_id, node);
> > > > +	}
> > > > +
> > > > +got_next_id:
> > > > +	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
> > > > +out_unlock:
> > > > +	up_read(&dqopt->dqio_sem);
> > > > +	return ret;
> > > > +}
> > > > +
> > > > +static const struct quota_format_ops mem_format_ops = {
> > > > +	.check_quota_file	= mem_check_quota_file,
> > > > +	.read_file_info		= mem_read_file_info,
> > > > +	.write_file_info	= mem_write_file_info,
> > > > +	.free_file_info		= mem_free_file_info,
> > > > +	.read_dqblk		= mem_read_dquot,
> > > > +	.commit_dqblk		= mem_write_dquot,
> > > > +	.release_dqblk		= mem_release_dquot,
> > > > +	.get_next_id		= mem_get_next_id,
> > > > +};
> > > > +
> > > > +static struct quota_format_type mem_quota_format = {
> > > > +	.qf_fmt_id	= QFMT_MEM_ONLY,
> > > > +	.qf_ops		= &mem_format_ops,
> > > > +	.qf_owner	= THIS_MODULE
> > > > +};
> > > > +
> > > > +static int __init init_mem_quota_format(void)
> > > > +{
> > > > +	return register_quota_format(&mem_quota_format);
> > > > +}
> > > > +
> > > > +static void __exit exit_mem_quota_format(void)
> > > > +{
> > > > +	unregister_quota_format(&mem_quota_format);
> > > > +}
> > > > +
> > > > +module_init(init_mem_quota_format);
> > > > +module_exit(exit_mem_quota_format);
> > > > diff --git a/include/linux/quota.h b/include/linux/quota.h
> > > > index fd692b4a41d5..4398e05c8b72 100644
> > > > --- a/include/linux/quota.h
> > > > +++ b/include/linux/quota.h
> > > > @@ -285,7 +285,11 @@ static inline void dqstats_dec(unsigned int type)
> > > >  #define DQ_FAKE_B	3	/* no limits only usage */
> > > >  #define DQ_READ_B	4	/* dquot was read into memory */
> > > >  #define DQ_ACTIVE_B	5	/* dquot is active (dquot_release not called) */
> > > > -#define DQ_LASTSET_B	6	/* Following 6 bits (see QIF_) are reserved\
> > > > +#define DQ_NO_SHRINK_B	6	/* modified dquot (not DQ_FAKE_B) is never to
> > > > +				 * be released by a shrinker. It should remain
> > > > +				 * in memory until quotas are being disabled on
> > > > +				 * unmount. */
> > > > +#define DQ_LASTSET_B	7	/* Following 6 bits (see QIF_) are reserved\
> > > >  				 * for the mask of entries set via SETQUOTA\
> > > >  				 * quotactl. They are set under dq_data_lock\
> > > >  				 * and the quota format handling dquot can\
> > > > @@ -536,6 +540,7 @@ struct quota_module_name {
> > > >  	{QFMT_VFS_OLD, "quota_v1"},\
> > > >  	{QFMT_VFS_V0, "quota_v2"},\
> > > >  	{QFMT_VFS_V1, "quota_v2"},\
> > > > +	{QFMT_MEM_ONLY, "quota_mem"},\
> > > >  	{0, NULL}}
> > > >  
> > > >  #endif /* _QUOTA_ */
> > > > diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
> > > > index f17c9636a859..ee9d2bad00c7 100644
> > > > --- a/include/uapi/linux/quota.h
> > > > +++ b/include/uapi/linux/quota.h
> > > > @@ -77,6 +77,7 @@
> > > >  #define	QFMT_VFS_V0 2
> > > >  #define QFMT_OCFS2 3
> > > >  #define	QFMT_VFS_V1 4
> > > > +#define	QFMT_MEM_ONLY 5
> > > >  
> > > >  /* Size of block in which space limits are passed through the quota
> > > >   * interface */
> > > > -- 
> > > > 2.38.1
> > > > 
> > > 
> > 
> > 
> 

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Brian Foster]

On Wed, Nov 23, 2022 at 10:52:27AM +0100, Lukas Czerner wrote:
> On Tue, Nov 22, 2022 at 10:23:57AM -0500, Brian Foster wrote:
> > On Tue, Nov 22, 2022 at 10:04:48AM +0100, Lukas Czerner wrote:
> > > On Mon, Nov 21, 2022 at 09:48:18AM -0800, Darrick J. Wong wrote:
> > > > On Mon, Nov 21, 2022 at 03:28:52PM +0100, Lukas Czerner wrote:
> > > > > In memory quota format relies on quota infrastructure to store dquot
> > > > > information for us. While conventional quota formats for file systems
> > > > > with persistent storage can load quota information into dquot from the
> > > > > storage on-demand and hence quota dquot shrinker can free any dquot that
> > > > > is not currently being used, it must be avoided here. Otherwise we can
> > > > > lose valuable information, user provided limits, because there is no
> > > > > persistent storage to load the information from afterwards.
> > > > > 
> > > > > One information that in-memory quota format needs to keep track of is a
> > > > > sorted list of ids for each quota type. This is done by utilizing an rb
> > > > > tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> > > > > 
> > > > > This format can be used to support quota on file system without persistent
> > > > > storage such as tmpfs.
> > > > > 
> > > > > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > > > > ---
> > > > >  fs/quota/Kconfig           |   8 ++
> > > > >  fs/quota/Makefile          |   1 +
> > > > >  fs/quota/dquot.c           |   3 +
> > > > >  fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
> > > > >  include/linux/quota.h      |   7 +-
> > > > >  include/uapi/linux/quota.h |   1 +
> > > > >  6 files changed, 279 insertions(+), 1 deletion(-)
> > > > >  create mode 100644 fs/quota/quota_mem.c
> > > > > 
> > > > > diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> > > > > index b59cd172b5f9..8ea9656ca37b 100644
> > > > > --- a/fs/quota/Kconfig
> > > > > +++ b/fs/quota/Kconfig
> > > > > @@ -67,6 +67,14 @@ config QFMT_V2
> > > > >  	  also supports 64-bit inode and block quota limits. If you need this
> > > > >  	  functionality say Y here.
> > > > >  
> > > > > +config QFMT_MEM
> > > > > +	tristate "Quota in-memory format support "
> > > > > +	depends on QUOTA
> > > > > +	help
> > > > > +	  This config option enables kernel support for in-memory quota
> > > > > +	  format support. Useful to support quota on file system without
> > > > > +	  permanent storage. If you need this functionality say Y here.
> > > > > +
> > > > >  config QUOTACTL
> > > > >  	bool
> > > > >  	default n
> > > > > diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> > > > > index 9160639daffa..935be3f7b731 100644
> > > > > --- a/fs/quota/Makefile
> > > > > +++ b/fs/quota/Makefile
> > > > > @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
> > > > >  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
> > > > >  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
> > > > >  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> > > > > +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> > > > > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > > > > index 0427b44bfee5..f1a7a03632a2 100644
> > > > > --- a/fs/quota/dquot.c
> > > > > +++ b/fs/quota/dquot.c
> > > > > @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
> > > > >  	spin_lock(&dq_list_lock);
> > > > >  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
> > > > >  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> > > > > +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> > > > > +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> > > > > +			continue;
> > > > >  		remove_dquot_hash(dquot);
> > > > >  		remove_free_dquot(dquot);
> > > > >  		remove_inuse(dquot);
> > > > > diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> > > > > new file mode 100644
> > > > > index 000000000000..7d5e82122143
> > > > > --- /dev/null
> > > > > +++ b/fs/quota/quota_mem.c
> > > > > @@ -0,0 +1,260 @@
> > > > > +// SPDX-License-Identifier: GPL-2.0-only
> > > > > +/*
> > > > > + * In memory quota format relies on quota infrastructure to store dquot
> > > > > + * information for us. While conventional quota formats for file systems
> > > > > + * with persistent storage can load quota information into dquot from the
> > > > > + * storage on-demand and hence quota dquot shrinker can free any dquot
> > > > > + * that is not currently being used, it must be avoided here. Otherwise we
> > > > > + * can lose valuable information, user provided limits, because there is
> > > > > + * no persistent storage to load the information from afterwards.
> > > > 
> > > > Hmm.  dquots can't /ever/ be reclaimed?  struct dquot is ~256 bytes, and
> > > > assuming 32-bit uids, the upper bound on dquot usage is 2^(32+8) bytes
> > > > == 1TB of memory usage?  Once allocated, you'd have to reboot the whole
> > > > machine to get that memory back?
> > > 
> > > Hi Darrick,
> > > 
> > > maybe there are some improvements to the documentation to be made. The
> > > dquots will be freed on unmount as it would normaly. Also only dquots
> > > containing actual user modified limits, so only dquots that are not
> > > DQ_FAKE_B are prevented to be reclaimed by a shrinker see the condition in
> > > dqcache_shrink_scan().
> > > 
> > > > 
> > > > Would it be wise to "persist" dquot contents to a (private) tmpfs file
> > > > to facilitate incore dquot reclaim?  The tmpfs file data can be paged
> > > > out, or even punched if all the dquot records in that page go back to
> > > > default settings.
> > > 
> > > The dquot will be flagged as DQ_FAKE_B once the limits are set to 0. But
> > > when I think about it this pose a problem with the default quota limits
> > > because that would change the limits to the defaults once the dquot is
> > > reclaimed and then allocated again. This can be solved by making a
> > > custom .set_dqblk().
> > > 
> > 
> > Hi Lukas,
> > 
> > I'm a little confused.. does the above mean the dquot limit would have
> > to be explicitly set to 0 by the admin in order to be reclaimed, even
> > though that limit would be initialized to some non-zero value via the
> > mount option? If so, wouldn't we want the ability to reclaim a dquot
> > when the usage counts go down to zero (i.e., so the user/group/whatever
> > for the dquot no longer has any tmpfs inode/block footprint), assuming
> > the limit hasn't also been modified from the initial defaults?
> 
> By creating a custom ->set_dqblk() in shmem we can make sure that the
> dquot is non-reclaimable (set DQ_NO_SHRINK_B) *only* if the limits have
> been set by the user to anything other than the defaults (defaults being
> either 0, or value specified by the mount option). Also
> DQ_NO_SHRINK_B can't be set on ->dqblk_read() and the condition in
> dqcache_shrink_scan() would only test DQ_NO_SHRINK_B. Does it make more
> sense to you?
> 

Ok. Yes, I think I get the general idea. Thanks for the info.

