[PATCH AUTOSEL 5.15 001/188] Bluetooth: Fix debugfs entry leak in hci_register_dev()

[PATCH AUTOSEL 5.15 001/188] Bluetooth: Fix debugfs entry leak in hci_register_dev()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 5a4bb6a8e981d3d0d492aa38412ee80b21033177 ]

Fault injection test report debugfs entry leak as follows:

debugfs: Directory 'hci0' with parent 'bluetooth' already present!

When register_pm_notifier() failed in hci_register_dev(), the debugfs
create by debugfs_create_dir() do not removed in the error handing path.

Add the remove debugfs code to fix it.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8a47a3017d61d..cc48a8a9901c0 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3998,6 +3998,7 @@ int hci_register_dev(struct hci_dev *hdev)
 	return id;
 
 err_wqueue:
+	debugfs_remove_recursive(hdev->debugfs);
 	destroy_workqueue(hdev->workqueue);
 	destroy_workqueue(hdev->req_workqueue);
 err:
-- 
2.34.1

[PATCH AUTOSEL 5.15 002/188] Bluetooth: Fix memory leak of hci device

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 75d9b8559ac36e059238ee4f8e33cd86086586ba ]

Fault injection test reported memory leak of hci device as follows:

unreferenced object 0xffff88800b858000 (size 8192):
  comm "kworker/0:2", pid 167, jiffies 4294955747 (age 557.148s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 ad 4e ad de  .............N..
  backtrace:
    [<0000000070eb1059>] kmem_cache_alloc_trace mm/slub.c:3208
    [<00000000015eb521>] hci_alloc_dev_priv include/linux/slab.h:591
    [<00000000dcfc1e21>] bpa10x_probe include/net/bluetooth/hci_core.h:1240
    [<000000005d3028c7>] usb_probe_interface drivers/usb/core/driver.c:397
    [<00000000cbac9243>] really_probe drivers/base/dd.c:517
    [<0000000024cab3f0>] __driver_probe_device drivers/base/dd.c:751
    [<00000000202135cb>] driver_probe_device drivers/base/dd.c:782
    [<000000000761f2bc>] __device_attach_driver drivers/base/dd.c:899
    [<00000000f7d63134>] bus_for_each_drv drivers/base/bus.c:427
    [<00000000c9551f0b>] __device_attach drivers/base/dd.c:971
    [<000000007f79bd16>] bus_probe_device drivers/base/bus.c:487
    [<000000007bb8b95a>] device_add drivers/base/core.c:3364
    [<000000009564d9ea>] usb_set_configuration drivers/usb/core/message.c:2171
    [<00000000e4657087>] usb_generic_driver_probe drivers/usb/core/generic.c:239
    [<0000000071ede518>] usb_probe_device drivers/usb/core/driver.c:294
    [<00000000cbac9243>] really_probe drivers/base/dd.c:517

hci_alloc_dev() do not init the device's flag. And hci_free_dev()
using put_device() to free the memory allocated for this device,
but it calls just put_device(dev) only in case of HCI_UNREGISTER
flag is set, So any error handing before hci_register_dev() success
will cause memory leak.

To avoid this behaviour we can using kfree() to release dev before
hci_register_dev() success.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_sysfs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 7827639ecf5c3..4e3e0451b08c1 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -86,6 +86,8 @@ static void bt_host_release(struct device *dev)
 
 	if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
 		hci_release_dev(hdev);
+	else
+		kfree(hdev);
 	module_put(THIS_MODULE);
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 004/188] Bluetooth: Fix removing adv when processing cmd complete

[Sasha Levin]

From: Archie Pusaka <apusaka@chromium.org>

[ Upstream commit 2128939fe2e771645dd88e1938c27fdf96bd1cd0 ]

If we remove one instance of adv using Set Extended Adv Enable, there
is a possibility of issue occurs when processing the Command Complete
event. Especially, the adv_info might not be found since we already
remove it in hci_req_clear_adv_instance() -> hci_remove_adv_instance().
If that's the case, we will mistakenly proceed to remove all adv
instances instead of just one single instance.

This patch fixes the issue by checking the content of the HCI command
instead of checking whether the adv_info is found.

Signed-off-by: Archie Pusaka <apusaka@chromium.org>
Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_event.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 0bca035bf2dcc..75116cf1b173d 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1325,8 +1325,10 @@ static void hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev,
 					   &conn->le_conn_timeout,
 					   conn->conn_timeout);
 	} else {
-		if (adv) {
-			adv->enabled = false;
+		if (cp->num_of_sets) {
+			if (adv)
+				adv->enabled = false;
+
 			/* If just one instance was disabled check if there are
 			 * any other instance enabled before clearing HCI_LE_ADV
 			 */
-- 
2.34.1

[PATCH AUTOSEL 5.15 006/188] libbpf: Validate that .BTF and .BTF.ext sections contain data

[Sasha Levin]

From: Andrii Nakryiko <andrii@kernel.org>

[ Upstream commit 62554d52e71797eefa3fc15b54008038837bb2d4 ]

.BTF and .BTF.ext ELF sections should have SHT_PROGBITS type and contain
data. If they are not, ELF is invalid or corrupted, so bail out.
Otherwise this can lead to data->d_buf being NULL and SIGSEGV later on.
Reported by oss-fuzz project.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20211103173213.1376990-4-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/libbpf.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 7145463a4a562..6613f362f35d0 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -3035,8 +3035,12 @@ static int bpf_object__elf_collect(struct bpf_object *obj)
 		} else if (strcmp(name, MAPS_ELF_SEC) == 0) {
 			obj->efile.btf_maps_shndx = idx;
 		} else if (strcmp(name, BTF_ELF_SEC) == 0) {
+			if (sh->sh_type != SHT_PROGBITS)
+				return -LIBBPF_ERRNO__FORMAT;
 			btf_data = data;
 		} else if (strcmp(name, BTF_EXT_ELF_SEC) == 0) {
+			if (sh->sh_type != SHT_PROGBITS)
+				return -LIBBPF_ERRNO__FORMAT;
 			btf_ext_data = data;
 		} else if (sh.sh_type == SHT_SYMTAB) {
 			/* already processed during the first pass above */
-- 
2.34.1

[PATCH AUTOSEL 5.15 008/188] selftests/bpf: Fix memory leaks in btf_type_c_dump() helper

[Sasha Levin]

From: Andrii Nakryiko <andrii@kernel.org>

[ Upstream commit 8ba285874913da21ca39a46376e9cc5ce0f45f94 ]

Free up memory and resources used by temporary allocated memstream and
btf_dump instance.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/20211107165521.9240-4-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/btf_helpers.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/btf_helpers.c b/tools/testing/selftests/bpf/btf_helpers.c
index b692e6ead9b55..0a4ad7cb2c200 100644
--- a/tools/testing/selftests/bpf/btf_helpers.c
+++ b/tools/testing/selftests/bpf/btf_helpers.c
@@ -246,18 +246,23 @@ const char *btf_type_c_dump(const struct btf *btf)
 	d = btf_dump__new(btf, NULL, &opts, btf_dump_printf);
 	if (libbpf_get_error(d)) {
 		fprintf(stderr, "Failed to create btf_dump instance: %ld\n", libbpf_get_error(d));
-		return NULL;
+		goto err_out;
 	}
 
 	for (i = 1; i <= btf__get_nr_types(btf); i++) {
 		err = btf_dump__dump_type(d, i);
 		if (err) {
 			fprintf(stderr, "Failed to dump type [%d]: %d\n", i, err);
-			return NULL;
+			goto err_out;
 		}
 	}
 
+	btf_dump__free(d);
 	fflush(buf_file);
 	fclose(buf_file);
 	return buf;
+err_out:
+	btf_dump__free(d);
+	fclose(buf_file);
+	return NULL;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.15 009/188] selftests/bpf: Destroy XDP link correctly

[Sasha Levin]

From: Andrii Nakryiko <andrii@kernel.org>

[ Upstream commit f91231eeeed752119f49eb6620cae44ec745a007 ]

bpf_link__detach() was confused with bpf_link__destroy() and leaves
leaked FD in the process. Fix the problem.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/20211107165521.9240-9-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
index 59adb4715394f..3c85247f96f95 100644
--- a/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
+++ b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
@@ -204,8 +204,8 @@ static int pass_ack(struct migrate_reuseport_test_case *test_case)
 {
 	int err;
 
-	err = bpf_link__detach(test_case->link);
-	if (!ASSERT_OK(err, "bpf_link__detach"))
+	err = bpf_link__destroy(test_case->link);
+	if (!ASSERT_OK(err, "bpf_link__destroy"))
 		return -1;
 
 	test_case->link = NULL;
-- 
2.34.1

[PATCH AUTOSEL 5.15 010/188] selftests/bpf: Fix bpf_object leak in skb_ctx selftest

[Sasha Levin]

From: Andrii Nakryiko <andrii@kernel.org>

[ Upstream commit 8c7a95520184b6677ca6075e12df9c208d57d088 ]

skb_ctx selftest didn't close bpf_object implicitly allocated by
bpf_prog_test_load() helper. Fix the problem by explicitly calling
bpf_object__close() at the end of the test.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/20211107165521.9240-10-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/prog_tests/skb_ctx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/skb_ctx.c b/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
index fafeddaad6a99..23915be6172d6 100644
--- a/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
+++ b/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
@@ -105,4 +105,6 @@ void test_skb_ctx(void)
 		   "ctx_out_mark",
 		   "skb->mark == %u, expected %d\n",
 		   skb.mark, 10);
+
+	bpf_object__close(obj);
 }
-- 
2.34.1

[PATCH AUTOSEL 5.15 011/188] ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply

[Sasha Levin]

From: Zekun Shen <bruceshenzk@gmail.com>

[ Upstream commit ae80b6033834342601e99f74f6a62ff5092b1cee ]

Unexpected WDCMSG_TARGET_START replay can lead to null-ptr-deref
when ar->tx_cmd->odata is NULL. The patch adds a null check to
prevent such case.

KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
 ar5523_cmd+0x46a/0x581 [ar5523]
 ar5523_probe.cold+0x1b7/0x18da [ar5523]
 ? ar5523_cmd_rx_cb+0x7a0/0x7a0 [ar5523]
 ? __pm_runtime_set_status+0x54a/0x8f0
 ? _raw_spin_trylock_bh+0x120/0x120
 ? pm_runtime_barrier+0x220/0x220
 ? __pm_runtime_resume+0xb1/0xf0
 usb_probe_interface+0x25b/0x710
 really_probe+0x209/0x5d0
 driver_probe_device+0xc6/0x1b0
 device_driver_attach+0xe2/0x120

I found the bug using a custome USBFuzz port. It's a research work
to fuzz USB stack/drivers. I modified it to fuzz ath9k driver only,
providing hand-crafted usb descriptors to QEMU.