Brian

> This is something I'd have to do for v3. Sorry for the confusion.
> 
> Thanks!
> -Lukas
> 
> > 
> > Brian
> > 
> > > Other than this problem, does this address your concern about dquot
> > > reclaim?
> > > 
> > > Thanks!
> > > -Lukas
> > > 
> > > > 
> > > > --D
> > > > 
> > > > > + *
> > > > > + * One information that in-memory quota format needs to keep track of is
> > > > > + * a sorted list of ids for each quota type. This is done by utilizing
> > > > > + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> > > > > + * type.
> > > > > + *
> > > > > + * This format can be used to support quota on file system without persistent
> > > > > + * storage such as tmpfs.
> > > > > + */
> > > > > +#include <linux/errno.h>
> > > > > +#include <linux/fs.h>
> > > > > +#include <linux/mount.h>
> > > > > +#include <linux/kernel.h>
> > > > > +#include <linux/init.h>
> > > > > +#include <linux/module.h>
> > > > > +#include <linux/slab.h>
> > > > > +#include <linux/rbtree.h>
> > > > > +
> > > > > +#include <linux/quotaops.h>
> > > > > +#include <linux/quota.h>
> > > > > +
> > > > > +MODULE_AUTHOR("Lukas Czerner");
> > > > > +MODULE_DESCRIPTION("Quota in-memory format support");
> > > > > +MODULE_LICENSE("GPL");
> > > > > +
> > > > > +/*
> > > > > + * The following constants define the amount of time given a user
> > > > > + * before the soft limits are treated as hard limits (usually resulting
> > > > > + * in an allocation failure). The timer is started when the user crosses
> > > > > + * their soft limit, it is reset when they go below their soft limit.
> > > > > + */
> > > > > +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> > > > > +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> > > > > +
> > > > > +struct quota_id {
> > > > > +	struct rb_node	node;
> > > > > +	qid_t		id;
> > > > > +};
> > > > > +
> > > > > +static int mem_check_quota_file(struct super_block *sb, int type)
> > > > > +{
> > > > > +	/* There is no real quota file, nothing to do */
> > > > > +	return 1;
> > > > > +}
> > > > > +
> > > > > +/*
> > > > > + * There is no real quota file. Just allocate rb_root for quota ids and
> > > > > + * set limits
> > > > > + */
> > > > > +static int mem_read_file_info(struct super_block *sb, int type)
> > > > > +{
> > > > > +	struct quota_info *dqopt = sb_dqopt(sb);
> > > > > +	struct mem_dqinfo *info = &dqopt->info[type];
> > > > > +	int ret = 0;
> > > > > +
> > > > > +	down_read(&dqopt->dqio_sem);
> > > > > +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> > > > > +		ret = -EINVAL;
> > > > > +		goto out_unlock;
> > > > > +	}
> > > > > +
> > > > > +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> > > > > +	if (!info->dqi_priv) {
> > > > > +		ret = -ENOMEM;
> > > > > +		goto out_unlock;
> > > > > +	}
> > > > > +
> > > > > +	/*
> > > > > +	 * Used space is stored as unsigned 64-bit value in bytes but
> > > > > +	 * quota core supports only signed 64-bit values so use that
> > > > > +	 * as a limit
> > > > > +	 */
> > > > > +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> > > > > +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> > > > > +
> > > > > +	info->dqi_bgrace = MAX_DQ_TIME;
> > > > > +	info->dqi_igrace = MAX_IQ_TIME;
> > > > > +	info->dqi_flags = 0;
> > > > > +
> > > > > +out_unlock:
> > > > > +	up_read(&dqopt->dqio_sem);
> > > > > +	return ret;
> > > > > +}
> > > > > +
> > > > > +static int mem_write_file_info(struct super_block *sb, int type)
> > > > > +{
> > > > > +	/* There is no real quota file, nothing to do */
> > > > > +	return 0;
> > > > > +}
> > > > > +
> > > > > +/*
> > > > > + * Free all the quota_id entries in the rb tree and rb_root.
> > > > > + */
> > > > > +static int mem_free_file_info(struct super_block *sb, int type)
> > > > > +{
> > > > > +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> > > > > +	struct rb_root *root = info->dqi_priv;
> > > > > +	struct quota_id *entry;
> > > > > +	struct rb_node *node;
> > > > > +
> > > > > +	info->dqi_priv = NULL;
> > > > > +	node = rb_first(root);
> > > > > +	while (node) {
> > > > > +		entry = rb_entry(node, struct quota_id, node);
> > > > > +		node = rb_next(&entry->node);
> > > > > +
> > > > > +		rb_erase(&entry->node, root);
> > > > > +		kfree(entry);
> > > > > +	}
> > > > > +
> > > > > +	kfree(root);
> > > > > +	return 0;
> > > > > +}
> > > > > +
> > > > > +/*
> > > > > + * There is no real quota file, nothing to read. Just insert the id in
> > > > > + * the rb tree.
> > > > > + */
> > > > > +static int mem_read_dquot(struct dquot *dquot)
> > > > > +{
> > > > > +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> > > > > +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> > > > > +	struct rb_node *parent = NULL, *new_node = NULL;
> > > > > +	struct quota_id *new_entry, *entry;
> > > > > +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> > > > > +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> > > > > +	int ret = 0;
> > > > > +
> > > > > +	down_write(&dqopt->dqio_sem);
> > > > > +
> > > > > +	while (*n) {
> > > > > +		parent = *n;
> > > > > +		entry = rb_entry(parent, struct quota_id, node);
> > > > > +
> > > > > +		if (id < entry->id)
> > > > > +			n = &(*n)->rb_left;
> > > > > +		else if (id > entry->id)
> > > > > +			n = &(*n)->rb_right;
> > > > > +		else
> > > > > +			goto out_unlock;
> > > > > +	}
> > > > > +
> > > > > +	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
> > > > > +	if (!new_entry) {
> > > > > +		ret = -ENOMEM;
> > > > > +		goto out_unlock;
> > > > > +	}
> > > > > +
> > > > > +	new_entry->id = id;
> > > > > +	new_node = &new_entry->node;
> > > > > +	rb_link_node(new_node, parent, n);
> > > > > +	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
> > > > > +	dquot->dq_off = 1;
> > > > > +	/*
> > > > > +	 * Make sure dquot is never released by a shrinker because we
> > > > > +	 * rely on quota infrastructure to store mem_dqblk in dquot.
> > > > > +	 */
> > > > > +	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
> > > > > +	set_bit(DQ_FAKE_B, &dquot->dq_flags);
> > > > > +
> > > > > +out_unlock:
> > > > > +	up_write(&dqopt->dqio_sem);
> > > > > +	return ret;
> > > > > +}
> > > > > +
> > > > > +static int mem_write_dquot(struct dquot *dquot)
> > > > > +{
> > > > > +	/* There is no real quota file, nothing to do */
> > > > > +	return 0;
> > > > > +}
> > > > > +
> > > > > +static int mem_release_dquot(struct dquot *dquot)
> > > > > +{
> > > > > +	/*
> > > > > +	 * Everything is in memory only, release once we're done with
> > > > > +	 * quota via mem_free_file_info().
> > > > > +	 */
> > > > > +	return 0;
> > > > > +}
> > > > > +
> > > > > +static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
> > > > > +{
> > > > > +	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
> > > > > +	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
> > > > > +	qid_t id = from_kqid(&init_user_ns, *qid);
> > > > > +	struct quota_info *dqopt = sb_dqopt(sb);
> > > > > +	struct quota_id *entry = NULL;
> > > > > +	int ret = 0;
> > > > > +
> > > > > +	down_read(&dqopt->dqio_sem);
> > > > > +	while (node) {
> > > > > +		entry = rb_entry(node, struct quota_id, node);
> > > > > +
> > > > > +		if (id < entry->id)
> > > > > +			node = node->rb_left;
> > > > > +		else if (id > entry->id)
> > > > > +			node = node->rb_right;
> > > > > +		else
> > > > > +			goto got_next_id;
> > > > > +	}
> > > > > +
> > > > > +	if (!entry) {
> > > > > +		ret = -ENOENT;
> > > > > +		goto out_unlock;
> > > > > +	}
> > > > > +
> > > > > +	if (id > entry->id) {
> > > > > +		node = rb_next(&entry->node);
> > > > > +		if (!node) {
> > > > > +			ret = -ENOENT;
> > > > > +			goto out_unlock;
> > > > > +		}
> > > > > +		entry = rb_entry(node, struct quota_id, node);
> > > > > +	}
> > > > > +
> > > > > +got_next_id:
> > > > > +	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
> > > > > +out_unlock:
> > > > > +	up_read(&dqopt->dqio_sem);
> > > > > +	return ret;
> > > > > +}
> > > > > +
> > > > > +static const struct quota_format_ops mem_format_ops = {
> > > > > +	.check_quota_file	= mem_check_quota_file,
> > > > > +	.read_file_info		= mem_read_file_info,
> > > > > +	.write_file_info	= mem_write_file_info,
> > > > > +	.free_file_info		= mem_free_file_info,
> > > > > +	.read_dqblk		= mem_read_dquot,
> > > > > +	.commit_dqblk		= mem_write_dquot,
> > > > > +	.release_dqblk		= mem_release_dquot,
> > > > > +	.get_next_id		= mem_get_next_id,
> > > > > +};
> > > > > +
> > > > > +static struct quota_format_type mem_quota_format = {
> > > > > +	.qf_fmt_id	= QFMT_MEM_ONLY,
> > > > > +	.qf_ops		= &mem_format_ops,
> > > > > +	.qf_owner	= THIS_MODULE
> > > > > +};
> > > > > +
> > > > > +static int __init init_mem_quota_format(void)
> > > > > +{
> > > > > +	return register_quota_format(&mem_quota_format);
> > > > > +}
> > > > > +
> > > > > +static void __exit exit_mem_quota_format(void)
> > > > > +{
> > > > > +	unregister_quota_format(&mem_quota_format);
> > > > > +}
> > > > > +
> > > > > +module_init(init_mem_quota_format);
> > > > > +module_exit(exit_mem_quota_format);
> > > > > diff --git a/include/linux/quota.h b/include/linux/quota.h
> > > > > index fd692b4a41d5..4398e05c8b72 100644
> > > > > --- a/include/linux/quota.h
> > > > > +++ b/include/linux/quota.h
> > > > > @@ -285,7 +285,11 @@ static inline void dqstats_dec(unsigned int type)
> > > > >  #define DQ_FAKE_B	3	/* no limits only usage */
> > > > >  #define DQ_READ_B	4	/* dquot was read into memory */
> > > > >  #define DQ_ACTIVE_B	5	/* dquot is active (dquot_release not called) */
> > > > > -#define DQ_LASTSET_B	6	/* Following 6 bits (see QIF_) are reserved\
> > > > > +#define DQ_NO_SHRINK_B	6	/* modified dquot (not DQ_FAKE_B) is never to
> > > > > +				 * be released by a shrinker. It should remain
> > > > > +				 * in memory until quotas are being disabled on
> > > > > +				 * unmount. */
> > > > > +#define DQ_LASTSET_B	7	/* Following 6 bits (see QIF_) are reserved\
> > > > >  				 * for the mask of entries set via SETQUOTA\
> > > > >  				 * quotactl. They are set under dq_data_lock\
> > > > >  				 * and the quota format handling dquot can\
> > > > > @@ -536,6 +540,7 @@ struct quota_module_name {
> > > > >  	{QFMT_VFS_OLD, "quota_v1"},\
> > > > >  	{QFMT_VFS_V0, "quota_v2"},\
> > > > >  	{QFMT_VFS_V1, "quota_v2"},\
> > > > > +	{QFMT_MEM_ONLY, "quota_mem"},\
> > > > >  	{0, NULL}}
> > > > >  
> > > > >  #endif /* _QUOTA_ */
> > > > > diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
> > > > > index f17c9636a859..ee9d2bad00c7 100644
> > > > > --- a/include/uapi/linux/quota.h
> > > > > +++ b/include/uapi/linux/quota.h
> > > > > @@ -77,6 +77,7 @@
> > > > >  #define	QFMT_VFS_V0 2
> > > > >  #define QFMT_OCFS2 3
> > > > >  #define	QFMT_VFS_V1 4
> > > > > +#define	QFMT_MEM_ONLY 5
> > > > >  
> > > > >  /* Size of block in which space limits are passed through the quota
> > > > >   * interface */
> > > > > -- 
> > > > > 2.38.1
> > > > > 
> > > > 
> > > 
> > > 
> > 
> 

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Brian Foster]

On Wed, Nov 23, 2022 at 10:01:37AM +0100, Lukas Czerner wrote:
> On Tue, Nov 22, 2022 at 03:57:57PM -0500, Brian Foster wrote:
> > On Mon, Nov 21, 2022 at 03:28:53PM +0100, Lukas Czerner wrote:
> > > Implement user and group quota support for tmpfs using system quota file
> > > in vfsv0 quota format. Because everything in tmpfs is temporary and as a
> > > result is lost on umount, the quota files are initialized on every
> > > mount. This also goes for quota limits, that needs to be set up after
> > > every mount.
> > > 
> > > The quota support in tmpfs is well separated from the rest of the
> > > filesystem and is only enabled using mount option -o quota (and
> > > usrquota and grpquota for compatibility reasons). Only quota accounting
> > > is enabled this way, enforcement needs to be enable by regular quota
> > > tools (using Q_QUOTAON ioctl).
> > > 
> 
> Hi Brian,
> 
> thanks for the review.
> 
> > 
> > FWIW, just from a first look through, it seems like this could be made a
> > little easier to review by splitting it up into a few smaller patches.
> > For example, could the accounting and enforcement support split into
> > separate patches?
> 
> Maybe a little, it seems a bit pointless to me.
> 

It seems like this is often the case for the patch author. ;)

For the reviewer (or for me at least), it's usually quite helpful to see
things broken down into the smallest possible changes. Not only does it
help a single review pass, but if you have multiple reviewers and expect
multiple review cycles, then it saves overall reviewer time not having
to revisit logic that has been acked and might not have changed since
last posted.

That being said, note that I don't know this code terribly well and so
this might be less relevant to others. In general, feel free to dismiss
any feedback from me that just doesn't make sense. :)

> > 
> > A few more random notes/questions...
> > 
> > > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > > ---
> > > v2: Use the newly introduced in-memory only quota foramt QFMT_MEM_ONLY
> > > 
> > >  Documentation/filesystems/tmpfs.rst |  12 ++
> > >  fs/quota/dquot.c                    |  10 +-
> > >  include/linux/shmem_fs.h            |   3 +
> > >  mm/shmem.c                          | 200 ++++++++++++++++++++++++----
> > >  4 files changed, 197 insertions(+), 28 deletions(-)
> > > 
> > ...
> > > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > > index f1a7a03632a2..007604e7eb09 100644
> > > --- a/fs/quota/dquot.c
> > > +++ b/fs/quota/dquot.c
> > > @@ -716,11 +716,11 @@ int dquot_quota_sync(struct super_block *sb, int type)
> > >  	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
> > >  		if (type != -1 && cnt != type)
> > >  			continue;
> > > -		if (!sb_has_quota_active(sb, cnt))
> > > -			continue;
> > > -		inode_lock(dqopt->files[cnt]);
> > > -		truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> > > -		inode_unlock(dqopt->files[cnt]);
> > > +		if (sb_has_quota_active(sb, cnt) && dqopt->files[cnt]) {
> > > +			inode_lock(dqopt->files[cnt]);
> > > +			truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> > > +			inode_unlock(dqopt->files[cnt]);
> > > +		}
> > 
> > Perhaps a separate patch with some context for the change in the commit
> > log? (Maybe it's obvious to others, I'm just not familiar with the core
> > quota code.)
> 
> Oops, this hunk needs to be in the first patch. It is making sure that
> we won't touch dquot->files[] if we don't have any quota files which is
> the case for QFMT_MEM_ONLY format. I'll add some comment here.
> 

Ok.