After fixing the code (fourth byte in usb packet) to WDCMSG_TARGET_START,
I got the null-ptr-deref bug. I believe the bug is triggerable whenever
cmd->odata is NULL. After patching, I tested with the same input and no
longer see the KASAN report.

This was NOT tested on a real device.

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXsmPQ3awHFLuAj2@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ar5523/ar5523.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index 49cc4b7ed5163..1baec4b412c8d 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -153,6 +153,10 @@ static void ar5523_cmd_rx_cb(struct urb *urb)
 			ar5523_err(ar, "Invalid reply to WDCMSG_TARGET_START");
 			return;
 		}
+		if (!cmd->odata) {
+			ar5523_err(ar, "Unexpected WDCMSG_TARGET_START reply");
+			return;
+		}
 		memcpy(cmd->odata, hdr + 1, sizeof(u32));
 		cmd->olen = sizeof(u32);
 		cmd->res = 0;
-- 
2.34.1

[PATCH AUTOSEL 5.15 020/188] batman-adv: allow netlink usage in unprivileged containers

[Sasha Levin]

From: Linus Lüssing <linus.luessing@c0d3.blue>

[ Upstream commit 9057d6c23e7388ee9d037fccc9a7bc8557ce277b ]

Currently, creating a batman-adv interface in an unprivileged LXD
container and attaching secondary interfaces to it with "ip" or "batctl"
works fine. However all batctl debug and configuration commands
fail:

  root@container:~# batctl originators
  Error received: Operation not permitted
  root@container:~# batctl orig_interval
  1000
  root@container:~# batctl orig_interval 2000
  root@container:~# batctl orig_interval
  1000

To fix this change the generic netlink permissions from GENL_ADMIN_PERM
to GENL_UNS_ADMIN_PERM. This way a batman-adv interface is fully
maintainable as root from within a user namespace, from an unprivileged
container.

All except one batman-adv netlink setting are per interface and do not
leak information or change settings from the host system and are
therefore save to retrieve or modify as root from within an unprivileged
container.

"batctl routing_algo" / BATADV_CMD_GET_ROUTING_ALGOS is the only
exception: It provides the batman-adv kernel module wide default routing
algorithm. However it is read-only from netlink and an unprivileged
container is still not allowed to modify
/sys/module/batman_adv/parameters/routing_algo. Instead it is advised to
use the newly introduced "batctl if create routing_algo RA_NAME" /
IFLA_BATADV_ALGO_NAME to set the routing algorithm on interface
creation, which already works fine in an unprivileged container.

Cc: Tycho Andersen <tycho@tycho.pizza>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/batman-adv/netlink.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/net/batman-adv/netlink.c b/net/batman-adv/netlink.c
index 29276284d281c..00875e1d8c44c 100644
--- a/net/batman-adv/netlink.c
+++ b/net/batman-adv/netlink.c
@@ -1368,21 +1368,21 @@ static const struct genl_small_ops batadv_netlink_ops[] = {
 	{
 		.cmd = BATADV_CMD_TP_METER,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_tp_meter_start,
 		.internal_flags = BATADV_FLAG_NEED_MESH,
 	},
 	{
 		.cmd = BATADV_CMD_TP_METER_CANCEL,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_tp_meter_cancel,
 		.internal_flags = BATADV_FLAG_NEED_MESH,
 	},
 	{
 		.cmd = BATADV_CMD_GET_ROUTING_ALGOS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_algo_dump,
 	},
 	{
@@ -1397,68 +1397,68 @@ static const struct genl_small_ops batadv_netlink_ops[] = {
 	{
 		.cmd = BATADV_CMD_GET_TRANSTABLE_LOCAL,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_tt_local_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_TRANSTABLE_GLOBAL,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_tt_global_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_ORIGINATORS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_orig_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_NEIGHBORS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_hardif_neigh_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_GATEWAYS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_gw_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_BLA_CLAIM,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_bla_claim_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_BLA_BACKBONE,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_bla_backbone_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_DAT_CACHE,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_dat_cache_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_MCAST_FLAGS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_mcast_flags_dump,
 	},
 	{
 		.cmd = BATADV_CMD_SET_MESH,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_set_mesh,
 		.internal_flags = BATADV_FLAG_NEED_MESH,
 	},
 	{
 		.cmd = BATADV_CMD_SET_HARDIF,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_set_hardif,
 		.internal_flags = BATADV_FLAG_NEED_MESH |
 				  BATADV_FLAG_NEED_HARDIF,
@@ -1474,7 +1474,7 @@ static const struct genl_small_ops batadv_netlink_ops[] = {
 	{
 		.cmd = BATADV_CMD_SET_VLAN,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_set_vlan,
 		.internal_flags = BATADV_FLAG_NEED_MESH |
 				  BATADV_FLAG_NEED_VLAN,
-- 
2.34.1

[PATCH AUTOSEL 5.15 022/188] ath11k: Fix crash caused by uninitialized TX ring

[Sasha Levin]

From: Baochen Qiang <bqiang@codeaurora.org>

[ Upstream commit 273703ebdb01b6c5f1aaf4b98fb57b177609055c ]

Commit 31582373a4a8 ("ath11k: Change number of TCL rings to one for
QCA6390") avoids initializing the other entries of dp->tx_ring cause
the corresponding TX rings on QCA6390/WCN6855 are not used, but leaves
those ring masks in ath11k_hw_ring_mask_qca6390.tx unchanged. Normally
this is OK because we will only get interrupts from the first TX ring
on these chips and thus only the first entry of dp->tx_ring is involved.

In case of one MSI vector, all DP rings share the same IRQ. For each
interrupt, all rings have to be checked, which means the other entries
of dp->tx_ring are involved. However since they are not initialized,
system crashes.

Fix this issue by simply removing those ring masks.

crash stack:
[  102.907438] BUG: kernel NULL pointer dereference, address: 0000000000000028
[  102.907447] #PF: supervisor read access in kernel mode
[  102.907451] #PF: error_code(0x0000) - not-present page
[  102.907453] PGD 1081f0067 P4D 1081f0067 PUD 1081f1067 PMD 0
[  102.907460] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI
[  102.907465] CPU: 0 PID: 3511 Comm: apt-check Kdump: loaded Tainted: G            E     5.15.0-rc4-wt-ath+ #20
[  102.907470] Hardware name: AMD Celadon-RN/Celadon-RN, BIOS RCD1005E 10/08/2020
[  102.907472] RIP: 0010:ath11k_dp_tx_completion_handler+0x201/0x830 [ath11k]
[  102.907497] Code: 3c 24 4e 8d ac 37 10 04 00 00 4a 8d bc 37 68 04 00 00 48 89 3c 24 48 63 c8 89 83 84 18 00 00 48 c1 e1 05 48 03 8b 78 18 00 00 <8b> 51 08 89 d6 83 e6 07 89 74 24 24 83 fe 03 74 04 85 f6 75 63 41
[  102.907501] RSP: 0000:ffff9b7340003e08 EFLAGS: 00010202
[  102.907505] RAX: 0000000000000001 RBX: ffff8e21530c0100 RCX: 0000000000000020
[  102.907508] RDX: 0000000000000000 RSI: 00000000fffffe00 RDI: ffff8e21530c1938
[  102.907511] RBP: ffff8e21530c0000 R08: 0000000000000001 R09: 0000000000000000
[  102.907513] R10: ffff8e2145534c10 R11: 0000000000000001 R12: ffff8e21530c2938
[  102.907515] R13: ffff8e21530c18e0 R14: 0000000000000100 R15: ffff8e21530c2978
[  102.907518] FS:  00007f5d4297e740(0000) GS:ffff8e243d600000(0000) knlGS:0000000000000000
[  102.907521] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.907524] CR2: 0000000000000028 CR3: 00000001034ea000 CR4: 0000000000350ef0
[  102.907527] Call Trace:
[  102.907531]  <IRQ>
[  102.907537]  ath11k_dp_service_srng+0x5c/0x2f0 [ath11k]
[  102.907556]  ath11k_pci_ext_grp_napi_poll+0x21/0x70 [ath11k_pci]
[  102.907562]  __napi_poll+0x2c/0x160
[  102.907570]  net_rx_action+0x251/0x310
[  102.907576]  __do_softirq+0x107/0x2fc
[  102.907585]  irq_exit_rcu+0x74/0x90
[  102.907593]  common_interrupt+0x83/0xa0
[  102.907600]  </IRQ>
[  102.907601]  asm_common_interrupt+0x1e/0x40

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211026011605.58615-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/hw.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/hw.c b/drivers/net/wireless/ath/ath11k/hw.c
index d9596903b0a58..3e92cc7cfe4c9 100644
--- a/drivers/net/wireless/ath/ath11k/hw.c
+++ b/drivers/net/wireless/ath/ath11k/hw.c
@@ -1015,8 +1015,6 @@ const struct ath11k_hw_ring_mask ath11k_hw_ring_mask_ipq8074 = {
 const struct ath11k_hw_ring_mask ath11k_hw_ring_mask_qca6390 = {
 	.tx  = {
 		ATH11K_TX_RING_MASK_0,
-		ATH11K_TX_RING_MASK_1,
-		ATH11K_TX_RING_MASK_2,
 	},
 	.rx_mon_status = {
 		0, 0, 0, 0,
-- 
2.34.1

[PATCH AUTOSEL 5.15 028/188] amd: lance: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 0222ee53c483df7572eea7ba8585dda59328d46e ]

IO reads, so save to an array then eth_hw_addr_set().

Fixes build on x86 (32bit).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/lance.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/lance.c b/drivers/net/ethernet/amd/lance.c
index 945bf1d875072..462016666752c 100644
--- a/drivers/net/ethernet/amd/lance.c
+++ b/drivers/net/ethernet/amd/lance.c
@@ -480,6 +480,7 @@ static int __init lance_probe1(struct net_device *dev, int ioaddr, int irq, int
 	unsigned long flags;
 	int err = -ENOMEM;
 	void __iomem *bios;
+	u8 addr[ETH_ALEN];
 
 	/* First we look for special cases.
 	   Check for HP's on-board ethernet by looking for 'HP' in the BIOS.
@@ -541,7 +542,8 @@ static int __init lance_probe1(struct net_device *dev, int ioaddr, int irq, int
 	/* There is a 16 byte station address PROM at the base address.
 	   The first six bytes are the station address. */
 	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = inb(ioaddr + i);
+		addr[i] = inb(ioaddr + i);
+	eth_hw_addr_set(dev, addr);
 	printk("%pM", dev->dev_addr);
 
 	dev->base_addr = ioaddr;
-- 
2.34.1

[PATCH AUTOSEL 5.15 029/188] amd: ni65: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 69ede3097b871dbc793dd6e21f38fde56d273963 ]

IO reads, so save to an array then eth_hw_addr_set().

Fixes build on x86 (32bit).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/ni65.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/amd/ni65.c b/drivers/net/ethernet/amd/ni65.c
index 032e8922b4829..8ba579b89b758 100644
--- a/drivers/net/ethernet/amd/ni65.c
+++ b/drivers/net/ethernet/amd/ni65.c
@@ -251,7 +251,7 @@ static void ni65_recv_intr(struct net_device *dev,int);
 static void ni65_xmit_intr(struct net_device *dev,int);
 static int  ni65_open(struct net_device *dev);
 static int  ni65_lance_reinit(struct net_device *dev);
-static void ni65_init_lance(struct priv *p,unsigned char*,int,int);
+static void ni65_init_lance(struct priv *p,const unsigned char*,int,int);
 static netdev_tx_t ni65_send_packet(struct sk_buff *skb,
 				    struct net_device *dev);
 static void  ni65_timeout(struct net_device *dev, unsigned int txqueue);
@@ -418,6 +418,7 @@ static int __init ni65_probe1(struct net_device *dev,int ioaddr)
 {
 	int i,j;
 	struct priv *p;
+	u8 addr[ETH_ALEN];
 	unsigned long flags;
 
 	dev->irq = irq;
@@ -444,7 +445,8 @@ static int __init ni65_probe1(struct net_device *dev,int ioaddr)
 		return -ENODEV;
 
 	for(j=0;j<6;j++)
-		dev->dev_addr[j] = inb(ioaddr+cards[i].addr_offset+j);
+		addr[j] = inb(ioaddr+cards[i].addr_offset+j);
+	eth_hw_addr_set(dev, addr);
 
 	if( (j=ni65_alloc_buffer(dev)) < 0) {
 		release_region(ioaddr, cards[i].total_size);
@@ -566,7 +568,7 @@ static int __init ni65_probe1(struct net_device *dev,int ioaddr)
 /*
  * set lance register and trigger init
  */
-static void ni65_init_lance(struct priv *p,unsigned char *daddr,int filter,int mode)
+static void ni65_init_lance(struct priv *p,const unsigned char *daddr,int filter,int mode)
 {
 	int i;
 	u32 pib;
-- 
2.34.1

[PATCH AUTOSEL 5.15 030/188] amd: a2065/ariadne: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 285e4c664d6461b175b4613fc77126b5006a1912 ]

dev_addr is initialized byte by byte from series.

Fixes build on x86 (32bit).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/a2065.c   | 18 ++++++++++--------
 drivers/net/ethernet/amd/ariadne.c | 20 +++++++++++---------
 2 files changed, 21 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/amd/a2065.c b/drivers/net/ethernet/amd/a2065.c
index 2f808dbc8b0ed..3a351d3396bfe 100644
--- a/drivers/net/ethernet/amd/a2065.c
+++ b/drivers/net/ethernet/amd/a2065.c
@@ -680,6 +680,7 @@ static int a2065_init_one(struct zorro_dev *z,
 	unsigned long base_addr = board + A2065_LANCE;
 	unsigned long mem_start = board + A2065_RAM;
 	struct resource *r1, *r2;
+	u8 addr[ETH_ALEN];
 	u32 serial;
 	int err;
 
@@ -706,17 +707,18 @@ static int a2065_init_one(struct zorro_dev *z,
 	r2->name = dev->name;
 
 	serial = be32_to_cpu(z->rom.er_SerialNumber);
-	dev->dev_addr[0] = 0x00;
+	addr[0] = 0x00;
 	if (z->id != ZORRO_PROD_AMERISTAR_A2065) {	/* Commodore */
-		dev->dev_addr[1] = 0x80;
-		dev->dev_addr[2] = 0x10;
+		addr[1] = 0x80;
+		addr[2] = 0x10;
 	} else {					/* Ameristar */
-		dev->dev_addr[1] = 0x00;
-		dev->dev_addr[2] = 0x9f;
+		addr[1] = 0x00;
+		addr[2] = 0x9f;
 	}
-	dev->dev_addr[3] = (serial >> 16) & 0xff;
-	dev->dev_addr[4] = (serial >> 8) & 0xff;
-	dev->dev_addr[5] = serial & 0xff;
+	addr[3] = (serial >> 16) & 0xff;
+	addr[4] = (serial >> 8) & 0xff;
+	addr[5] = serial & 0xff;
+	eth_hw_addr_set(dev, addr);
 	dev->base_addr = (unsigned long)ZTWO_VADDR(base_addr);
 	dev->mem_start = (unsigned long)ZTWO_VADDR(mem_start);
 	dev->mem_end = dev->mem_start + A2065_RAM_SIZE;
diff --git a/drivers/net/ethernet/amd/ariadne.c b/drivers/net/ethernet/amd/ariadne.c
index 5e0f645f5bde7..4ea7b9f3c4249 100644
--- a/drivers/net/ethernet/amd/ariadne.c
+++ b/drivers/net/ethernet/amd/ariadne.c
@@ -441,11 +441,11 @@ static int ariadne_open(struct net_device *dev)
 
 	/* Set the Ethernet Hardware Address */
 	lance->RAP = CSR12;		/* Physical Address Register, PADR[15:0] */
-	lance->RDP = ((u_short *)&dev->dev_addr[0])[0];
+	lance->RDP = ((const u_short *)&dev->dev_addr[0])[0];
 	lance->RAP = CSR13;		/* Physical Address Register, PADR[31:16] */
-	lance->RDP = ((u_short *)&dev->dev_addr[0])[1];
+	lance->RDP = ((const u_short *)&dev->dev_addr[0])[1];
 	lance->RAP = CSR14;		/* Physical Address Register, PADR[47:32] */
-	lance->RDP = ((u_short *)&dev->dev_addr[0])[2];
+	lance->RDP = ((const u_short *)&dev->dev_addr[0])[2];
 
 	/* Set the Init Block Mode */
 	lance->RAP = CSR15;		/* Mode Register */
@@ -717,6 +717,7 @@ static int ariadne_init_one(struct zorro_dev *z,
 	unsigned long mem_start = board + ARIADNE_RAM;
 	struct resource *r1, *r2;
 	struct net_device *dev;
+	u8 addr[ETH_ALEN];
 	u32 serial;
 	int err;
 
@@ -740,12 +741,13 @@ static int ariadne_init_one(struct zorro_dev *z,
 	r2->name = dev->name;
 
 	serial = be32_to_cpu(z->rom.er_SerialNumber);
-	dev->dev_addr[0] = 0x00;
-	dev->dev_addr[1] = 0x60;
-	dev->dev_addr[2] = 0x30;
-	dev->dev_addr[3] = (serial >> 16) & 0xff;
-	dev->dev_addr[4] = (serial >> 8) & 0xff;
-	dev->dev_addr[5] = serial & 0xff;
+	addr[0] = 0x00;
+	addr[1] = 0x60;
+	addr[2] = 0x30;
+	addr[3] = (serial >> 16) & 0xff;
+	addr[4] = (serial >> 8) & 0xff;
+	addr[5] = serial & 0xff;
+	eth_hw_addr_set(dev, addr);
 	dev->base_addr = (unsigned long)ZTWO_VADDR(base_addr);
 	dev->mem_start = (unsigned long)ZTWO_VADDR(mem_start);
 	dev->mem_end = dev->mem_start + ARIADNE_RAM_SIZE;
-- 
2.34.1

[PATCH AUTOSEL 5.15 031/188] amd: hplance: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 21942eef062781429b356974589d7965952940fb ]

Byte by byte assignments.

Fixes build on m68k.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/hplance.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/hplance.c b/drivers/net/ethernet/amd/hplance.c
index 6784f8748638b..055fda11c5724 100644
--- a/drivers/net/ethernet/amd/hplance.c
+++ b/drivers/net/ethernet/amd/hplance.c
@@ -129,6 +129,7 @@ static void hplance_init(struct net_device *dev, struct dio_dev *d)
 {
 	unsigned long va = (d->resource.start + DIO_VIRADDRBASE);
 	struct hplance_private *lp;
+	u8 addr[ETH_ALEN];
 	int i;
 
 	/* reset the board */
@@ -144,9 +145,10 @@ static void hplance_init(struct net_device *dev, struct dio_dev *d)
 		/* The NVRAM holds our ethernet address, one nibble per byte,
 		 * at bytes NVRAMOFF+1,3,5,7,9...
 		 */
-		dev->dev_addr[i] = ((in_8(va + HPLANCE_NVRAMOFF + i*4 + 1) & 0xF) << 4)
+		addr[i] = ((in_8(va + HPLANCE_NVRAMOFF + i*4 + 1) & 0xF) << 4)
 			| (in_8(va + HPLANCE_NVRAMOFF + i*4 + 3) & 0xF);
 	}
+	eth_hw_addr_set(dev, addr);
 
 	lp = netdev_priv(dev);
 	lp->lance.name = d->name;
-- 
2.34.1

[PATCH AUTOSEL 5.15 032/188] amd: atarilance: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit c3dc2f7196ca0f59d9baeb5d3b927e703944dc6c ]

Byte by byte assignments.

Fixes build on m68k.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/atarilance.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/amd/atarilance.c b/drivers/net/ethernet/amd/atarilance.c
index 9d2f49fd945ed..f57c82f8ae647 100644
--- a/drivers/net/ethernet/amd/atarilance.c
+++ b/drivers/net/ethernet/amd/atarilance.c
@@ -471,6 +471,7 @@ static unsigned long __init lance_probe1( struct net_device *dev,
 	int 					i;
 	static int 				did_version;
 	unsigned short			save1, save2;
+	u8 addr[ETH_ALEN];
 
 	PROBE_PRINT(( "Probing for Lance card at mem %#lx io %#lx\n",
 				  (long)memaddr, (long)ioaddr ));
@@ -585,14 +586,16 @@ static unsigned long __init lance_probe1( struct net_device *dev,
 		memcpy(dev->dev_addr, OldRieblDefHwaddr, ETH_ALEN);
 		break;
 	  case NEW_RIEBL:
-		lp->memcpy_f(dev->dev_addr, RIEBL_HWADDR_ADDR, ETH_ALEN);
+		lp->memcpy_f(addr, RIEBL_HWADDR_ADDR, ETH_ALEN);
+		eth_hw_addr_set(dev, addr);
 		break;
 	  case PAM_CARD:
 		i = IO->eeprom;
 		for( i = 0; i < 6; ++i )
-			dev->dev_addr[i] =
+			addr[i] =
 				((((unsigned short *)MEM)[i*2] & 0x0f) << 4) |
 				((((unsigned short *)MEM)[i*2+1] & 0x0f));
+		eth_hw_addr_set(dev, addr);
 		i = IO->mem;
 		break;
 	}
-- 
2.34.1

[PATCH AUTOSEL 5.15 033/188] amd: mvme147: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit cc71b8b9376ff5072d23b191654408c144dac6aa ]

Byte by byte assignments.