> > 
> > >  	}
> > >  
> > >  	return 0;
> > ...
> > > diff --git a/mm/shmem.c b/mm/shmem.c
> > > index c1d8b8a1aa3b..26f2effd8f7c 100644
> > > --- a/mm/shmem.c
> > > +++ b/mm/shmem.c
...
> > > @@ -353,7 +429,6 @@ static void shmem_recalc_inode(struct inode *inode)
> > >  	freed = info->alloced - info->swapped - inode->i_mapping->nrpages;
> > >  	if (freed > 0) {
> > >  		info->alloced -= freed;
> > > -		inode->i_blocks -= freed * BLOCKS_PER_PAGE;
> > 
> > Did these various ->i_blocks updates get moved somewhere?
> 
> Yes, it is being taken care of by dquot_alloc_block_nodirty() and
> dquot_free_block_nodirty() in dquot_alloc_block_nodirty() and
> dquot_free_block_nodirty() respectively.
> 

Ah, Ok... I assume you mean __inode_[add|sub]_bytes(), called via
__dquot_alloc_space() and friends.

> You're not the first to ask about this, I'll put that into commit
> description.
> 

Ack, thanks.

> > 
> > >  		shmem_inode_unacct_blocks(inode, freed);
> > >  	}
> > >  }
> > ...
> > > @@ -2384,6 +2467,35 @@ static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
> > >  	return inode;
> > >  }
> > >  
> > > +static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
> > > +				     umode_t mode, dev_t dev, unsigned long flags)
> > > +{
> > > +	int err;
> > > +	struct inode *inode;
> > > +
> > > +	inode = shmem_get_inode_noquota(sb, dir, mode, dev, flags);
> > > +	if (inode) {
> > > +		err = dquot_initialize(inode);
> > > +		if (err)
> > > +			goto errout;
> > > +
> > > +		err = dquot_alloc_inode(inode);
> > > +		if (err) {
> > > +			dquot_drop(inode);
> > > +			goto errout;
> > > +		}
> > > +	}
> > > +	return inode;
> > > +
> > > +errout:
> > > +	inode->i_flags |= S_NOQUOTA;
> > 
> > I assume this is here so the free path won't unaccount an inode from the
> > quota that wasn't able to allocate, but is it needed with the
> > dquot_drop() above? If so, a comment might be helpful. :)
> 
> Yes it is needed. Quota code generally expects dquot to be initialized
> for operations such as dquot_free_inode(). It won't be in this case and
> hece we have to avoid quota accounting.
> 

Ok. FWIW, it looks to me that the dquot_free_inode() path checks for and
handles the case of NULL dquots. That said, I see this pattern is used
elsewhere in such error scenarios and on a second look, it seems like
explicitly defensive logic. Particularly to prevent something else from
perhaps trying to initialize the inode again (assuming failures would be
persistent). Makes more sense now, thanks.

Brian

> 
> > 
> > Brian
> 
> Thanks Brian!
> 
> -Lukas
> > 
> > > +	iput(inode);
> > > +	shmem_free_inode(sb);
> > > +	if (err)
> > > +		return ERR_PTR(err);
> > > +	return NULL;
> > > +}
> > > +
> > >  #ifdef CONFIG_USERFAULTFD
> > >  int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
> > >  			   pmd_t *dst_pmd,
> > > @@ -2403,7 +2515,7 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
> > >  	int ret;
> > >  	pgoff_t max_off;
> > >  
> > > -	if (!shmem_inode_acct_block(inode, 1)) {
> > > +	if (shmem_inode_acct_block(inode, 1)) {
> > >  		/*
> > >  		 * We may have got a page, returned -ENOENT triggering a retry,
> > >  		 * and now we find ourselves with -ENOMEM. Release the page, to
> > > @@ -2487,7 +2599,6 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
> > >  
> > >  	spin_lock_irq(&info->lock);
> > >  	info->alloced++;
> > > -	inode->i_blocks += BLOCKS_PER_PAGE;
> > >  	shmem_recalc_inode(inode);
> > >  	spin_unlock_irq(&info->lock);
> > >  
> > > @@ -2908,7 +3019,7 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
> > >  	int error = -ENOSPC;
> > >  
> > >  	inode = shmem_get_inode(dir->i_sb, dir, mode, dev, VM_NORESERVE);
> > > -	if (inode) {
> > > +	if (!IS_ERR_OR_NULL(inode)) {
> > >  		error = simple_acl_create(dir, inode);
> > >  		if (error)
> > >  			goto out_iput;
> > > @@ -2924,7 +3035,8 @@ shmem_mknod(struct user_namespace *mnt_userns, struct inode *dir,
> > >  		inode_inc_iversion(dir);
> > >  		d_instantiate(dentry, inode);
> > >  		dget(dentry); /* Extra count - pin the dentry in core */
> > > -	}
> > > +	} else if (IS_ERR(inode))
> > > +		error = PTR_ERR(inode);
> > >  	return error;
> > >  out_iput:
> > >  	iput(inode);
> > > @@ -2939,7 +3051,7 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
> > >  	int error = -ENOSPC;
> > >  
> > >  	inode = shmem_get_inode(dir->i_sb, dir, mode, 0, VM_NORESERVE);
> > > -	if (inode) {
> > > +	if (!IS_ERR_OR_NULL(inode)) {
> > >  		error = security_inode_init_security(inode, dir,
> > >  						     NULL,
> > >  						     shmem_initxattrs, NULL);
> > > @@ -2949,7 +3061,8 @@ shmem_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
> > >  		if (error)
> > >  			goto out_iput;
> > >  		d_tmpfile(file, inode);
> > > -	}
> > > +	} else if (IS_ERR(inode))
> > > +		error = PTR_ERR(inode);
> > >  	return finish_open_simple(file, error);
> > >  out_iput:
> > >  	iput(inode);
> > > @@ -3126,6 +3239,8 @@ static int shmem_symlink(struct user_namespace *mnt_userns, struct inode *dir,
> > >  				VM_NORESERVE);
> > >  	if (!inode)
> > >  		return -ENOSPC;
> > > +	else if (IS_ERR(inode))
> > > +		return PTR_ERR(inode);
> > >  
> > >  	error = security_inode_init_security(inode, dir, &dentry->d_name,
> > >  					     shmem_initxattrs, NULL);
> > > @@ -3443,6 +3558,7 @@ enum shmem_param {
> > >  	Opt_uid,
> > >  	Opt_inode32,
> > >  	Opt_inode64,
> > > +	Opt_quota,
> > >  };
> > >  
> > >  static const struct constant_table shmem_param_enums_huge[] = {
> > > @@ -3464,6 +3580,9 @@ const struct fs_parameter_spec shmem_fs_parameters[] = {
> > >  	fsparam_u32   ("uid",		Opt_uid),
> > >  	fsparam_flag  ("inode32",	Opt_inode32),
> > >  	fsparam_flag  ("inode64",	Opt_inode64),
> > > +	fsparam_flag  ("quota",		Opt_quota),
> > > +	fsparam_flag  ("usrquota",	Opt_quota),
> > > +	fsparam_flag  ("grpquota",	Opt_quota),
> > >  	{}
> > >  };
> > >  
> > > @@ -3547,6 +3666,13 @@ static int shmem_parse_one(struct fs_context *fc, struct fs_parameter *param)
> > >  		ctx->full_inums = true;
> > >  		ctx->seen |= SHMEM_SEEN_INUMS;
> > >  		break;
> > > +	case Opt_quota:
> > > +#ifdef CONFIG_QUOTA
> > > +		ctx->seen |= SHMEM_SEEN_QUOTA;
> > > +#else
> > > +		goto unsupported_parameter;
> > > +#endif
> > > +		break;
> > >  	}
> > >  	return 0;
> > >  
> > > @@ -3646,6 +3772,12 @@ static int shmem_reconfigure(struct fs_context *fc)
> > >  		goto out;
> > >  	}
> > >  
> > > +	if (ctx->seen & SHMEM_SEEN_QUOTA &&
> > > +	    !sb_any_quota_loaded(fc->root->d_sb)) {
> > > +		err = "Cannot enable quota on remount";
> > > +		goto out;
> > > +	}
> > > +
> > >  	if (ctx->seen & SHMEM_SEEN_HUGE)
> > >  		sbinfo->huge = ctx->huge;
> > >  	if (ctx->seen & SHMEM_SEEN_INUMS)
> > > @@ -3728,6 +3860,9 @@ static void shmem_put_super(struct super_block *sb)
> > >  {
> > >  	struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
> > >  
> > > +#ifdef SHMEM_QUOTA_TMPFS
> > > +	shmem_disable_quotas(sb);
> > > +#endif
> > >  	free_percpu(sbinfo->ino_batch);
> > >  	percpu_counter_destroy(&sbinfo->used_blocks);
> > >  	mpol_put(sbinfo->mpol);
> > > @@ -3805,14 +3940,26 @@ static int shmem_fill_super(struct super_block *sb, struct fs_context *fc)
> > >  #endif
> > >  	uuid_gen(&sb->s_uuid);
> > >  
> > > +#ifdef SHMEM_QUOTA_TMPFS
> > > +	if (ctx->seen & SHMEM_SEEN_QUOTA) {
> > > +		sb->dq_op = &dquot_operations;
> > > +		sb->s_qcop = &dquot_quotactl_sysfile_ops;
> > > +		sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
> > > +
> > > +		if (shmem_enable_quotas(sb))
> > > +			goto failed;
> > > +	}
> > > +#endif  /* SHMEM_QUOTA_TMPFS */
> > > +
> > >  	inode = shmem_get_inode(sb, NULL, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE);
> > > -	if (!inode)
> > > +	if (IS_ERR_OR_NULL(inode))
> > >  		goto failed;
> > >  	inode->i_uid = sbinfo->uid;
> > >  	inode->i_gid = sbinfo->gid;
> > >  	sb->s_root = d_make_root(inode);
> > >  	if (!sb->s_root)
> > >  		goto failed;
> > > +
> > >  	return 0;
> > >  
> > >  failed:
> > > @@ -3976,7 +4123,12 @@ static const struct super_operations shmem_ops = {
> > >  #ifdef CONFIG_TMPFS
> > >  	.statfs		= shmem_statfs,
> > >  	.show_options	= shmem_show_options,
> > > -#endif
> > > +#ifdef CONFIG_QUOTA
> > > +	.quota_read	= shmem_quota_read,
> > > +	.quota_write	= shmem_quota_write,
> > > +	.get_dquots	= shmem_get_dquots,
> > > +#endif /* CONFIG_QUOTA */
> > > +#endif /* CONFIG_TMPFS */
> > >  	.evict_inode	= shmem_evict_inode,
> > >  	.drop_inode	= generic_delete_inode,
> > >  	.put_super	= shmem_put_super,
> > > @@ -4196,8 +4348,10 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l
> > >  
> > >  	inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
> > >  				flags);
> > > -	if (unlikely(!inode)) {
> > > +	if (IS_ERR_OR_NULL(inode)) {
> > >  		shmem_unacct_size(flags, size);
> > > +		if (IS_ERR(inode))
> > > +			return (struct file *)inode;
> > >  		return ERR_PTR(-ENOSPC);
> > >  	}
> > >  	inode->i_flags |= i_flags;
> > > -- 
> > > 2.38.1
> > > 
> > > 
> > 
> 

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Brian Foster]

On Wed, Nov 23, 2022 at 09:36:15AM +0100, Lukas Czerner wrote:
> On Tue, Nov 22, 2022 at 11:58:33PM -0800, Christoph Hellwig wrote:
> > On Tue, Nov 22, 2022 at 03:21:17PM +0100, Lukas Czerner wrote:
> > > > That seems like a good idea for memory usage, but I think this might
> > > > also make the code much simpler, as that just requires fairly trivial
> > > > quota_read and quota_write methods in the shmem code instead of new
> > > > support for an in-memory quota file.
> > > 
> > > You mean like the implementation in the v1 ?
> > 
> > Having now found it: yes.
> > 
> 
> Jan,
> 
> do you have any argument for this, since it was your suggestion?
> 
> I also think that the implementation is much simpler with in-memory
> dquots because we will avoid all the hassle with creating and
> maintaining quota file in a proper format. It's not just reads and
> writes it's the entire machinery befind it in quota_v2.c and quota_tree.c.
> 
> But it is true that even with only user modified dquots being
> non-reclaimable until unmount it could theoreticaly represent a
> substantial memory consumption. Although I do wonder if this problem
> is even real. How many user/group ids would you expect extremely heavy
> quota user would have the limits set for? 1k, 10k, million, or even
> more? Do you know?
> 

I don't know this code well enough to have a strong opinion on the v1
vs. v2 approach in general, but FWIW it does seem to me that the benefit
of v1 from a memory savings perspective is perhaps overstated. AFAICT,
tmpfs already pins inodes/denties (notably larger than dquots) in-core
for the lifetime of the inode, so it's not like we'll be saving much
memory from dquots that are actually in-use. I think this dquot memory
should be limited indirectly by the max inode restriction, as well.