Fixes build on m68k.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/mvme147.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/amd/mvme147.c b/drivers/net/ethernet/amd/mvme147.c
index da97fccea9ea6..410c7b67eba4d 100644
--- a/drivers/net/ethernet/amd/mvme147.c
+++ b/drivers/net/ethernet/amd/mvme147.c
@@ -74,6 +74,7 @@ static struct net_device * __init mvme147lance_probe(void)
 	static int called;
 	static const char name[] = "MVME147 LANCE";
 	struct m147lance_private *lp;
+	u8 macaddr[ETH_ALEN];
 	u_long *addr;
 	u_long address;
 	int err;
@@ -93,15 +94,16 @@ static struct net_device * __init mvme147lance_probe(void)
 
 	addr = (u_long *)ETHERNET_ADDRESS;
 	address = *addr;
-	dev->dev_addr[0] = 0x08;
-	dev->dev_addr[1] = 0x00;
-	dev->dev_addr[2] = 0x3e;
+	macaddr[0] = 0x08;
+	macaddr[1] = 0x00;
+	macaddr[2] = 0x3e;
 	address = address >> 8;
-	dev->dev_addr[5] = address&0xff;
+	macaddr[5] = address&0xff;
 	address = address >> 8;
-	dev->dev_addr[4] = address&0xff;
+	macaddr[4] = address&0xff;
 	address = address >> 8;
-	dev->dev_addr[3] = address&0xff;
+	macaddr[3] = address&0xff;
+	eth_hw_addr_set(dev, macaddr);
 
 	printk("%s: MVME147 at 0x%08lx, irq %d, Hardware Address %pM\n",
 	       dev->name, dev->base_addr, MVME147_LANCE_IRQ,
-- 
2.34.1

[PATCH AUTOSEL 5.15 034/188] 8390: smc-ultra: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 5114ddf8dd881f9059147d3f130e9415ce94125e ]

IO reads, so save to an array then eth_hw_addr_set().

Fixes build on Alpha.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/8390/smc-ultra.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/8390/smc-ultra.c b/drivers/net/ethernet/8390/smc-ultra.c
index 0890fa493f70f..6e62c37c94005 100644
--- a/drivers/net/ethernet/8390/smc-ultra.c
+++ b/drivers/net/ethernet/8390/smc-ultra.c
@@ -204,6 +204,7 @@ static int __init ultra_probe1(struct net_device *dev, int ioaddr)
 {
 	int i, retval;
 	int checksum = 0;
+	u8 macaddr[ETH_ALEN];
 	const char *model_name;
 	unsigned char eeprom_irq = 0;
 	static unsigned version_printed;
@@ -239,7 +240,8 @@ static int __init ultra_probe1(struct net_device *dev, int ioaddr)
 	model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ";
 
 	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = inb(ioaddr + 8 + i);
+		macaddr[i] = inb(ioaddr + 8 + i);
+	eth_hw_addr_set(dev, macaddr);
 
 	netdev_info(dev, "%s at %#3x, %pM", model_name,
 		    ioaddr, dev->dev_addr);
-- 
2.34.1

[PATCH AUTOSEL 5.15 035/188] 8390: hydra: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit d7d28e90e229a8af0472421015c5828f5cd1ad2e ]

Loop with offsetting to every second byte, so use a temp buffer.

Fixes m68k build.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/8390/hydra.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/8390/hydra.c b/drivers/net/ethernet/8390/hydra.c
index 941754ea78ecf..1df7601af86a4 100644
--- a/drivers/net/ethernet/8390/hydra.c
+++ b/drivers/net/ethernet/8390/hydra.c
@@ -116,6 +116,7 @@ static int hydra_init(struct zorro_dev *z)
     unsigned long ioaddr = board+HYDRA_NIC_BASE;
     const char name[] = "NE2000";
     int start_page, stop_page;
+    u8 macaddr[ETH_ALEN];
     int j;
     int err;
 
@@ -129,7 +130,8 @@ static int hydra_init(struct zorro_dev *z)
 	return -ENOMEM;
 
     for (j = 0; j < ETH_ALEN; j++)
-	dev->dev_addr[j] = *((u8 *)(board + HYDRA_ADDRPROM + 2*j));
+	macaddr[j] = *((u8 *)(board + HYDRA_ADDRPROM + 2*j));
+    eth_hw_addr_set(dev, macaddr);
 
     /* We must set the 8390 for word mode. */
     z_writeb(0x4b, ioaddr + NE_EN0_DCFG);
-- 
2.34.1

[PATCH AUTOSEL 5.15 036/188] 8390: mac8390: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 973a34c087f43b61b26570110a284faf48d08d5d ]

Use temp to pass to the reading function, the function is generic
so can't fix there.

Fixes m68k build.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/8390/mac8390.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/8390/mac8390.c b/drivers/net/ethernet/8390/mac8390.c
index 91b04abfd6875..7fb819b9b89a5 100644
--- a/drivers/net/ethernet/8390/mac8390.c
+++ b/drivers/net/ethernet/8390/mac8390.c
@@ -292,6 +292,7 @@ static bool mac8390_rsrc_init(struct net_device *dev,
 	struct nubus_dirent ent;
 	int offset;
 	volatile unsigned short *i;
+	u8 addr[ETH_ALEN];
 
 	dev->irq = SLOT2IRQ(board->slot);
 	/* This is getting to be a habit */
@@ -314,7 +315,8 @@ static bool mac8390_rsrc_init(struct net_device *dev,
 		return false;
 	}
 
-	nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
+	nubus_get_rsrc_mem(addr, &ent, 6);
+	eth_hw_addr_set(dev, addr);
 
 	if (useresources[cardtype] == 1) {
 		nubus_rewinddir(&dir);
-- 
2.34.1

[PATCH AUTOSEL 5.15 037/188] 8390: wd: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit f95f8e890a2aa576425402fea44bfa657e8ccaa6 ]

IO reads, so save to an array then eth_hw_addr_set().

Fixes build on x86 (32bit).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/8390/wd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/8390/wd.c b/drivers/net/ethernet/8390/wd.c
index 263a942d81fad..5b00c452bede6 100644
--- a/drivers/net/ethernet/8390/wd.c
+++ b/drivers/net/ethernet/8390/wd.c
@@ -168,6 +168,7 @@ static int __init wd_probe1(struct net_device *dev, int ioaddr)
 	int checksum = 0;
 	int ancient = 0;			/* An old card without config registers. */
 	int word16 = 0;				/* 0 = 8 bit, 1 = 16 bit */
+	u8 addr[ETH_ALEN];
 	const char *model_name;
 	static unsigned version_printed;
 	struct ei_device *ei_local = netdev_priv(dev);
@@ -191,7 +192,8 @@ static int __init wd_probe1(struct net_device *dev, int ioaddr)
 		netdev_info(dev, version);
 
 	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = inb(ioaddr + 8 + i);
+		addr[i] = inb(ioaddr + 8 + i);
+	eth_hw_addr_set(dev, addr);
 
 	netdev_info(dev, "WD80x3 at %#3x, %pM", ioaddr, dev->dev_addr);
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 038/188] smc9194: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 80db345e7df0c507a83bd12ac7766fb054443804 ]

dev_addr is set from IO reads, and broken from a u16 value.

Fixes build on Alpha.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/smsc/smc9194.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc9194.c b/drivers/net/ethernet/smsc/smc9194.c
index 0ce403fa5f1a4..af661c65ffe2f 100644
--- a/drivers/net/ethernet/smsc/smc9194.c
+++ b/drivers/net/ethernet/smsc/smc9194.c
@@ -856,6 +856,7 @@ static int __init smc_probe(struct net_device *dev, int ioaddr)
 	word configuration_register;
 	word memory_info_register;
 	word memory_cfg_register;
+	u8 addr[ETH_ALEN];
 
 	/* Grab the region so that no one else tries to probe our ioports. */
 	if (!request_region(ioaddr, SMC_IO_EXTENT, DRV_NAME))
@@ -924,9 +925,10 @@ static int __init smc_probe(struct net_device *dev, int ioaddr)
 		word	address;
 
 		address = inw( ioaddr + ADDR0 + i  );
-		dev->dev_addr[ i + 1] = address >> 8;
-		dev->dev_addr[ i ] = address & 0xFF;
+		addr[i + 1] = address >> 8;
+		addr[i] = address & 0xFF;
 	}
+	eth_hw_addr_set(dev, addr);
 
 	/* get the memory information */
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 039/188] lasi_82594: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 5b6d5affd27486ec9152a66df1741cf67782712a ]

dev_addr is set from IO reads, passed to an arch-specific helper.
Note that the helper never reads it so uninitialized temp is fine.

Fixes build on parisc.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/i825xx/lasi_82596.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/i825xx/lasi_82596.c b/drivers/net/ethernet/i825xx/lasi_82596.c
index 48e001881c75f..0af70094aba34 100644
--- a/drivers/net/ethernet/i825xx/lasi_82596.c
+++ b/drivers/net/ethernet/i825xx/lasi_82596.c
@@ -147,6 +147,7 @@ lan_init_chip(struct parisc_device *dev)
 	struct	net_device *netdevice;
 	struct i596_private *lp;
 	int retval = -ENOMEM;
+	u8 addr[ETH_ALEN];
 	int i;
 
 	if (!dev->irq) {
@@ -167,13 +168,14 @@ lan_init_chip(struct parisc_device *dev)
 	netdevice->base_addr = dev->hpa.start;
 	netdevice->irq = dev->irq;
 
-	if (pdc_lan_station_id(netdevice->dev_addr, netdevice->base_addr)) {
+	if (pdc_lan_station_id(addr, netdevice->base_addr)) {
 		for (i = 0; i < 6; i++) {
-			netdevice->dev_addr[i] = gsc_readb(LAN_PROM_ADDR + i);
+			addr[i] = gsc_readb(LAN_PROM_ADDR + i);
 		}
 		printk(KERN_INFO
 		       "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
 	}
+	eth_hw_addr_set(netdevice, addr);
 
 	lp = netdev_priv(netdevice);
 	lp->options = dev->id.sversion == 0x72 ? OPT_SWAP_PORT : 0;
-- 
2.34.1

[PATCH AUTOSEL 5.15 040/188] apple: macmace: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit e217fc4affc8c7392e4db48488b36d2a5d446e9d ]

Byte by byte assignments.

Fixes build on m68k.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/apple/macmace.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/apple/macmace.c b/drivers/net/ethernet/apple/macmace.c
index 95d3061c61be9..8fcaf16399201 100644
--- a/drivers/net/ethernet/apple/macmace.c
+++ b/drivers/net/ethernet/apple/macmace.c
@@ -92,7 +92,7 @@ static void mace_reset(struct net_device *dev);
 static irqreturn_t mace_interrupt(int irq, void *dev_id);
 static irqreturn_t mace_dma_intr(int irq, void *dev_id);
 static void mace_tx_timeout(struct net_device *dev, unsigned int txqueue);
-static void __mace_set_address(struct net_device *dev, void *addr);
+static void __mace_set_address(struct net_device *dev, const void *addr);
 
 /*
  * Load a receive DMA channel with a base address and ring length
@@ -197,6 +197,7 @@ static int mace_probe(struct platform_device *pdev)
 	unsigned char *addr;
 	struct net_device *dev;
 	unsigned char checksum = 0;
+	u8 macaddr[ETH_ALEN];
 	int err;
 
 	dev = alloc_etherdev(PRIV_BYTES);
@@ -229,8 +230,9 @@ static int mace_probe(struct platform_device *pdev)
 	for (j = 0; j < 6; ++j) {
 		u8 v = bitrev8(addr[j<<4]);
 		checksum ^= v;
-		dev->dev_addr[j] = v;
+		macaddr[j] = v;
 	}
+	eth_hw_addr_set(dev, macaddr);
 	for (; j < 8; ++j) {
 		checksum ^= bitrev8(addr[j<<4]);
 	}
@@ -315,11 +317,12 @@ static void mace_reset(struct net_device *dev)
  * Load the address on a mace controller.
  */
 
-static void __mace_set_address(struct net_device *dev, void *addr)
+static void __mace_set_address(struct net_device *dev, const void *addr)
 {
 	struct mace_data *mp = netdev_priv(dev);
 	volatile struct mace *mb = mp->mace;
-	unsigned char *p = addr;
+	const unsigned char *p = addr;
+	u8 macaddr[ETH_ALEN];
 	int i;
 
 	/* load up the hardware address */
@@ -331,7 +334,8 @@ static void __mace_set_address(struct net_device *dev, void *addr)
 			;
 	}
 	for (i = 0; i < 6; ++i)
-		mb->padr = dev->dev_addr[i] = p[i];
+		mb->padr = macaddr[i] = p[i];
+	eth_hw_addr_set(dev, macaddr);
 	if (mp->chipid != BROKEN_ADDRCHG_REV)
 		mb->iac = 0;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.15 041/188] cirrus: mac89x0: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 9a962aedd30f7fceb828d3161a80e0526e358eb5 ]

Byte by byte assignments.

Fixes build on m68k.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/cirrus/mac89x0.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/cirrus/mac89x0.c b/drivers/net/ethernet/cirrus/mac89x0.c
index 6324e80960c3e..4a959a74b1cea 100644
--- a/drivers/net/ethernet/cirrus/mac89x0.c
+++ b/drivers/net/ethernet/cirrus/mac89x0.c
@@ -242,12 +242,15 @@ static int mac89x0_device_probe(struct platform_device *pdev)
 		pr_info("No EEPROM, giving up now.\n");
 		goto out1;
         } else {
+		u8 addr[ETH_ALEN];
+
                 for (i = 0; i < ETH_ALEN; i += 2) {
 			/* Big-endian (why??!) */
 			unsigned short s = readreg(dev, PP_IA + i);
-                        dev->dev_addr[i] = s >> 8;
-                        dev->dev_addr[i+1] = s & 0xff;
+			addr[i] = s >> 8;
+			addr[i+1] = s & 0xff;
                 }
+		eth_hw_addr_set(dev, addr);
         }
 
 	dev->irq = SLOT2IRQ(slot);
-- 
2.34.1

[PATCH AUTOSEL 5.15 045/188] libbpf: Accommodate DWARF/compiler bug with duplicated structs

[Sasha Levin]

From: Andrii Nakryiko <andrii@kernel.org>

[ Upstream commit efdd3eb8015e7447095f02a26eaabd164cd18004 ]

According to [0], compilers sometimes might produce duplicate DWARF
definitions for exactly the same struct/union within the same
compilation unit (CU). We've had similar issues with identical arrays
and handled them with a similar workaround in 6b6e6b1d09aa ("libbpf:
Accomodate DWARF/compiler bug with duplicated identical arrays"). Do the
same for struct/union by ensuring that two structs/unions are exactly
the same, down to the integer values of field referenced type IDs.

Solving this more generically (allowing referenced types to be
equivalent, but using different type IDs, all within a single CU)
requires a huge complexity increase to handle many-to-many mappings
between canonidal and candidate type graphs. Before we invest in that,
let's see if this approach handles all the instances of this issue in
practice. Thankfully it's pretty rare, it seems.

  [0] https://lore.kernel.org/bpf/YXr2NFlJTAhHdZqq@krava/

Reported-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211117194114.347675-1-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/btf.c | 45 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 41 insertions(+), 4 deletions(-)

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 1b9341ef638b0..ddd51e6d3a761 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -3358,8 +3358,8 @@ static long btf_hash_struct(struct btf_type *t)
 }
 
 /*
- * Check structural compatibility of two FUNC_PROTOs, ignoring referenced type
- * IDs. This check is performed during type graph equivalence check and
+ * Check structural compatibility of two STRUCTs/UNIONs, ignoring referenced
+ * type IDs. This check is performed during type graph equivalence check and
  * referenced types equivalence is checked separately.
  */
 static bool btf_shallow_equal_struct(struct btf_type *t1, struct btf_type *t2)
@@ -3730,6 +3730,31 @@ static int btf_dedup_identical_arrays(struct btf_dedup *d, __u32 id1, __u32 id2)
 	return btf_equal_array(t1, t2);
 }
 
+/* Check if given two types are identical STRUCT/UNION definitions */
+static bool btf_dedup_identical_structs(struct btf_dedup *d, __u32 id1, __u32 id2)
+{
+	const struct btf_member *m1, *m2;
+	struct btf_type *t1, *t2;
+	int n, i;
+
+	t1 = btf_type_by_id(d->btf, id1);
+	t2 = btf_type_by_id(d->btf, id2);
+
+	if (!btf_is_composite(t1) || btf_kind(t1) != btf_kind(t2))
+		return false;
+
+	if (!btf_shallow_equal_struct(t1, t2))
+		return false;
+
+	m1 = btf_members(t1);
+	m2 = btf_members(t2);
+	for (i = 0, n = btf_vlen(t1); i < n; i++, m1++, m2++) {
+		if (m1->type != m2->type)
+			return false;
+	}
+	return true;
+}
+
 /*
  * Check equivalence of BTF type graph formed by candidate struct/union (we'll
  * call it "candidate graph" in this description for brevity) to a type graph
@@ -3841,6 +3866,8 @@ static int btf_dedup_is_equiv(struct btf_dedup *d, __u32 cand_id,
 
 	hypot_type_id = d->hypot_map[canon_id];
 	if (hypot_type_id <= BTF_MAX_NR_TYPES) {
+		if (hypot_type_id == cand_id)
+			return 1;
 		/* In some cases compiler will generate different DWARF types
 		 * for *identical* array type definitions and use them for
 		 * different fields within the *same* struct. This breaks type
@@ -3849,8 +3876,18 @@ static int btf_dedup_is_equiv(struct btf_dedup *d, __u32 cand_id,
 		 * types within a single CU. So work around that by explicitly
 		 * allowing identical array types here.
 		 */
-		return hypot_type_id == cand_id ||
-		       btf_dedup_identical_arrays(d, hypot_type_id, cand_id);
+		if (btf_dedup_identical_arrays(d, hypot_type_id, cand_id))
+			return 1;
+		/* It turns out that similar situation can happen with
+		 * struct/union sometimes, sigh... Handle the case where
+		 * structs/unions are exactly the same, down to the referenced
+		 * type IDs. Anything more complicated (e.g., if referenced
+		 * types are different, but equivalent) is *way more*
+		 * complicated and requires a many-to-many equivalence mapping.
+		 */
+		if (btf_dedup_identical_structs(d, hypot_type_id, cand_id))
+			return 1;
+		return 0;
 	}
 
 	if (btf_dedup_hypot_map_add(d, canon_id, cand_id))
-- 
2.34.1

[PATCH AUTOSEL 5.15 046/188] ethernet: renesas: Use div64_ul instead of do_div

[Sasha Levin]

From: Yang Li <yang.lee@linux.alibaba.com>

[ Upstream commit d9f31aeaa1e5aefa68130878af3c3513d41c1e2d ]

do_div() does a 64-by-32 division. Here the divisor is an
unsigned long which on some platforms is 64 bit wide. So use
div64_ul instead of do_div to avoid a possible truncation.

Eliminate the following coccicheck warning:
./drivers/net/ethernet/renesas/ravb_main.c:2492:1-7: WARNING:
do_div() does a 64-by-32 division, please consider using div64_ul
instead.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/1637228883-100100-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/renesas/ravb_main.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 0f85f2d97b18d..4e08b7219403c 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -30,8 +30,7 @@
 #include <linux/spinlock.h>
 #include <linux/sys_soc.h>
 #include <linux/reset.h>
-
-#include <asm/div64.h>
+#include <linux/math64.h>
 
 #include "ravb.h"
 
@@ -2061,8 +2060,7 @@ static int ravb_set_gti(struct net_device *ndev)
 	if (!rate)
 		return -EINVAL;
 
-	inc = 1000000000ULL << 20;
-	do_div(inc, rate);
+	inc = div64_ul(1000000000ULL << 20, rate);
 
 	if (inc < GTI_TIV_MIN || inc > GTI_TIV_MAX) {
 		dev_err(dev, "gti.tiv increment 0x%llx is outside the range 0x%x - 0x%x\n",
-- 
2.34.1

[PATCH AUTOSEL 5.15 047/188] 82596: use eth_hw_addr_set()

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 0f98d7e478430b64d9520a23585e02be5f8b1b2a ]

Byte by byte assignments.