That means the potential wastage is measured in dquots that are no
longer referenced, but have previously had a non-default quota limit set
by the admin, right? Even with the v1 approach, I don't think it's wise
to just push such otherwise unused dquots into swap space indefinitely.

Perhaps a reasonable approach to the memory usage issue is to just cap
the number of dquots that are allowed to have custom limits on tmpfs?
E.g., to echo Lukas above.. if there was a cap of something like 512-1k
custom quota limits, would that really be a problem for quota users on
tmpfs? Other users would still be covered by the default mount-time
limits. Of course, you could always make such a cap flexible as a % of
tmpfs size, or configurable via mount option, etc. Just a thought.

Brian

> -Lukas
> 
> 

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Jan Kara]

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On Mon 21-11-22 15:28:53, Lukas Czerner wrote:
> Implement user and group quota support for tmpfs using system quota file
> in vfsv0 quota format. Because everything in tmpfs is temporary and as a
> result is lost on umount, the quota files are initialized on every
> mount. This also goes for quota limits, that needs to be set up after
> every mount.
> 
> The quota support in tmpfs is well separated from the rest of the
> filesystem and is only enabled using mount option -o quota (and
> usrquota and grpquota for compatibility reasons). Only quota accounting
> is enabled this way, enforcement needs to be enable by regular quota
> tools (using Q_QUOTAON ioctl).
> 
> Signed-off-by: Lukas Czerner <lczerner@redhat.com>

...

> diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst
> index 0408c245785e..9c4f228ef4f3 100644
> --- a/Documentation/filesystems/tmpfs.rst
> +++ b/Documentation/filesystems/tmpfs.rst
> @@ -86,6 +86,18 @@ use up all the memory on the machine; but enhances the scalability of
>  that instance in a system with many CPUs making intensive use of it.
>  
>  
> +tmpfs also supports quota with the following mount options
> +
> +========  =============================================================
> +quota     Quota accounting is enabled on the mount. Tmpfs is using
> +          hidden system quota files that are initialized on mount.
> +          Quota limits can quota enforcement can be enabled using
                          ^^^ and?

> +          standard quota tools.
> +usrquota  Same as quota option. Exists for compatibility reasons.
> +grpquota  Same as quota option. Exists for compatibility reasons.

As we discussed with V1, I'd prefer if user & group quotas could be enabled
/ disabled independently. Mostly to not differ from other filesystems
unnecessarily.

> +========  =============================================================
> +
> +
>  tmpfs has a mount option to set the NUMA memory allocation policy for
>  all files in that instance (if CONFIG_NUMA is enabled) - which can be
>  adjusted on the fly via 'mount -o remount ...'
> diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> index f1a7a03632a2..007604e7eb09 100644
> --- a/fs/quota/dquot.c
> +++ b/fs/quota/dquot.c
> @@ -716,11 +716,11 @@ int dquot_quota_sync(struct super_block *sb, int type)
>  	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
>  		if (type != -1 && cnt != type)
>  			continue;
> -		if (!sb_has_quota_active(sb, cnt))
> -			continue;
> -		inode_lock(dqopt->files[cnt]);
> -		truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> -		inode_unlock(dqopt->files[cnt]);
> +		if (sb_has_quota_active(sb, cnt) && dqopt->files[cnt]) {
> +			inode_lock(dqopt->files[cnt]);
> +			truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> +			inode_unlock(dqopt->files[cnt]);
> +		}
>  	}

No need to mess with this when you have DQUOT_QUOTA_SYS_FILE set.

> +/*
> + * We don't have any quota files to read, or write to/from, but quota code
> + * requires .quota_read and .quota_write to exist.
> + */
> +static ssize_t shmem_quota_write(struct super_block *sb, int type,
> +				const char *data, size_t len, loff_t off)
> +{
> +	return len;
> +}
> +
> +static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
> +			       size_t len, loff_t off)
> +{
> +	return len;
> +}

Instead of these functions I'd go for attached patch.

> @@ -363,7 +438,7 @@ bool shmem_charge(struct inode *inode, long pages)
>  	struct shmem_inode_info *info = SHMEM_I(inode);
>  	unsigned long flags;
>  
> -	if (!shmem_inode_acct_block(inode, pages))
> +	if (shmem_inode_acct_block(inode, pages))
>  		return false;

As Brian asked, I'd prefer to have the calling convention change as a
separate patch.

> +static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
> +				     umode_t mode, dev_t dev, unsigned long flags)
> +{
> +	int err;
> +	struct inode *inode;
> +
> +	inode = shmem_get_inode_noquota(sb, dir, mode, dev, flags);
> +	if (inode) {
> +		err = dquot_initialize(inode);
> +		if (err)
> +			goto errout;
> +
> +		err = dquot_alloc_inode(inode);
> +		if (err) {
> +			dquot_drop(inode);
> +			goto errout;
> +		}
> +	}
> +	return inode;

I'd rather make shmem_get_inode() always return ERR_PTR or inode pointer.
It's more natural convention. Also this calling convention change should
go into a separate patch.

> +
> +errout:
> +	inode->i_flags |= S_NOQUOTA;
> +	iput(inode);
> +	shmem_free_inode(sb);
> +	if (err)
> +		return ERR_PTR(err);
> +	return NULL;
> +}
> +
...

> @@ -4196,8 +4348,10 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l
>  
>  	inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
>  				flags);
> -	if (unlikely(!inode)) {
> +	if (IS_ERR_OR_NULL(inode)) {
>  		shmem_unacct_size(flags, size);
> +		if (IS_ERR(inode))
> +			return (struct file *)inode;
				^^ Uhuh. ERR_CAST()?

>  		return ERR_PTR(-ENOSPC);
>  	}
>  	inode->i_flags |= i_flags;


								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

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From 4aaf5084147c4d8fe1a0805f2a85c0a60e18a4fe Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 23 Nov 2022 16:28:12 +0100
Subject: [PATCH] quota: Check presence of quota operation structures instead
 of ->quota_read and ->quota_write callbacks

Currently we check whether superblock has ->quota_read and ->quota_write
operations to check whether filesystem supports quotas. However for
example for shmfs we will not read or write dquots so check whether
quota operations are set in the superblock instead.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/quota/dquot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 0427b44bfee5..2c0fae111920 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2365,7 +2365,7 @@ int dquot_load_quota_sb(struct super_block *sb, int type, int format_id,
 
 	if (!fmt)
 		return -ESRCH;
-	if (!sb->s_op->quota_write || !sb->s_op->quota_read ||
+	if (!sb->dq_op || !sb->s_qcop ||
 	    (type == PRJQUOTA && sb->dq_op->get_projid == NULL)) {
 		error = -EINVAL;
 		goto out_fmt;
-- 
2.35.3

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Jan Kara]

On Mon 21-11-22 15:28:52, Lukas Czerner wrote:
> In memory quota format relies on quota infrastructure to store dquot
> information for us. While conventional quota formats for file systems
> with persistent storage can load quota information into dquot from the
> storage on-demand and hence quota dquot shrinker can free any dquot that
> is not currently being used, it must be avoided here. Otherwise we can
> lose valuable information, user provided limits, because there is no
> persistent storage to load the information from afterwards.
> 
> One information that in-memory quota format needs to keep track of is a
> sorted list of ids for each quota type. This is done by utilizing an rb
> tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> 
> This format can be used to support quota on file system without persistent
> storage such as tmpfs.
> 
> Signed-off-by: Lukas Czerner <lczerner@redhat.com>

I was thinking about this somewhat and sketching some code on my computer
to make things even simpler. See suggestions below.

> diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> index 9160639daffa..935be3f7b731 100644
> --- a/fs/quota/Makefile
> +++ b/fs/quota/Makefile
> @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
>  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
>  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
>  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o

So I wouldn't go for new generic quota format. Instead I'd define &
register private quota format in mm/shmem.c like:

static struct quota_format_type shmem_quota_format = {
        .qf_fmt_id      = QFMT_SHMEM,
        .qf_ops         = &shmem_quota_format_ops,
        .qf_owner       = THIS_MODULE
};

OCFS2 already does the very same thing so you can take some inspiration
from it. Also all the ops will be private to shmem.

> diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> index 0427b44bfee5..f1a7a03632a2 100644
> --- a/fs/quota/dquot.c
> +++ b/fs/quota/dquot.c
> @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
>  	spin_lock(&dq_list_lock);
>  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
>  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> +			continue;
>  		remove_dquot_hash(dquot);
>  		remove_free_dquot(dquot);
>  		remove_inuse(dquot);

I'd leave dquot reclaim alone. See below how to avoid loosing usage
information / limits.

> diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> new file mode 100644
> index 000000000000..7d5e82122143
> --- /dev/null
> +++ b/fs/quota/quota_mem.c
> @@ -0,0 +1,260 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * In memory quota format relies on quota infrastructure to store dquot
> + * information for us. While conventional quota formats for file systems
> + * with persistent storage can load quota information into dquot from the
> + * storage on-demand and hence quota dquot shrinker can free any dquot
> + * that is not currently being used, it must be avoided here. Otherwise we
> + * can lose valuable information, user provided limits, because there is
> + * no persistent storage to load the information from afterwards.
> + *
> + * One information that in-memory quota format needs to keep track of is
> + * a sorted list of ids for each quota type. This is done by utilizing
> + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> + * type.
> + *
> + * This format can be used to support quota on file system without persistent
> + * storage such as tmpfs.
> + */
> +#include <linux/errno.h>
> +#include <linux/fs.h>
> +#include <linux/mount.h>
> +#include <linux/kernel.h>
> +#include <linux/init.h>
> +#include <linux/module.h>
> +#include <linux/slab.h>
> +#include <linux/rbtree.h>
> +
> +#include <linux/quotaops.h>
> +#include <linux/quota.h>
> +
> +MODULE_AUTHOR("Lukas Czerner");
> +MODULE_DESCRIPTION("Quota in-memory format support");
> +MODULE_LICENSE("GPL");
> +
> +/*
> + * The following constants define the amount of time given a user
> + * before the soft limits are treated as hard limits (usually resulting
> + * in an allocation failure). The timer is started when the user crosses
> + * their soft limit, it is reset when they go below their soft limit.
> + */
> +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */

These would then become shmem private defaults.

> +struct quota_id {
> +	struct rb_node	node;
> +	qid_t		id;
> +};

Instead of this I'd define:

struct shmem_dquot {
        struct rb_node node;
        qid_t id;
	qsize_t bhardlimit;
	qsize_t bsoftlimit;
	qsize_t ihardlimit;
	qsize_t isoftlimit;
};

It would be kept in rbtree like you do with quota_id but it will be also
used as ultimate "persistent" storage of quota information when dquot gets
reclaimed. We don't need to store grace times or usage information because
if there is non-zero usage, dquot is referenced from the inode and thus
cannot be reclaimed.

> +static int mem_check_quota_file(struct super_block *sb, int type)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 1;
> +}
> +
> +/*
> + * There is no real quota file. Just allocate rb_root for quota ids and
> + * set limits
> + */
> +static int mem_read_file_info(struct super_block *sb, int type)
> +{
> +	struct quota_info *dqopt = sb_dqopt(sb);
> +	struct mem_dqinfo *info = &dqopt->info[type];
> +	int ret = 0;
> +
> +	down_read(&dqopt->dqio_sem);

No need for dqio_sem here...

> +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> +		ret = -EINVAL;
> +		goto out_unlock;
> +	}

Also this check is not needed.