Fixes build on m68k.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/i825xx/82596.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c
index b482f6f633bd5..3ee89ae496d0c 100644
--- a/drivers/net/ethernet/i825xx/82596.c
+++ b/drivers/net/ethernet/i825xx/82596.c
@@ -1178,7 +1178,8 @@ static struct net_device * __init i82596_probe(void)
 	DEB(DEB_PROBE,printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
 
 	for (i = 0; i < 6; i++)
-		DEB(DEB_PROBE,printk(" %2.2X", dev->dev_addr[i] = eth_addr[i]));
+		DEB(DEB_PROBE,printk(" %2.2X", eth_addr[i]));
+	eth_hw_addr_set(dev, eth_addr);
 
 	DEB(DEB_PROBE,printk(" IRQ %d.\n", dev->irq));
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 055/188] mlxsw: pci: Add shutdown method in PCI driver

[Sasha Levin]

From: Danielle Ratson <danieller@nvidia.com>

[ Upstream commit c1020d3cf4752f61a6a413f632ea2ce2370e150d ]

On an arm64 platform with the Spectrum ASIC, after loading and executing
a new kernel via kexec, the following trace [1] is observed. This seems
to be caused by the fact that the device is not properly shutdown before
executing the new kernel.

Fix this by implementing a shutdown method which mirrors the remove
method, as recommended by the kexec maintainer [2][3].

[1]
BUG: Bad page state in process devlink pfn:22f73d
page:fffffe00089dcf40 refcount:-1 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x2ffff00000000000()
raw: 2ffff00000000000 0000000000000000 ffffffff089d0201 0000000000000000
raw: 0000000000000000 0000000000000000 ffffffffffffffff 0000000000000000
page dumped because: nonzero _refcount
Modules linked in:
CPU: 1 PID: 16346 Comm: devlink Tainted: G B 5.8.0-rc6-custom-273020-gac6b365b1bf5 #44
Hardware name: Marvell Armada 7040 TX4810M (DT)
Call trace:
 dump_backtrace+0x0/0x1d0
 show_stack+0x1c/0x28
 dump_stack+0xbc/0x118
 bad_page+0xcc/0xf8
 check_free_page_bad+0x80/0x88
 __free_pages_ok+0x3f8/0x418
 __free_pages+0x38/0x60
 kmem_freepages+0x200/0x2a8
 slab_destroy+0x28/0x68
 slabs_destroy+0x60/0x90
 ___cache_free+0x1b4/0x358
 kfree+0xc0/0x1d0
 skb_free_head+0x2c/0x38
 skb_release_data+0x110/0x1a0
 skb_release_all+0x2c/0x38
 consume_skb+0x38/0x130
 __dev_kfree_skb_any+0x44/0x50
 mlxsw_pci_rdq_fini+0x8c/0xb0
 mlxsw_pci_queue_fini.isra.0+0x28/0x58
 mlxsw_pci_queue_group_fini+0x58/0x88
 mlxsw_pci_aqs_fini+0x2c/0x60
 mlxsw_pci_fini+0x34/0x50
 mlxsw_core_bus_device_unregister+0x104/0x1d0
 mlxsw_devlink_core_bus_device_reload_down+0x2c/0x48
 devlink_reload+0x44/0x158
 devlink_nl_cmd_reload+0x270/0x290
 genl_rcv_msg+0x188/0x2f0
 netlink_rcv_skb+0x5c/0x118
 genl_rcv+0x3c/0x50
 netlink_unicast+0x1bc/0x278
 netlink_sendmsg+0x194/0x390
 __sys_sendto+0xe0/0x158
 __arm64_sys_sendto+0x2c/0x38
 el0_svc_common.constprop.0+0x70/0x168
 do_el0_svc+0x28/0x88
 el0_sync_handler+0x88/0x190
 el0_sync+0x140/0x180

[2]
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1195432.html

[3]
https://patchwork.kernel.org/project/linux-scsi/patch/20170212214920.28866-1-anton@ozlabs.org/#20116693

Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index fcace73eae40f..01c3235ab2bdf 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -1973,6 +1973,7 @@ int mlxsw_pci_driver_register(struct pci_driver *pci_driver)
 {
 	pci_driver->probe = mlxsw_pci_probe;
 	pci_driver->remove = mlxsw_pci_remove;
+	pci_driver->shutdown = mlxsw_pci_remove;
 	return pci_register_driver(pci_driver);
 }
 EXPORT_SYMBOL(mlxsw_pci_driver_register);
-- 
2.34.1

[PATCH AUTOSEL 5.15 063/188] rtw88: add quirk to disable pci caps on HP 250 G7 Notebook PC

[Sasha Levin]

From: Ping-Ke Shih <pkshih@realtek.com>

[ Upstream commit c81edb8dddaa36c4defa26240cc19127f147283f ]

8821CE causes random freezes on HP 250 G7 Notebook PC. Add a quirk
to disable pci ASPM capability.

Reported-by: rtl8821cerfe2 <rtl8821cerfe2@protonmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211119052437.8671-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw88/pci.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
index a7a6ebfaa203c..3b367c9085eba 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.c
+++ b/drivers/net/wireless/realtek/rtw88/pci.c
@@ -1738,6 +1738,15 @@ static const struct dmi_system_id rtw88_pci_quirks[] = {
 		},
 		.driver_data = (void *)BIT(QUIRK_DIS_PCI_CAP_ASPM),
 	},
+	{
+		.callback = disable_pci_caps,
+		.ident = "HP HP 250 G7 Notebook PC",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "HP 250 G7 Notebook PC"),
+		},
+		.driver_data = (void *)BIT(QUIRK_DIS_PCI_CAP_ASPM),
+	},
 	{}
 };
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 064/188] mwifiex: Fix skb_over_panic in mwifiex_usb_recv()

[Sasha Levin]

From: Zekun Shen <bruceshenzk@gmail.com>

[ Upstream commit 04d80663f67ccef893061b49ec8a42ff7045ae84 ]

Currently, with an unknown recv_type, mwifiex_usb_recv
just return -1 without restoring the skb. Next time
mwifiex_usb_rx_complete is invoked with the same skb,
calling skb_put causes skb_over_panic.

The bug is triggerable with a compromised/malfunctioning
usb device. After applying the patch, skb_over_panic
no longer shows up with the same input.

Attached is the panic report from fuzzing.
skbuff: skb_over_panic: text:000000003bf1b5fa
 len:2048 put:4 head:00000000dd6a115b data:000000000a9445d8
 tail:0x844 end:0x840 dev:<NULL>
kernel BUG at net/core/skbuff.c:109!
invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 PID: 198 Comm: in:imklog Not tainted 5.6.0 #60
RIP: 0010:skb_panic+0x15f/0x161
Call Trace:
 <IRQ>
 ? mwifiex_usb_rx_complete+0x26b/0xfcd [mwifiex_usb]
 skb_put.cold+0x24/0x24
 mwifiex_usb_rx_complete+0x26b/0xfcd [mwifiex_usb]
 __usb_hcd_giveback_urb+0x1e4/0x380
 usb_giveback_urb_bh+0x241/0x4f0
 ? __hrtimer_run_queues+0x316/0x740
 ? __usb_hcd_giveback_urb+0x380/0x380
 tasklet_action_common.isra.0+0x135/0x330
 __do_softirq+0x18c/0x634
 irq_exit+0x114/0x140
 smp_apic_timer_interrupt+0xde/0x380
 apic_timer_interrupt+0xf/0x20
 </IRQ>

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YX4CqjfRcTa6bVL+@Zekuns-MBP-16.fios-router.home
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwifiex/usb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/usb.c b/drivers/net/wireless/marvell/mwifiex/usb.c
index 9736aa0ab7fd4..8f01fcbe93961 100644
--- a/drivers/net/wireless/marvell/mwifiex/usb.c
+++ b/drivers/net/wireless/marvell/mwifiex/usb.c
@@ -130,7 +130,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
 		default:
 			mwifiex_dbg(adapter, ERROR,
 				    "unknown recv_type %#x\n", recv_type);
-			return -1;
+			ret = -1;
+			goto exit_restore_skb;
 		}
 		break;
 	case MWIFIEX_USB_EP_DATA:
-- 
2.34.1

[PATCH AUTOSEL 5.15 065/188] rsi: Fix use-after-free in rsi_rx_done_handler()

[Sasha Levin]

From: Zekun Shen <bruceshenzk@gmail.com>

[ Upstream commit b07e3c6ebc0c20c772c0f54042e430acec2945c3 ]

When freeing rx_cb->rx_skb, the pointer is not set to NULL,
a later rsi_rx_done_handler call will try to read the freed
address.
This bug will very likley lead to double free, although
detected early as use-after-free bug.

The bug is triggerable with a compromised/malfunctional usb
device. After applying the patch, the same input no longer
triggers the use-after-free.

Attached is the kasan report from fuzzing.

BUG: KASAN: use-after-free in rsi_rx_done_handler+0x354/0x430 [rsi_usb]
Read of size 4 at addr ffff8880188e5930 by task modprobe/231
Call Trace:
 <IRQ>
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 ? rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 __kasan_report.cold+0x37/0x7c
 ? dma_direct_unmap_page+0x90/0x110
 ? rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 kasan_report+0xe/0x20
 rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 __usb_hcd_giveback_urb+0x1e4/0x380
 usb_giveback_urb_bh+0x241/0x4f0
 ? __usb_hcd_giveback_urb+0x380/0x380
 ? apic_timer_interrupt+0xa/0x20
 tasklet_action_common.isra.0+0x135/0x330
 __do_softirq+0x18c/0x634
 ? handle_irq_event+0xcd/0x157
 ? handle_edge_irq+0x1eb/0x7b0
 irq_exit+0x114/0x140
 do_IRQ+0x91/0x1e0
 common_interrupt+0xf/0xf
 </IRQ>

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXxQL/vIiYcZUu/j@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/rsi/rsi_91x_usb.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 6821ea9918956..3cca1823c458a 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -269,8 +269,12 @@ static void rsi_rx_done_handler(struct urb *urb)
 	struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)rx_cb->data;
 	int status = -EINVAL;
 
+	if (!rx_cb->rx_skb)
+		return;
+
 	if (urb->status) {
 		dev_kfree_skb(rx_cb->rx_skb);
+		rx_cb->rx_skb = NULL;
 		return;
 	}
 
@@ -294,8 +298,10 @@ static void rsi_rx_done_handler(struct urb *urb)
 	if (rsi_rx_urb_submit(dev->priv, rx_cb->ep_num, GFP_ATOMIC))
 		rsi_dbg(ERR_ZONE, "%s: Failed in urb submission", __func__);
 
-	if (status)
+	if (status) {
 		dev_kfree_skb(rx_cb->rx_skb);
+		rx_cb->rx_skb = NULL;
+	}
 }
 
 static void rsi_rx_urb_kill(struct rsi_hw *adapter, u8 ep_num)
-- 
2.34.1

[PATCH AUTOSEL 5.15 066/188] rsi: Fix out-of-bounds read in rsi_read_pkt()

[Sasha Levin]

From: Zekun Shen <bruceshenzk@gmail.com>

[ Upstream commit f1cb3476e48b60c450ec3a1d7da0805bffc6e43a ]

rsi_get_* functions rely on an offset variable from usb
input. The size of usb input is RSI_MAX_RX_USB_PKT_SIZE(3000),
while 2-byte offset can be up to 0xFFFF. Thus a large offset
can cause out-of-bounds read.

The patch adds a bound checking condition when rcv_pkt_len is 0,
indicating it's USB. It's unclear whether this is triggerable
from other type of bus. The following check might help in that case.
offset > rcv_pkt_len - FRAME_DESC_SZ

The bug is trigerrable with conpromised/malfunctioning USB devices.
I tested the patch with the crashing input and got no more bug report.

Attached is the KASAN report from fuzzing.

BUG: KASAN: slab-out-of-bounds in rsi_read_pkt+0x42e/0x500 [rsi_91x]
Read of size 2 at addr ffff888019439fdb by task RX-Thread/227

CPU: 0 PID: 227 Comm: RX-Thread Not tainted 5.6.0 #66
Call Trace:
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? rsi_read_pkt+0x42e/0x500 [rsi_91x]
 ? rsi_read_pkt+0x42e/0x500 [rsi_91x]
 __kasan_report.cold+0x37/0x7c
 ? rsi_read_pkt+0x42e/0x500 [rsi_91x]
 kasan_report+0xe/0x20
 rsi_read_pkt+0x42e/0x500 [rsi_91x]
 rsi_usb_rx_thread+0x1b1/0x2fc [rsi_usb]
 ? rsi_probe+0x16a0/0x16a0 [rsi_usb]
 ? _raw_spin_lock_irqsave+0x7b/0xd0
 ? _raw_spin_trylock_bh+0x120/0x120
 ? __wake_up_common+0x10b/0x520
 ? rsi_probe+0x16a0/0x16a0 [rsi_usb]
 kthread+0x2b5/0x3b0
 ? kthread_create_on_node+0xd0/0xd0
 ret_from_fork+0x22/0x40

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXxXS4wgu2OsmlVv@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/rsi/rsi_91x_main.c | 4 ++++
 drivers/net/wireless/rsi/rsi_91x_usb.c  | 1 -
 drivers/net/wireless/rsi/rsi_usb.h      | 2 ++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_main.c b/drivers/net/wireless/rsi/rsi_91x_main.c
index f1bf71e6c6081..5d1490fc32db4 100644
--- a/drivers/net/wireless/rsi/rsi_91x_main.c
+++ b/drivers/net/wireless/rsi/rsi_91x_main.c
@@ -23,6 +23,7 @@
 #include "rsi_common.h"
 #include "rsi_coex.h"
 #include "rsi_hal.h"
+#include "rsi_usb.h"
 
 u32 rsi_zone_enabled = /* INFO_ZONE |
 			INIT_ZONE |
@@ -168,6 +169,9 @@ int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len)
 		frame_desc = &rx_pkt[index];
 		actual_length = *(u16 *)&frame_desc[0];
 		offset = *(u16 *)&frame_desc[2];
+		if (!rcv_pkt_len && offset >
+			RSI_MAX_RX_USB_PKT_SIZE - FRAME_DESC_SZ)
+			goto fail;
 
 		queueno = rsi_get_queueno(frame_desc, offset);
 		length = rsi_get_length(frame_desc, offset);
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 3cca1823c458a..66fe386ec9cc6 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -330,7 +330,6 @@ static int rsi_rx_urb_submit(struct rsi_hw *adapter, u8 ep_num, gfp_t mem_flags)
 	struct sk_buff *skb;
 	u8 dword_align_bytes = 0;
 
-#define RSI_MAX_RX_USB_PKT_SIZE	3000
 	skb = dev_alloc_skb(RSI_MAX_RX_USB_PKT_SIZE);
 	if (!skb)
 		return -ENOMEM;
diff --git a/drivers/net/wireless/rsi/rsi_usb.h b/drivers/net/wireless/rsi/rsi_usb.h
index 254d19b664123..961851748bc4c 100644
--- a/drivers/net/wireless/rsi/rsi_usb.h
+++ b/drivers/net/wireless/rsi/rsi_usb.h
@@ -44,6 +44,8 @@
 #define RSI_USB_BUF_SIZE	     4096
 #define RSI_USB_CTRL_BUF_SIZE	     0x04
 
+#define RSI_MAX_RX_USB_PKT_SIZE	3000
+
 struct rx_usb_ctrl_block {
 	u8 *data;
 	struct urb *rx_urb;
-- 
2.34.1

[PATCH AUTOSEL 5.15 067/188] ath11k: Avoid NULL ptr access during mgmt tx cleanup

[Sasha Levin]

From: Sriram R <quic_srirrama@quicinc.com>

[ Upstream commit a93789ae541c7d5c1c2a4942013adb6bcc5e2848 ]

Currently 'ar' reference is not added in skb_cb during
WMI mgmt tx. Though this is generally not used during tx completion
callbacks, on interface removal the remaining idr cleanup callback
uses the ar ptr from skb_cb from mgmt txmgmt_idr. Hence
fill them during tx call for proper usage.

Also free the skb which is missing currently in these
callbacks.

Crash_info:

[19282.489476] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[19282.489515] pgd = 91eb8000
[19282.496702] [00000000] *pgd=00000000
[19282.502524] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[19282.783728] PC is at ath11k_mac_vif_txmgmt_idr_remove+0x28/0xd8 [ath11k]
[19282.789170] LR is at idr_for_each+0xa0/0xc8

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00729-QCAHKSWPL_SILICONZ-3 v2
Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1637832614-13831-1-git-send-email-quic_srirrama@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 35 +++++++++++++++------------
 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 89a64ebd620f3..8ea851013bb7a 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <net/mac80211.h>
@@ -4131,23 +4132,32 @@ static int __ath11k_set_antenna(struct ath11k *ar, u32 tx_ant, u32 rx_ant)
 	return 0;
 }
 
-int ath11k_mac_tx_mgmt_pending_free(int buf_id, void *skb, void *ctx)
+static void ath11k_mac_tx_mgmt_free(struct ath11k *ar, int buf_id)
 {
-	struct sk_buff *msdu = skb;
+	struct sk_buff *msdu;
 	struct ieee80211_tx_info *info;
-	struct ath11k *ar = ctx;
-	struct ath11k_base *ab = ar->ab;
 
 	spin_lock_bh(&ar->txmgmt_idr_lock);
-	idr_remove(&ar->txmgmt_idr, buf_id);
+	msdu = idr_remove(&ar->txmgmt_idr, buf_id);
 	spin_unlock_bh(&ar->txmgmt_idr_lock);
-	dma_unmap_single(ab->dev, ATH11K_SKB_CB(msdu)->paddr, msdu->len,
+
+	if (!msdu)
+		return;
+
+	dma_unmap_single(ar->ab->dev, ATH11K_SKB_CB(msdu)->paddr, msdu->len,
 			 DMA_TO_DEVICE);
 
 	info = IEEE80211_SKB_CB(msdu);
 	memset(&info->status, 0, sizeof(info->status));
 
 	ieee80211_free_txskb(ar->hw, msdu);
+}
+
+int ath11k_mac_tx_mgmt_pending_free(int buf_id, void *skb, void *ctx)
+{
+	struct ath11k *ar = ctx;
+
+	ath11k_mac_tx_mgmt_free(ar, buf_id);
 
 	return 0;
 }
@@ -4156,17 +4166,10 @@ static int ath11k_mac_vif_txmgmt_idr_remove(int buf_id, void *skb, void *ctx)
 {
 	struct ieee80211_vif *vif = ctx;
 	struct ath11k_skb_cb *skb_cb = ATH11K_SKB_CB((struct sk_buff *)skb);
-	struct sk_buff *msdu = skb;
 	struct ath11k *ar = skb_cb->ar;
-	struct ath11k_base *ab = ar->ab;
 
-	if (skb_cb->vif == vif) {
-		spin_lock_bh(&ar->txmgmt_idr_lock);
-		idr_remove(&ar->txmgmt_idr, buf_id);
-		spin_unlock_bh(&ar->txmgmt_idr_lock);
-		dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len,
-				 DMA_TO_DEVICE);
-	}
+	if (skb_cb->vif == vif)
+		ath11k_mac_tx_mgmt_free(ar, buf_id);
 
 	return 0;
 }
@@ -4181,6 +4184,8 @@ static int ath11k_mac_mgmt_tx_wmi(struct ath11k *ar, struct ath11k_vif *arvif,
 	int buf_id;
 	int ret;
 
+	ATH11K_SKB_CB(skb)->ar = ar;
+
 	spin_lock_bh(&ar->txmgmt_idr_lock);
 	buf_id = idr_alloc(&ar->txmgmt_idr, skb, 0,
 			   ATH11K_TX_MGMT_NUM_PENDING_MAX, GFP_ATOMIC);
-- 
2.34.1

[PATCH AUTOSEL 5.15 090/188] iwlwifi: mvm: synchronize with FW after multicast commands

[Sasha Levin]

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit db66abeea3aefed481391ecc564fb7b7fb31d742 ]

If userspace installs a lot of multicast groups very quickly, then
we may run out of command queue space as we send the updates in an
asynchronous fashion (due to locking concerns), and the CPU can
create them faster than the firmware can process them. This is true
even when mac80211 has a work struct that gets scheduled.