> +
> +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> +	if (!info->dqi_priv) {
> +		ret = -ENOMEM;
> +		goto out_unlock;
> +	}
> +
> +	/*
> +	 * Used space is stored as unsigned 64-bit value in bytes but
> +	 * quota core supports only signed 64-bit values so use that
> +	 * as a limit
> +	 */
> +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> +
> +	info->dqi_bgrace = MAX_DQ_TIME;
> +	info->dqi_igrace = MAX_IQ_TIME;
> +	info->dqi_flags = 0;
> +
> +out_unlock:
> +	up_read(&dqopt->dqio_sem);
> +	return ret;
> +}
> +
> +static int mem_write_file_info(struct super_block *sb, int type)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 0;
> +}
> +
> +/*
> + * Free all the quota_id entries in the rb tree and rb_root.
> + */
> +static int mem_free_file_info(struct super_block *sb, int type)
> +{
> +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> +	struct rb_root *root = info->dqi_priv;
> +	struct quota_id *entry;
> +	struct rb_node *node;
> +
> +	info->dqi_priv = NULL;
> +	node = rb_first(root);
> +	while (node) {
> +		entry = rb_entry(node, struct quota_id, node);
> +		node = rb_next(&entry->node);
> +
> +		rb_erase(&entry->node, root);
> +		kfree(entry);
> +	}
> +
> +	kfree(root);
> +	return 0;
> +}

These should be all ops that are needed for the quota format. So quota
format ops can be just:

static const struct quota_format_ops shmem_format_ops = {
        .check_quota_file       = shmem_check_quota_file,
        .read_file_info         = shmem_read_file_info,
        .write_file_info        = shmem_write_file_info,
        .free_file_info         = shmem_free_file_info,
};

We deal with remaining operations by diverting quota callbacks earlier in
filesystem hooks like:

static const struct dquot_operations shmem_quota_operations = {
	.acquire_dquot		= shmem_acquire_dquot,
	..release_dquot		= shmem_release_dquot,
	.alloc_dquot		= dquot_alloc,
	.destroy_dquot		= dquot_destroy,
	.write_info		= <do nothing>,
	.mark_dirty		= <do nothing>,
	.get_next_id		= shmem_get_next_id,
};

Now shmem_get_next_id() will basically do what you do in mem_get_next_id()
just you need to wrap it in sb_has_quota_active() check as
dquot_get_next_id() does.

shmem_acquire_dquot() will do what you do in mem_read_dquot(), just if we
find the id in the rbtree, we copy limits into the dquot structure.

shmem_release_dquot() will just copy current limits to the structure in the
rbtree. It can also verify there's no usage. It can also just delete the
structure from the rbtree if the limits match the default ones.

And that should be it.

> +/*
> + * There is no real quota file, nothing to read. Just insert the id in
> + * the rb tree.
> + */
> +static int mem_read_dquot(struct dquot *dquot)
> +{
> +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> +	struct rb_node *parent = NULL, *new_node = NULL;
> +	struct quota_id *new_entry, *entry;
> +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> +	int ret = 0;
> +
> +	down_write(&dqopt->dqio_sem);
> +
> +	while (*n) {
> +		parent = *n;
> +		entry = rb_entry(parent, struct quota_id, node);
> +
> +		if (id < entry->id)
> +			n = &(*n)->rb_left;
> +		else if (id > entry->id)
> +			n = &(*n)->rb_right;
> +		else
> +			goto out_unlock;
> +	}
> +
> +	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
> +	if (!new_entry) {
> +		ret = -ENOMEM;
> +		goto out_unlock;
> +	}
> +
> +	new_entry->id = id;
> +	new_node = &new_entry->node;
> +	rb_link_node(new_node, parent, n);
> +	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
> +	dquot->dq_off = 1;
> +	/*
> +	 * Make sure dquot is never released by a shrinker because we
> +	 * rely on quota infrastructure to store mem_dqblk in dquot.
> +	 */
> +	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
> +	set_bit(DQ_FAKE_B, &dquot->dq_flags);
> +
> +out_unlock:
> +	up_write(&dqopt->dqio_sem);
> +	return ret;
> +}
> +
> +static int mem_write_dquot(struct dquot *dquot)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 0;
> +}
> +
...

> +static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
> +{
> +	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
> +	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
> +	qid_t id = from_kqid(&init_user_ns, *qid);
> +	struct quota_info *dqopt = sb_dqopt(sb);
> +	struct quota_id *entry = NULL;
> +	int ret = 0;
> +
> +	down_read(&dqopt->dqio_sem);
> +	while (node) {
> +		entry = rb_entry(node, struct quota_id, node);
> +
> +		if (id < entry->id)
> +			node = node->rb_left;
> +		else if (id > entry->id)
> +			node = node->rb_right;
> +		else
> +			goto got_next_id;
> +	}
> +
> +	if (!entry) {
> +		ret = -ENOENT;
> +		goto out_unlock;
> +	}
> +
> +	if (id > entry->id) {
> +		node = rb_next(&entry->node);
> +		if (!node) {
> +			ret = -ENOENT;
> +			goto out_unlock;
> +		}
> +		entry = rb_entry(node, struct quota_id, node);
> +	}
> +
> +got_next_id:
> +	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
> +out_unlock:
> +	up_read(&dqopt->dqio_sem);
> +	return ret;
> +}

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Darrick J. Wong]

On Wed, Nov 23, 2022 at 09:36:15AM +0100, Lukas Czerner wrote:
> On Tue, Nov 22, 2022 at 11:58:33PM -0800, Christoph Hellwig wrote:
> > On Tue, Nov 22, 2022 at 03:21:17PM +0100, Lukas Czerner wrote:
> > > > That seems like a good idea for memory usage, but I think this might
> > > > also make the code much simpler, as that just requires fairly trivial
> > > > quota_read and quota_write methods in the shmem code instead of new
> > > > support for an in-memory quota file.
> > > 
> > > You mean like the implementation in the v1 ?
> > 
> > Having now found it: yes.
> > 
> 
> Jan,
> 
> do you have any argument for this, since it was your suggestion?
> 
> I also think that the implementation is much simpler with in-memory
> dquots because we will avoid all the hassle with creating and
> maintaining quota file in a proper format. It's not just reads and
> writes it's the entire machinery befind it in quota_v2.c and quota_tree.c.
> 
> But it is true that even with only user modified dquots being
> non-reclaimable until unmount it could theoreticaly represent a
> substantial memory consumption. Although I do wonder if this problem
> is even real. How many user/group ids would you expect extremely heavy
> quota user would have the limits set for? 1k, 10k, million, or even
> more? Do you know?

The last time I checked, some of our container schedulers will heap
~1000 containers onto a single host(!!) at a time.  Assuming that a
container with a single container might map ~10 uids from the global
namespace, that's easily 10,000 at a time.  If the container runtime
only reuses global uid namespace when it runs out of namespace (i.e. it
doesn't immediately recycle them) then you could actually get up in the
millions or billions pretty easily.  The dquot counters would drop to
zero so you might still be able to reclaim the old ones, though it
sounds like you'd have to unset any per-dquot limits to get it to do
that.

That said, fsx in fstests will make all sorts of chown/chgrp calls,
which has lead to problems with the XFS quota files reaching their
maximum size (~580M per quota type) and filling up the whole fs.

--D

> -Lukas
> 

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Lukas Czerner]

On Wed, Nov 23, 2022 at 05:37:45PM +0100, Jan Kara wrote:
> On Mon 21-11-22 15:28:53, Lukas Czerner wrote:
> > Implement user and group quota support for tmpfs using system quota file
> > in vfsv0 quota format. Because everything in tmpfs is temporary and as a
> > result is lost on umount, the quota files are initialized on every
> > mount. This also goes for quota limits, that needs to be set up after
> > every mount.
> > 
> > The quota support in tmpfs is well separated from the rest of the
> > filesystem and is only enabled using mount option -o quota (and
> > usrquota and grpquota for compatibility reasons). Only quota accounting
> > is enabled this way, enforcement needs to be enable by regular quota
> > tools (using Q_QUOTAON ioctl).
> > 
> > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> 
> ...
> 
> > diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst
> > index 0408c245785e..9c4f228ef4f3 100644
> > --- a/Documentation/filesystems/tmpfs.rst
> > +++ b/Documentation/filesystems/tmpfs.rst
> > @@ -86,6 +86,18 @@ use up all the memory on the machine; but enhances the scalability of
> >  that instance in a system with many CPUs making intensive use of it.
> >  
> >  
> > +tmpfs also supports quota with the following mount options
> > +
> > +========  =============================================================
> > +quota     Quota accounting is enabled on the mount. Tmpfs is using
> > +          hidden system quota files that are initialized on mount.
> > +          Quota limits can quota enforcement can be enabled using
>                           ^^^ and?
> 
> > +          standard quota tools.
> > +usrquota  Same as quota option. Exists for compatibility reasons.
> > +grpquota  Same as quota option. Exists for compatibility reasons.
> 
> As we discussed with V1, I'd prefer if user & group quotas could be enabled
> / disabled independently. Mostly to not differ from other filesystems
> unnecessarily.

Ok, but other file systems (at least xfs and ext) differs. Mounting ext4
file system with quota feature with default quota option settings will
always enable accounting for both user and group. Mount options quota,
usrquota and grpquota enables enforcement; selectively with the last
two.

On xfs with no mount options quota is disabled. With quota, usrquota and
grpquota enforcement is enabled, again selectively with the last two.

And yes, with this implementation tmpfs is again different. The idea was
to allow enabling accounting and enforcement (with default limits)
selectively.

So how would you like the tmpfs to do it? I think having accounting only
can be useful and I'd like to keep it. Maybe adding qnoenforce,
uqnoenforce and qgnoenforce mount options, but that seems cumbersome to
me and enabling accounting by default seems a bit much. What do you think?

> 
> > +========  =============================================================
> > +
> > +
> >  tmpfs has a mount option to set the NUMA memory allocation policy for
> >  all files in that instance (if CONFIG_NUMA is enabled) - which can be
> >  adjusted on the fly via 'mount -o remount ...'
> > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > index f1a7a03632a2..007604e7eb09 100644
> > --- a/fs/quota/dquot.c
> > +++ b/fs/quota/dquot.c
> > @@ -716,11 +716,11 @@ int dquot_quota_sync(struct super_block *sb, int type)
> >  	for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
> >  		if (type != -1 && cnt != type)
> >  			continue;
> > -		if (!sb_has_quota_active(sb, cnt))
> > -			continue;
> > -		inode_lock(dqopt->files[cnt]);
> > -		truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> > -		inode_unlock(dqopt->files[cnt]);
> > +		if (sb_has_quota_active(sb, cnt) && dqopt->files[cnt]) {
> > +			inode_lock(dqopt->files[cnt]);
> > +			truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
> > +			inode_unlock(dqopt->files[cnt]);
> > +		}
> >  	}
> 
> No need to mess with this when you have DQUOT_QUOTA_SYS_FILE set.

Ah right, there is this condition earlier in the function. I'll drop it.

	if (dqopt->flags & DQUOT_QUOTA_SYS_FILE)
		return 0;

> 
> > +/*
> > + * We don't have any quota files to read, or write to/from, but quota code
> > + * requires .quota_read and .quota_write to exist.
> > + */
> > +static ssize_t shmem_quota_write(struct super_block *sb, int type,
> > +				const char *data, size_t len, loff_t off)
> > +{
> > +	return len;
> > +}
> > +
> > +static ssize_t shmem_quota_read(struct super_block *sb, int type, char *data,
> > +			       size_t len, loff_t off)
> > +{
> > +	return len;
> > +}
> 
> Instead of these functions I'd go for attached patch.

Ok, I'll take a look.

> 
> > @@ -363,7 +438,7 @@ bool shmem_charge(struct inode *inode, long pages)
> >  	struct shmem_inode_info *info = SHMEM_I(inode);
> >  	unsigned long flags;
> >  
> > -	if (!shmem_inode_acct_block(inode, pages))
> > +	if (shmem_inode_acct_block(inode, pages))
> >  		return false;
> 
> As Brian asked, I'd prefer to have the calling convention change as a
> separate patch.

Alright I'll split it up.

> 
> > +static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir,
> > +				     umode_t mode, dev_t dev, unsigned long flags)
> > +{
> > +	int err;
> > +	struct inode *inode;
> > +
> > +	inode = shmem_get_inode_noquota(sb, dir, mode, dev, flags);
> > +	if (inode) {
> > +		err = dquot_initialize(inode);
> > +		if (err)
> > +			goto errout;
> > +
> > +		err = dquot_alloc_inode(inode);
> > +		if (err) {
> > +			dquot_drop(inode);
> > +			goto errout;
> > +		}
> > +	}
> > +	return inode;
> 
> I'd rather make shmem_get_inode() always return ERR_PTR or inode pointer.
> It's more natural convention. Also this calling convention change should
> go into a separate patch.

ok.

Thanks!
-Lukas

> 
> > +
> > +errout:
> > +	inode->i_flags |= S_NOQUOTA;
> > +	iput(inode);
> > +	shmem_free_inode(sb);
> > +	if (err)
> > +		return ERR_PTR(err);
> > +	return NULL;
> > +}
> > +
> ...
> 
> > @@ -4196,8 +4348,10 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l
> >  
> >  	inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
> >  				flags);
> > -	if (unlikely(!inode)) {
> > +	if (IS_ERR_OR_NULL(inode)) {
> >  		shmem_unacct_size(flags, size);
> > +		if (IS_ERR(inode))
> > +			return (struct file *)inode;
> 				^^ Uhuh. ERR_CAST()?
> 
> >  		return ERR_PTR(-ENOSPC);
> >  	}
> >  	inode->i_flags |= i_flags;
> 
> 
> 								Honza
> -- 
> Jan Kara <jack@suse.com>
> SUSE Labs, CR

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Jan Kara]

On Fri 25-11-22 09:59:48, Lukas Czerner wrote:
> On Wed, Nov 23, 2022 at 05:37:45PM +0100, Jan Kara wrote:
> > On Mon 21-11-22 15:28:53, Lukas Czerner wrote:
> > > Implement user and group quota support for tmpfs using system quota file
> > > in vfsv0 quota format. Because everything in tmpfs is temporary and as a
> > > result is lost on umount, the quota files are initialized on every
> > > mount. This also goes for quota limits, that needs to be set up after
> > > every mount.
> > > 
> > > The quota support in tmpfs is well separated from the rest of the
> > > filesystem and is only enabled using mount option -o quota (and
> > > usrquota and grpquota for compatibility reasons). Only quota accounting
> > > is enabled this way, enforcement needs to be enable by regular quota
> > > tools (using Q_QUOTAON ioctl).
> > > 
> > > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > 
> > ...
> > 
> > > diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst
> > > index 0408c245785e..9c4f228ef4f3 100644
> > > --- a/Documentation/filesystems/tmpfs.rst
> > > +++ b/Documentation/filesystems/tmpfs.rst
> > > @@ -86,6 +86,18 @@ use up all the memory on the machine; but enhances the scalability of
> > >  that instance in a system with many CPUs making intensive use of it.
> > >  
> > >  
> > > +tmpfs also supports quota with the following mount options
> > > +
> > > +========  =============================================================
> > > +quota     Quota accounting is enabled on the mount. Tmpfs is using
> > > +          hidden system quota files that are initialized on mount.
> > > +          Quota limits can quota enforcement can be enabled using
> >                           ^^^ and?
> > 
> > > +          standard quota tools.
> > > +usrquota  Same as quota option. Exists for compatibility reasons.
> > > +grpquota  Same as quota option. Exists for compatibility reasons.
> > 
> > As we discussed with V1, I'd prefer if user & group quotas could be enabled
> > / disabled independently. Mostly to not differ from other filesystems
> > unnecessarily.
> 
> Ok, but other file systems (at least xfs and ext) differs. Mounting ext4
> file system with quota feature with default quota option settings will
> always enable accounting for both user and group. Mount options quota,
> usrquota and grpquota enables enforcement; selectively with the last
> two.
> 
> On xfs with no mount options quota is disabled. With quota, usrquota and
> grpquota enforcement is enabled, again selectively with the last two.
> 
> And yes, with this implementation tmpfs is again different. The idea was
> to allow enabling accounting and enforcement (with default limits)
> selectively.
> 
> So how would you like the tmpfs to do it? I think having accounting only
> can be useful and I'd like to keep it. Maybe adding qnoenforce,
> uqnoenforce and qgnoenforce mount options, but that seems cumbersome to
> me and enabling accounting by default seems a bit much. What do you think?

So I wanted things to be as similar to other filesystems as possible. So
quota, usrquota, grpquota would enable quota accounting & enforcement (the
last two selectively). If we want the possibility to enable accounting
without enforcement that can be done by some special mount options (and
possibly we can add them when there's user demand). Also note that there's
always the possibility to disable quota enforcement using quota tools when
needed. But IMHO 99% of users will want accounting & enforcement and thus
that should be the default like with other filesystems.

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Lukas Czerner]

On Wed, Nov 23, 2022 at 06:07:39PM +0100, Jan Kara wrote:
> On Mon 21-11-22 15:28:52, Lukas Czerner wrote:
> > In memory quota format relies on quota infrastructure to store dquot
> > information for us. While conventional quota formats for file systems
> > with persistent storage can load quota information into dquot from the
> > storage on-demand and hence quota dquot shrinker can free any dquot that
> > is not currently being used, it must be avoided here. Otherwise we can
> > lose valuable information, user provided limits, because there is no
> > persistent storage to load the information from afterwards.
> > 
> > One information that in-memory quota format needs to keep track of is a
> > sorted list of ids for each quota type. This is done by utilizing an rb
> > tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> > 
> > This format can be used to support quota on file system without persistent
> > storage such as tmpfs.
> > 
> > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> 
> I was thinking about this somewhat and sketching some code on my computer
> to make things even simpler. See suggestions below.

Thanks Honzo.

> 
> > diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> > index 9160639daffa..935be3f7b731 100644
> > --- a/fs/quota/Makefile
> > +++ b/fs/quota/Makefile
> > @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
> >  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
> >  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
> >  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> > +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> 
> So I wouldn't go for new generic quota format. Instead I'd define &
> register private quota format in mm/shmem.c like:
> 
> static struct quota_format_type shmem_quota_format = {
>         .qf_fmt_id      = QFMT_SHMEM,
>         .qf_ops         = &shmem_quota_format_ops,
>         .qf_owner       = THIS_MODULE
> };
> 
> OCFS2 already does the very same thing so you can take some inspiration
> from it. Also all the ops will be private to shmem.

Ok.

> 
> > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > index 0427b44bfee5..f1a7a03632a2 100644
> > --- a/fs/quota/dquot.c
> > +++ b/fs/quota/dquot.c
> > @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
> >  	spin_lock(&dq_list_lock);
> >  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
> >  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> > +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> > +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> > +			continue;
> >  		remove_dquot_hash(dquot);
> >  		remove_free_dquot(dquot);
> >  		remove_inuse(dquot);
> 
> I'd leave dquot reclaim alone. See below how to avoid loosing usage
> information / limits.

Yes, if the idea is to keep the version of the limits per id in shmem.c
then this won't be needed.

> 
> > diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> > new file mode 100644
> > index 000000000000..7d5e82122143
> > --- /dev/null
> > +++ b/fs/quota/quota_mem.c
> > @@ -0,0 +1,260 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * In memory quota format relies on quota infrastructure to store dquot
> > + * information for us. While conventional quota formats for file systems
> > + * with persistent storage can load quota information into dquot from the
> > + * storage on-demand and hence quota dquot shrinker can free any dquot
> > + * that is not currently being used, it must be avoided here. Otherwise we
> > + * can lose valuable information, user provided limits, because there is
> > + * no persistent storage to load the information from afterwards.
> > + *
> > + * One information that in-memory quota format needs to keep track of is
> > + * a sorted list of ids for each quota type. This is done by utilizing
> > + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> > + * type.
> > + *
> > + * This format can be used to support quota on file system without persistent
> > + * storage such as tmpfs.
> > + */
> > +#include <linux/errno.h>
> > +#include <linux/fs.h>
> > +#include <linux/mount.h>
> > +#include <linux/kernel.h>
> > +#include <linux/init.h>
> > +#include <linux/module.h>
> > +#include <linux/slab.h>
> > +#include <linux/rbtree.h>
> > +
> > +#include <linux/quotaops.h>
> > +#include <linux/quota.h>
> > +
> > +MODULE_AUTHOR("Lukas Czerner");
> > +MODULE_DESCRIPTION("Quota in-memory format support");
> > +MODULE_LICENSE("GPL");
> > +
> > +/*
> > + * The following constants define the amount of time given a user
> > + * before the soft limits are treated as hard limits (usually resulting
> > + * in an allocation failure). The timer is started when the user crosses
> > + * their soft limit, it is reset when they go below their soft limit.
> > + */
> > +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> > +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> 
> These would then become shmem private defaults.
> 
> > +struct quota_id {
> > +	struct rb_node	node;
> > +	qid_t		id;
> > +};
> 
> Instead of this I'd define:
> 
> struct shmem_dquot {
>         struct rb_node node;
>         qid_t id;
> 	qsize_t bhardlimit;
> 	qsize_t bsoftlimit;
> 	qsize_t ihardlimit;
> 	qsize_t isoftlimit;
> };
> 
> It would be kept in rbtree like you do with quota_id but it will be also
> used as ultimate "persistent" storage of quota information when dquot gets
> reclaimed. We don't need to store grace times or usage information because
> if there is non-zero usage, dquot is referenced from the inode and thus
> cannot be reclaimed.

Ok, this approach will duplicate the limits, but has advantage of having
much smaller footprint than entire dquot so in case we don't have any
usage in dquot we can safely reclaim it if needed without loosing user
provided limits. Probably a worthwhile trade-off.

Or perhaps we can eliminate the duplicity when we store it in the tree on
->destroy_dquot() and free it after we load the limits into dquot on
->acquire_dquo().

> 
> > +static int mem_check_quota_file(struct super_block *sb, int type)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 1;
> > +}
> > +
> > +/*
> > + * There is no real quota file. Just allocate rb_root for quota ids and
> > + * set limits
> > + */
> > +static int mem_read_file_info(struct super_block *sb, int type)
> > +{
> > +	struct quota_info *dqopt = sb_dqopt(sb);
> > +	struct mem_dqinfo *info = &dqopt->info[type];
> > +	int ret = 0;
> > +
> > +	down_read(&dqopt->dqio_sem);
> 
> No need for dqio_sem here...
> 
> > +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> > +		ret = -EINVAL;
> > +		goto out_unlock;
> > +	}
> 
> Also this check is not needed.
> 
> > +
> > +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> > +	if (!info->dqi_priv) {
> > +		ret = -ENOMEM;
> > +		goto out_unlock;
> > +	}
> > +
> > +	/*
> > +	 * Used space is stored as unsigned 64-bit value in bytes but
> > +	 * quota core supports only signed 64-bit values so use that
> > +	 * as a limit
> > +	 */
> > +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> > +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> > +
> > +	info->dqi_bgrace = MAX_DQ_TIME;
> > +	info->dqi_igrace = MAX_IQ_TIME;
> > +	info->dqi_flags = 0;
> > +
> > +out_unlock:
> > +	up_read(&dqopt->dqio_sem);
> > +	return ret;
> > +}
> > +
> > +static int mem_write_file_info(struct super_block *sb, int type)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 0;
> > +}
> > +
> > +/*
> > + * Free all the quota_id entries in the rb tree and rb_root.
> > + */
> > +static int mem_free_file_info(struct super_block *sb, int type)
> > +{
> > +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> > +	struct rb_root *root = info->dqi_priv;
> > +	struct quota_id *entry;
> > +	struct rb_node *node;
> > +
> > +	info->dqi_priv = NULL;
> > +	node = rb_first(root);
> > +	while (node) {
> > +		entry = rb_entry(node, struct quota_id, node);
> > +		node = rb_next(&entry->node);
> > +
> > +		rb_erase(&entry->node, root);
> > +		kfree(entry);
> > +	}
> > +
> > +	kfree(root);
> > +	return 0;
> > +}
> 
> These should be all ops that are needed for the quota format. So quota
> format ops can be just:
> 
> static const struct quota_format_ops shmem_format_ops = {
>         .check_quota_file       = shmem_check_quota_file,
>         .read_file_info         = shmem_read_file_info,
>         .write_file_info        = shmem_write_file_info,
>         .free_file_info         = shmem_free_file_info,
> };
> 
> We deal with remaining operations by diverting quota callbacks earlier in
> filesystem hooks like:
> 
> static const struct dquot_operations shmem_quota_operations = {
> 	.acquire_dquot		= shmem_acquire_dquot,
> 	..release_dquot		= shmem_release_dquot,
> 	.alloc_dquot		= dquot_alloc,
> 	.destroy_dquot		= dquot_destroy,
> 	.write_info		= <do nothing>,
> 	.mark_dirty		= <do nothing>,
> 	.get_next_id		= shmem_get_next_id,
> };
> 
> Now shmem_get_next_id() will basically do what you do in mem_get_next_id()
> just you need to wrap it in sb_has_quota_active() check as
> dquot_get_next_id() does.
> 
> shmem_acquire_dquot() will do what you do in mem_read_dquot(), just if we
> find the id in the rbtree, we copy limits into the dquot structure.
> 
> shmem_release_dquot() will just copy current limits to the structure in the
> rbtree. It can also verify there's no usage. It can also just delete the
> structure from the rbtree if the limits match the default ones.
> 
> And that should be it.

Makes sense. Thanks for the suggestions. I'll work on v3.

-Lukas

> 
> > +/*
> > + * There is no real quota file, nothing to read. Just insert the id in
> > + * the rb tree.
> > + */
> > +static int mem_read_dquot(struct dquot *dquot)
> > +{
> > +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> > +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> > +	struct rb_node *parent = NULL, *new_node = NULL;
> > +	struct quota_id *new_entry, *entry;
> > +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> > +	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
> > +	int ret = 0;
> > +
> > +	down_write(&dqopt->dqio_sem);
> > +
> > +	while (*n) {
> > +		parent = *n;
> > +		entry = rb_entry(parent, struct quota_id, node);
> > +
> > +		if (id < entry->id)
> > +			n = &(*n)->rb_left;
> > +		else if (id > entry->id)
> > +			n = &(*n)->rb_right;
> > +		else
> > +			goto out_unlock;
> > +	}
> > +
> > +	new_entry = kmalloc(sizeof(struct quota_id), GFP_NOFS);
> > +	if (!new_entry) {
> > +		ret = -ENOMEM;
> > +		goto out_unlock;
> > +	}
> > +
> > +	new_entry->id = id;
> > +	new_node = &new_entry->node;
> > +	rb_link_node(new_node, parent, n);
> > +	rb_insert_color(new_node, (struct rb_root *)info->dqi_priv);
> > +	dquot->dq_off = 1;
> > +	/*
> > +	 * Make sure dquot is never released by a shrinker because we
> > +	 * rely on quota infrastructure to store mem_dqblk in dquot.
> > +	 */
> > +	set_bit(DQ_NO_SHRINK_B, &dquot->dq_flags);
> > +	set_bit(DQ_FAKE_B, &dquot->dq_flags);
> > +
> > +out_unlock:
> > +	up_write(&dqopt->dqio_sem);
> > +	return ret;
> > +}
> > +
> > +static int mem_write_dquot(struct dquot *dquot)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 0;
> > +}
> > +
> ...
> 
> > +static int mem_get_next_id(struct super_block *sb, struct kqid *qid)
> > +{
> > +	struct mem_dqinfo *info = sb_dqinfo(sb, qid->type);
> > +	struct rb_node *node = ((struct rb_root *)info->dqi_priv)->rb_node;
> > +	qid_t id = from_kqid(&init_user_ns, *qid);
> > +	struct quota_info *dqopt = sb_dqopt(sb);
> > +	struct quota_id *entry = NULL;
> > +	int ret = 0;
> > +
> > +	down_read(&dqopt->dqio_sem);
> > +	while (node) {
> > +		entry = rb_entry(node, struct quota_id, node);
> > +
> > +		if (id < entry->id)
> > +			node = node->rb_left;
> > +		else if (id > entry->id)
> > +			node = node->rb_right;
> > +		else
> > +			goto got_next_id;
> > +	}
> > +
> > +	if (!entry) {
> > +		ret = -ENOENT;
> > +		goto out_unlock;
> > +	}
> > +
> > +	if (id > entry->id) {
> > +		node = rb_next(&entry->node);
> > +		if (!node) {
> > +			ret = -ENOENT;
> > +			goto out_unlock;
> > +		}
> > +		entry = rb_entry(node, struct quota_id, node);
> > +	}
> > +
> > +got_next_id:
> > +	*qid = make_kqid(&init_user_ns, qid->type, entry->id);
> > +out_unlock:
> > +	up_read(&dqopt->dqio_sem);
> > +	return ret;
> > +}
> 
> 								Honza
> -- 
> Jan Kara <jack@suse.com>
> SUSE Labs, CR
> 

Re: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs

[Lukas Czerner]

On Fri, Nov 25, 2022 at 10:14:53AM +0100, Jan Kara wrote:
> On Fri 25-11-22 09:59:48, Lukas Czerner wrote:
> > On Wed, Nov 23, 2022 at 05:37:45PM +0100, Jan Kara wrote:
> > > On Mon 21-11-22 15:28:53, Lukas Czerner wrote:
> > > > Implement user and group quota support for tmpfs using system quota file
> > > > in vfsv0 quota format. Because everything in tmpfs is temporary and as a
> > > > result is lost on umount, the quota files are initialized on every
> > > > mount. This also goes for quota limits, that needs to be set up after
> > > > every mount.
> > > > 
> > > > The quota support in tmpfs is well separated from the rest of the
> > > > filesystem and is only enabled using mount option -o quota (and
> > > > usrquota and grpquota for compatibility reasons). Only quota accounting
> > > > is enabled this way, enforcement needs to be enable by regular quota
> > > > tools (using Q_QUOTAON ioctl).
> > > > 
> > > > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > > 
> > > ...
> > > 
> > > > diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst
> > > > index 0408c245785e..9c4f228ef4f3 100644
> > > > --- a/Documentation/filesystems/tmpfs.rst
> > > > +++ b/Documentation/filesystems/tmpfs.rst
> > > > @@ -86,6 +86,18 @@ use up all the memory on the machine; but enhances the scalability of
> > > >  that instance in a system with many CPUs making intensive use of it.
> > > >  
> > > >  
> > > > +tmpfs also supports quota with the following mount options
> > > > +
> > > > +========  =============================================================
> > > > +quota     Quota accounting is enabled on the mount. Tmpfs is using
> > > > +          hidden system quota files that are initialized on mount.
> > > > +          Quota limits can quota enforcement can be enabled using
> > >                           ^^^ and?
> > > 
> > > > +          standard quota tools.
> > > > +usrquota  Same as quota option. Exists for compatibility reasons.
> > > > +grpquota  Same as quota option. Exists for compatibility reasons.
> > > 
> > > As we discussed with V1, I'd prefer if user & group quotas could be enabled
> > > / disabled independently. Mostly to not differ from other filesystems
> > > unnecessarily.
> > 
> > Ok, but other file systems (at least xfs and ext) differs. Mounting ext4
> > file system with quota feature with default quota option settings will
> > always enable accounting for both user and group. Mount options quota,
> > usrquota and grpquota enables enforcement; selectively with the last
> > two.
> > 
> > On xfs with no mount options quota is disabled. With quota, usrquota and
> > grpquota enforcement is enabled, again selectively with the last two.
> > 
> > And yes, with this implementation tmpfs is again different. The idea was
> > to allow enabling accounting and enforcement (with default limits)
> > selectively.
> > 
> > So how would you like the tmpfs to do it? I think having accounting only
> > can be useful and I'd like to keep it. Maybe adding qnoenforce,
> > uqnoenforce and qgnoenforce mount options, but that seems cumbersome to
> > me and enabling accounting by default seems a bit much. What do you think?
> 
> So I wanted things to be as similar to other filesystems as possible. So
> quota, usrquota, grpquota would enable quota accounting & enforcement (the
> last two selectively). If we want the possibility to enable accounting
> without enforcement that can be done by some special mount options (and
> possibly we can add them when there's user demand). Also note that there's
> always the possibility to disable quota enforcement using quota tools when
> needed. But IMHO 99% of users will want accounting & enforcement and thus
> that should be the default like with other filesystems.
> 
> 								Honza

Alright I'll do that.

Thanks!
-Lukas

> -- 
> Jan Kara <jack@suse.com>
> SUSE Labs, CR
> 

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Jan Kara]

On Fri 25-11-22 10:30:10, Lukas Czerner wrote:
> On Wed, Nov 23, 2022 at 06:07:39PM +0100, Jan Kara wrote:
> > On Mon 21-11-22 15:28:52, Lukas Czerner wrote:
> > Instead of this I'd define:
> > 
> > struct shmem_dquot {
> >         struct rb_node node;
> >         qid_t id;
> > 	qsize_t bhardlimit;
> > 	qsize_t bsoftlimit;
> > 	qsize_t ihardlimit;
> > 	qsize_t isoftlimit;
> > };
> > 
> > It would be kept in rbtree like you do with quota_id but it will be also
> > used as ultimate "persistent" storage of quota information when dquot gets
> > reclaimed. We don't need to store grace times or usage information because
> > if there is non-zero usage, dquot is referenced from the inode and thus
> > cannot be reclaimed.
> 
> Ok, this approach will duplicate the limits, but has advantage of having
> much smaller footprint than entire dquot so in case we don't have any
> usage in dquot we can safely reclaim it if needed without loosing user
> provided limits. Probably a worthwhile trade-off.
> 
> Or perhaps we can eliminate the duplicity when we store it in the tree on
> ->destroy_dquot() and free it after we load the limits into dquot on
> ->acquire_dquo().

We could but I don't think it's worth the hassle. In particular because
->release_dquot() must not fail (there's no simple way to recover from such
failure). I don't say it is impossible to overcome but just not worth the
saved memory IMHO.

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Christian Brauner]

On Mon, Nov 21, 2022 at 03:28:52PM +0100, Lukas Czerner wrote:
> In memory quota format relies on quota infrastructure to store dquot
> information for us. While conventional quota formats for file systems
> with persistent storage can load quota information into dquot from the
> storage on-demand and hence quota dquot shrinker can free any dquot that
> is not currently being used, it must be avoided here. Otherwise we can
> lose valuable information, user provided limits, because there is no
> persistent storage to load the information from afterwards.
> 
> One information that in-memory quota format needs to keep track of is a
> sorted list of ids for each quota type. This is done by utilizing an rb
> tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> 
> This format can be used to support quota on file system without persistent
> storage such as tmpfs.
> 
> Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> ---
>  fs/quota/Kconfig           |   8 ++
>  fs/quota/Makefile          |   1 +
>  fs/quota/dquot.c           |   3 +
>  fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
>  include/linux/quota.h      |   7 +-
>  include/uapi/linux/quota.h |   1 +
>  6 files changed, 279 insertions(+), 1 deletion(-)
>  create mode 100644 fs/quota/quota_mem.c
> 
> diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> index b59cd172b5f9..8ea9656ca37b 100644
> --- a/fs/quota/Kconfig
> +++ b/fs/quota/Kconfig
> @@ -67,6 +67,14 @@ config QFMT_V2
>  	  also supports 64-bit inode and block quota limits. If you need this
>  	  functionality say Y here.
>  
> +config QFMT_MEM
> +	tristate "Quota in-memory format support "
> +	depends on QUOTA
> +	help
> +	  This config option enables kernel support for in-memory quota
> +	  format support. Useful to support quota on file system without
> +	  permanent storage. If you need this functionality say Y here.
> +
>  config QUOTACTL
>  	bool
>  	default n
> diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> index 9160639daffa..935be3f7b731 100644
> --- a/fs/quota/Makefile
> +++ b/fs/quota/Makefile
> @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
>  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
>  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
>  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> index 0427b44bfee5..f1a7a03632a2 100644
> --- a/fs/quota/dquot.c
> +++ b/fs/quota/dquot.c
> @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
>  	spin_lock(&dq_list_lock);
>  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
>  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> +			continue;
>  		remove_dquot_hash(dquot);
>  		remove_free_dquot(dquot);
>  		remove_inuse(dquot);
> diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> new file mode 100644
> index 000000000000..7d5e82122143
> --- /dev/null
> +++ b/fs/quota/quota_mem.c
> @@ -0,0 +1,260 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * In memory quota format relies on quota infrastructure to store dquot
> + * information for us. While conventional quota formats for file systems
> + * with persistent storage can load quota information into dquot from the
> + * storage on-demand and hence quota dquot shrinker can free any dquot
> + * that is not currently being used, it must be avoided here. Otherwise we
> + * can lose valuable information, user provided limits, because there is
> + * no persistent storage to load the information from afterwards.
> + *
> + * One information that in-memory quota format needs to keep track of is
> + * a sorted list of ids for each quota type. This is done by utilizing
> + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> + * type.
> + *
> + * This format can be used to support quota on file system without persistent
> + * storage such as tmpfs.
> + */
> +#include <linux/errno.h>
> +#include <linux/fs.h>
> +#include <linux/mount.h>
> +#include <linux/kernel.h>
> +#include <linux/init.h>
> +#include <linux/module.h>
> +#include <linux/slab.h>
> +#include <linux/rbtree.h>
> +
> +#include <linux/quotaops.h>
> +#include <linux/quota.h>
> +
> +MODULE_AUTHOR("Lukas Czerner");
> +MODULE_DESCRIPTION("Quota in-memory format support");
> +MODULE_LICENSE("GPL");
> +
> +/*
> + * The following constants define the amount of time given a user
> + * before the soft limits are treated as hard limits (usually resulting
> + * in an allocation failure). The timer is started when the user crosses
> + * their soft limit, it is reset when they go below their soft limit.
> + */
> +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> +
> +struct quota_id {
> +	struct rb_node	node;
> +	qid_t		id;
> +};
> +
> +static int mem_check_quota_file(struct super_block *sb, int type)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 1;
> +}
> +
> +/*
> + * There is no real quota file. Just allocate rb_root for quota ids and
> + * set limits
> + */
> +static int mem_read_file_info(struct super_block *sb, int type)
> +{
> +	struct quota_info *dqopt = sb_dqopt(sb);
> +	struct mem_dqinfo *info = &dqopt->info[type];
> +	int ret = 0;
> +
> +	down_read(&dqopt->dqio_sem);
> +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> +		ret = -EINVAL;
> +		goto out_unlock;
> +	}
> +
> +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> +	if (!info->dqi_priv) {
> +		ret = -ENOMEM;
> +		goto out_unlock;
> +	}
> +
> +	/*
> +	 * Used space is stored as unsigned 64-bit value in bytes but
> +	 * quota core supports only signed 64-bit values so use that
> +	 * as a limit
> +	 */
> +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> +
> +	info->dqi_bgrace = MAX_DQ_TIME;
> +	info->dqi_igrace = MAX_IQ_TIME;
> +	info->dqi_flags = 0;
> +
> +out_unlock:
> +	up_read(&dqopt->dqio_sem);
> +	return ret;
> +}
> +
> +static int mem_write_file_info(struct super_block *sb, int type)
> +{
> +	/* There is no real quota file, nothing to do */
> +	return 0;
> +}
> +
> +/*
> + * Free all the quota_id entries in the rb tree and rb_root.
> + */
> +static int mem_free_file_info(struct super_block *sb, int type)
> +{
> +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> +	struct rb_root *root = info->dqi_priv;
> +	struct quota_id *entry;
> +	struct rb_node *node;
> +
> +	info->dqi_priv = NULL;
> +	node = rb_first(root);
> +	while (node) {
> +		entry = rb_entry(node, struct quota_id, node);
> +		node = rb_next(&entry->node);
> +
> +		rb_erase(&entry->node, root);
> +		kfree(entry);
> +	}
> +
> +	kfree(root);
> +	return 0;
> +}
> +
> +/*
> + * There is no real quota file, nothing to read. Just insert the id in
> + * the rb tree.
> + */
> +static int mem_read_dquot(struct dquot *dquot)
> +{
> +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> +	struct rb_node *parent = NULL, *new_node = NULL;
> +	struct quota_id *new_entry, *entry;
> +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);

Hey Lukas,

tmpfs instances can be mounted inside of mount namespaces owned by user
namespaces as is the case in unprivileged containers. An easy example is:

unshare --mount --user --map-root
mount -t tmpfs tmpfs /mnt

This tmpfs instances will be mounted with sb->s_user_ns set to the
userns just created during the unshare call and not to init_user_ns. So
this means that the filesystem idmapping isn't a 1:1 mapping. This needs
to be taken into account:

qid_t id = from_kqid(sb->s_user_ns, dquot->dq_id);

similar below.

But dquot_load_quota_sb() which you use in a later patch is restricted
to the init_user_ns which means that your patch as it stands is only
useable for tmpfs instances mounted in the init_user_ns.

If that's intentional then the code above is probably fine but if it's
not then you need preliminary patches to support quotas from filesystems
mountable in non-initial user namespaces.

Enabling this shouldn't be a big deal as it mostly involves updating
callsites to account for sb->s_user_ns when reading and writing quotas.
I've looked at that a while ago but there was no filesystem with quota
support that was also mountable in a user namespaces. Idmapped mounts
are already taken care of.

Re: [PATCH v2 1/3] quota: add quota in-memory format support

[Lukas Czerner]

On Tue, Nov 29, 2022 at 12:21:33PM +0100, Christian Brauner wrote:
> On Mon, Nov 21, 2022 at 03:28:52PM +0100, Lukas Czerner wrote:
> > In memory quota format relies on quota infrastructure to store dquot
> > information for us. While conventional quota formats for file systems
> > with persistent storage can load quota information into dquot from the
> > storage on-demand and hence quota dquot shrinker can free any dquot that
> > is not currently being used, it must be avoided here. Otherwise we can
> > lose valuable information, user provided limits, because there is no
> > persistent storage to load the information from afterwards.
> > 
> > One information that in-memory quota format needs to keep track of is a
> > sorted list of ids for each quota type. This is done by utilizing an rb
> > tree which root is stored in mem_dqinfo->dqi_priv for each quota type.
> > 
> > This format can be used to support quota on file system without persistent
> > storage such as tmpfs.
> > 
> > Signed-off-by: Lukas Czerner <lczerner@redhat.com>
> > ---
> >  fs/quota/Kconfig           |   8 ++
> >  fs/quota/Makefile          |   1 +
> >  fs/quota/dquot.c           |   3 +
> >  fs/quota/quota_mem.c       | 260 +++++++++++++++++++++++++++++++++++++
> >  include/linux/quota.h      |   7 +-
> >  include/uapi/linux/quota.h |   1 +
> >  6 files changed, 279 insertions(+), 1 deletion(-)
> >  create mode 100644 fs/quota/quota_mem.c
> > 
> > diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> > index b59cd172b5f9..8ea9656ca37b 100644
> > --- a/fs/quota/Kconfig
> > +++ b/fs/quota/Kconfig
> > @@ -67,6 +67,14 @@ config QFMT_V2
> >  	  also supports 64-bit inode and block quota limits. If you need this
> >  	  functionality say Y here.
> >  
> > +config QFMT_MEM
> > +	tristate "Quota in-memory format support "
> > +	depends on QUOTA
> > +	help
> > +	  This config option enables kernel support for in-memory quota
> > +	  format support. Useful to support quota on file system without
> > +	  permanent storage. If you need this functionality say Y here.
> > +
> >  config QUOTACTL
> >  	bool
> >  	default n
> > diff --git a/fs/quota/Makefile b/fs/quota/Makefile
> > index 9160639daffa..935be3f7b731 100644
> > --- a/fs/quota/Makefile
> > +++ b/fs/quota/Makefile
> > @@ -5,3 +5,4 @@ obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
> >  obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
> >  obj-$(CONFIG_QUOTACTL)		+= quota.o kqid.o
> >  obj-$(CONFIG_QUOTA_NETLINK_INTERFACE)	+= netlink.o
> > +obj-$(CONFIG_QFMT_MEM)		+= quota_mem.o
> > diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> > index 0427b44bfee5..f1a7a03632a2 100644
> > --- a/fs/quota/dquot.c
> > +++ b/fs/quota/dquot.c
> > @@ -736,6 +736,9 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
> >  	spin_lock(&dq_list_lock);
> >  	while (!list_empty(&free_dquots) && sc->nr_to_scan) {
> >  		dquot = list_first_entry(&free_dquots, struct dquot, dq_free);
> > +		if (test_bit(DQ_NO_SHRINK_B, &dquot->dq_flags) &&
> > +		    !test_bit(DQ_FAKE_B, &dquot->dq_flags))
> > +			continue;
> >  		remove_dquot_hash(dquot);
> >  		remove_free_dquot(dquot);
> >  		remove_inuse(dquot);
> > diff --git a/fs/quota/quota_mem.c b/fs/quota/quota_mem.c
> > new file mode 100644
> > index 000000000000..7d5e82122143
> > --- /dev/null
> > +++ b/fs/quota/quota_mem.c
> > @@ -0,0 +1,260 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * In memory quota format relies on quota infrastructure to store dquot
> > + * information for us. While conventional quota formats for file systems
> > + * with persistent storage can load quota information into dquot from the
> > + * storage on-demand and hence quota dquot shrinker can free any dquot
> > + * that is not currently being used, it must be avoided here. Otherwise we
> > + * can lose valuable information, user provided limits, because there is
> > + * no persistent storage to load the information from afterwards.
> > + *
> > + * One information that in-memory quota format needs to keep track of is
> > + * a sorted list of ids for each quota type. This is done by utilizing
> > + * an rb tree which root is stored in mem_dqinfo->dqi_priv for each quota
> > + * type.
> > + *
> > + * This format can be used to support quota on file system without persistent
> > + * storage such as tmpfs.
> > + */
> > +#include <linux/errno.h>
> > +#include <linux/fs.h>
> > +#include <linux/mount.h>
> > +#include <linux/kernel.h>
> > +#include <linux/init.h>
> > +#include <linux/module.h>
> > +#include <linux/slab.h>
> > +#include <linux/rbtree.h>
> > +
> > +#include <linux/quotaops.h>
> > +#include <linux/quota.h>
> > +
> > +MODULE_AUTHOR("Lukas Czerner");
> > +MODULE_DESCRIPTION("Quota in-memory format support");
> > +MODULE_LICENSE("GPL");
> > +
> > +/*
> > + * The following constants define the amount of time given a user
> > + * before the soft limits are treated as hard limits (usually resulting
> > + * in an allocation failure). The timer is started when the user crosses
> > + * their soft limit, it is reset when they go below their soft limit.
> > + */
> > +#define MAX_IQ_TIME  604800	/* (7*24*60*60) 1 week */
> > +#define MAX_DQ_TIME  604800	/* (7*24*60*60) 1 week */
> > +
> > +struct quota_id {
> > +	struct rb_node	node;
> > +	qid_t		id;
> > +};
> > +
> > +static int mem_check_quota_file(struct super_block *sb, int type)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 1;
> > +}
> > +
> > +/*
> > + * There is no real quota file. Just allocate rb_root for quota ids and
> > + * set limits
> > + */
> > +static int mem_read_file_info(struct super_block *sb, int type)
> > +{
> > +	struct quota_info *dqopt = sb_dqopt(sb);
> > +	struct mem_dqinfo *info = &dqopt->info[type];
> > +	int ret = 0;
> > +
> > +	down_read(&dqopt->dqio_sem);
> > +	if (info->dqi_fmt_id != QFMT_MEM_ONLY) {
> > +		ret = -EINVAL;
> > +		goto out_unlock;
> > +	}
> > +
> > +	info->dqi_priv = kzalloc(sizeof(struct rb_root), GFP_NOFS);
> > +	if (!info->dqi_priv) {
> > +		ret = -ENOMEM;
> > +		goto out_unlock;
> > +	}
> > +
> > +	/*
> > +	 * Used space is stored as unsigned 64-bit value in bytes but
> > +	 * quota core supports only signed 64-bit values so use that
> > +	 * as a limit
> > +	 */
> > +	info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
> > +	info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
> > +
> > +	info->dqi_bgrace = MAX_DQ_TIME;
> > +	info->dqi_igrace = MAX_IQ_TIME;
> > +	info->dqi_flags = 0;
> > +
> > +out_unlock:
> > +	up_read(&dqopt->dqio_sem);
> > +	return ret;
> > +}
> > +
> > +static int mem_write_file_info(struct super_block *sb, int type)
> > +{
> > +	/* There is no real quota file, nothing to do */
> > +	return 0;
> > +}
> > +
> > +/*
> > + * Free all the quota_id entries in the rb tree and rb_root.
> > + */
> > +static int mem_free_file_info(struct super_block *sb, int type)
> > +{
> > +	struct mem_dqinfo *info = &sb_dqopt(sb)->info[type];
> > +	struct rb_root *root = info->dqi_priv;
> > +	struct quota_id *entry;
> > +	struct rb_node *node;
> > +
> > +	info->dqi_priv = NULL;
> > +	node = rb_first(root);
> > +	while (node) {
> > +		entry = rb_entry(node, struct quota_id, node);
> > +		node = rb_next(&entry->node);
> > +
> > +		rb_erase(&entry->node, root);
> > +		kfree(entry);
> > +	}
> > +
> > +	kfree(root);
> > +	return 0;
> > +}
> > +
> > +/*
> > + * There is no real quota file, nothing to read. Just insert the id in
> > + * the rb tree.
> > + */
> > +static int mem_read_dquot(struct dquot *dquot)
> > +{
> > +	struct mem_dqinfo *info = sb_dqinfo(dquot->dq_sb, dquot->dq_id.type);
> > +	struct rb_node **n = &((struct rb_root *)info->dqi_priv)->rb_node;
> > +	struct rb_node *parent = NULL, *new_node = NULL;
> > +	struct quota_id *new_entry, *entry;
> > +	qid_t id = from_kqid(&init_user_ns, dquot->dq_id);
> 
> Hey Lukas,
> 
> tmpfs instances can be mounted inside of mount namespaces owned by user
> namespaces as is the case in unprivileged containers. An easy example is:
> 
> unshare --mount --user --map-root
> mount -t tmpfs tmpfs /mnt
> 
> This tmpfs instances will be mounted with sb->s_user_ns set to the
> userns just created during the unshare call and not to init_user_ns. So
> this means that the filesystem idmapping isn't a 1:1 mapping. This needs
> to be taken into account:
> 
> qid_t id = from_kqid(sb->s_user_ns, dquot->dq_id);
> 
> similar below.
> 
> But dquot_load_quota_sb() which you use in a later patch is restricted
> to the init_user_ns which means that your patch as it stands is only
> useable for tmpfs instances mounted in the init_user_ns.
> 
> If that's intentional then the code above is probably fine but if it's
> not then you need preliminary patches to support quotas from filesystems
> mountable in non-initial user namespaces.
> 
> Enabling this shouldn't be a big deal as it mostly involves updating
> callsites to account for sb->s_user_ns when reading and writing quotas.
> I've looked at that a while ago but there was no filesystem with quota
> support that was also mountable in a user namespaces. Idmapped mounts
> are already taken care of.
> 

Hi Christian,

that's a good point, thank you for bringing that to my attention I
didn't think of that at all. I'll have to think about whether it makes
sense to enable it outside init_user_ns as well. Can't think of why not
atm.

Thanks!
-Lukas