Fix this by synchronizing with the firmware after sending all those
commands - outside of the iteration we can send a synchronous echo
command that just has the effect of the CPU waiting for the prior
asynchronous commands to finish. This also will cause fewer of the
commands to be sent to the firmware overall, because the work will
only run once when rescheduled multiple times while it's running.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=213649
Suggested-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reported-by: Maximilian Ernestus <maximilian@ernestus.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204083238.51aea5b79ea4.I88a44798efda16e9fe480fb3e94224931d311b29@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 7e5ad943b20cb..750217393f480 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1687,6 +1687,7 @@ static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
 	struct iwl_mvm_mc_iter_data iter_data = {
 		.mvm = mvm,
 	};
+	int ret;
 
 	lockdep_assert_held(&mvm->mutex);
 
@@ -1696,6 +1697,22 @@ static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
 	ieee80211_iterate_active_interfaces_atomic(
 		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 		iwl_mvm_mc_iface_iterator, &iter_data);
+
+	/*
+	 * Send a (synchronous) ech command so that we wait for the
+	 * multiple asynchronous MCAST_FILTER_CMD commands sent by
+	 * the interface iterator. Otherwise, we might get here over
+	 * and over again (by userspace just sending a lot of these)
+	 * and the CPU can send them faster than the firmware can
+	 * process them.
+	 * Note that the CPU is still faster - but with this we'll
+	 * actually send fewer commands overall because the CPU will
+	 * not schedule the work in mac80211 as frequently if it's
+	 * still running when rescheduled (possibly multiple times).
+	 */
+	ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
+	if (ret)
+		IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
 }
 
 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
-- 
2.34.1

[PATCH AUTOSEL 5.15 091/188] iwlwifi: mvm: avoid clearing a just saved session protection id

[Sasha Levin]

From: Shaul Triebitz <shaul.triebitz@intel.com>

[ Upstream commit 8e967c137df3b236d2075f9538cb888129425d1a ]

When scheduling a session protection the id is saved but
then it may be cleared when calling iwl_mvm_te_clear_data
(if a previous session protection is currently active).
Fix it by saving the id after calling iwl_mvm_te_clear_data.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204130722.b0743a588d14.I098fef6677d0dab3ef1b6183ed206a10bab01eb2@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/time-event.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index e91f8e889df70..e6813317edf35 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -1158,15 +1158,10 @@ void iwl_mvm_schedule_session_protection(struct iwl_mvm *mvm,
 			cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 							mvmvif->color)),
 		.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
+		.conf_id = cpu_to_le32(SESSION_PROTECT_CONF_ASSOC),
 		.duration_tu = cpu_to_le32(MSEC_TO_TU(duration)),
 	};
 
-	/* The time_event_data.id field is reused to save session
-	 * protection's configuration.
-	 */
-	mvmvif->time_event_data.id = SESSION_PROTECT_CONF_ASSOC;
-	cmd.conf_id = cpu_to_le32(mvmvif->time_event_data.id);
-
 	lockdep_assert_held(&mvm->mutex);
 
 	spin_lock_bh(&mvm->time_event_lock);
@@ -1180,6 +1175,11 @@ void iwl_mvm_schedule_session_protection(struct iwl_mvm *mvm,
 	}
 
 	iwl_mvm_te_clear_data(mvm, te_data);
+	/*
+	 * The time_event_data.id field is reused to save session
+	 * protection's configuration.
+	 */
+	te_data->id = le32_to_cpu(cmd.conf_id);
 	te_data->duration = le32_to_cpu(cmd.duration_tu);
 	te_data->vif = vif;
 	spin_unlock_bh(&mvm->time_event_lock);
-- 
2.34.1

[PATCH AUTOSEL 5.15 093/188] net: dsa: ocelot: felix: Remove requirement for PCS in felix devices

[Sasha Levin]

From: Colin Foster <colin.foster@in-advantage.com>

[ Upstream commit 49af6a7620c53b779572abfbfd7778e113154330 ]

Existing felix devices all have an initialized pcs array. Future devices
might not, so running a NULL check on the array before dereferencing it
will allow those future drivers to not crash at this point

Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/ocelot/felix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 1513dfb523de7..20338d5fa9170 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -823,7 +823,7 @@ static void felix_phylink_mac_config(struct dsa_switch *ds, int port,
 	struct felix *felix = ocelot_to_felix(ocelot);
 	struct dsa_port *dp = dsa_to_port(ds, port);
 
-	if (felix->pcs[port])
+	if (felix->pcs && felix->pcs[port])
 		phylink_set_pcs(dp->pl, &felix->pcs[port]->pcs);
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 094/188] ath11k: avoid deadlock by change ieee80211_queue_work for regd_update_work

[Sasha Levin]

From: Wen Gong <quic_wgong@quicinc.com>

[ Upstream commit ed05c7cf1286d7e31e7623bce55ff135723591bf ]

When enable debug config, it print below warning while shut down wlan
interface shuh as run "ifconfig wlan0 down".

The reason is because ar->regd_update_work is ran once, and it is will
call wiphy_lock(ar->hw->wiphy) in function ath11k_regd_update() which
is running in workqueue of ieee80211_local queued by ieee80211_queue_work().
Another thread from "ifconfig wlan0 down" will also accuqire the lock
by wiphy_lock(sdata->local->hw.wiphy) in function ieee80211_stop(), and
then it call ieee80211_stop_device() to flush_workqueue(local->workqueue),
this will wait the workqueue of ieee80211_local finished. Then deadlock
will happen easily if the two thread run meanwhile.

Below warning disappeared after this change.

[  914.088798] ath11k_pci 0000:05:00.0: mac remove interface (vdev 0)
[  914.088806] ath11k_pci 0000:05:00.0: mac stop 11d scan
[  914.088810] ath11k_pci 0000:05:00.0: mac stop 11d vdev id 0
[  914.088827] ath11k_pci 0000:05:00.0: htc ep 2 consumed 1 credits (total 0)
[  914.088841] ath11k_pci 0000:05:00.0: send 11d scan stop vdev id 0
[  914.088849] ath11k_pci 0000:05:00.0: htc insufficient credits ep 2 required 1 available 0
[  914.088856] ath11k_pci 0000:05:00.0: htc insufficient credits ep 2 required 1 available 0
[  914.096434] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 16
[  914.096442] ath11k_pci 0000:05:00.0: htc ep 2 got 1 credits (total 1)
[  914.096481] ath11k_pci 0000:05:00.0: htc ep 2 consumed 1 credits (total 0)
[  914.096491] ath11k_pci 0000:05:00.0: WMI vdev delete id 0
[  914.111598] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 16
[  914.111628] ath11k_pci 0000:05:00.0: htc ep 2 got 1 credits (total 1)
[  914.114659] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 20
[  914.114742] ath11k_pci 0000:05:00.0: htc rx completion ep 2 skb         pK-error
[  914.115977] ath11k_pci 0000:05:00.0: vdev delete resp for vdev id 0
[  914.116685] ath11k_pci 0000:05:00.0: vdev 00:03:7f:29:61:11 deleted, vdev_id 0

[  914.117583] ======================================================
[  914.117592] WARNING: possible circular locking dependency detected
[  914.117600] 5.16.0-rc1-wt-ath+ #1 Tainted: G           OE
[  914.117611] ------------------------------------------------------
[  914.117618] ifconfig/2805 is trying to acquire lock:
[  914.117628] ffff9c00a62bb548 ((wq_completion)phy0){+.+.}-{0:0}, at: flush_workqueue+0x87/0x470
[  914.117674]
               but task is already holding lock:
[  914.117682] ffff9c00baea07d0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_stop+0x38/0x180 [mac80211]
[  914.117872]
               which lock already depends on the new lock.

[  914.117880]
               the existing dependency chain (in reverse order) is:
[  914.117888]
               -> #3 (&rdev->wiphy.mtx){+.+.}-{4:4}:
[  914.117910]        __mutex_lock+0xa0/0x9c0
[  914.117930]        mutex_lock_nested+0x1b/0x20
[  914.117944]        reg_process_self_managed_hints+0x3a/0xb0 [cfg80211]
[  914.118093]        wiphy_regulatory_register+0x47/0x80 [cfg80211]
[  914.118229]        wiphy_register+0x84f/0x9c0 [cfg80211]
[  914.118353]        ieee80211_register_hw+0x6b1/0xd90 [mac80211]
[  914.118486]        ath11k_mac_register+0x6af/0xb60 [ath11k]
[  914.118550]        ath11k_core_qmi_firmware_ready+0x383/0x4a0 [ath11k]
[  914.118598]        ath11k_qmi_driver_event_work+0x347/0x4a0 [ath11k]
[  914.118656]        process_one_work+0x228/0x670
[  914.118669]        worker_thread+0x4d/0x440
[  914.118680]        kthread+0x16d/0x1b0
[  914.118697]        ret_from_fork+0x22/0x30
[  914.118714]
               -> #2 (rtnl_mutex){+.+.}-{4:4}:
[  914.118736]        __mutex_lock+0xa0/0x9c0
[  914.118751]        mutex_lock_nested+0x1b/0x20
[  914.118767]        rtnl_lock+0x17/0x20
[  914.118783]        ath11k_regd_update+0x15a/0x260 [ath11k]
[  914.118841]        ath11k_regd_update_work+0x15/0x20 [ath11k]
[  914.118897]        process_one_work+0x228/0x670
[  914.118909]        worker_thread+0x4d/0x440
[  914.118920]        kthread+0x16d/0x1b0
[  914.118934]        ret_from_fork+0x22/0x30
[  914.118948]
               -> #1 ((work_completion)(&ar->regd_update_work)){+.+.}-{0:0}:
[  914.118972]        process_one_work+0x1fa/0x670
[  914.118984]        worker_thread+0x4d/0x440
[  914.118996]        kthread+0x16d/0x1b0
[  914.119010]        ret_from_fork+0x22/0x30
[  914.119023]
               -> #0 ((wq_completion)phy0){+.+.}-{0:0}:
[  914.119045]        __lock_acquire+0x146d/0x1cf0
[  914.119057]        lock_acquire+0x19b/0x360
[  914.119067]        flush_workqueue+0xae/0x470
[  914.119084]        ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.119260]        ieee80211_do_stop+0x5d7/0x830 [mac80211]
[  914.119409]        ieee80211_stop+0x45/0x180 [mac80211]
[  914.119557]        __dev_close_many+0xb3/0x120
[  914.119573]        __dev_change_flags+0xc3/0x1d0
[  914.119590]        dev_change_flags+0x29/0x70
[  914.119605]        devinet_ioctl+0x653/0x810
[  914.119620]        inet_ioctl+0x193/0x1e0
[  914.119631]        sock_do_ioctl+0x4d/0xf0
[  914.119649]        sock_ioctl+0x262/0x340
[  914.119665]        __x64_sys_ioctl+0x96/0xd0
[  914.119678]        do_syscall_64+0x3d/0xd0
[  914.119694]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  914.119709]
               other info that might help us debug this:

[  914.119717] Chain exists of:
                 (wq_completion)phy0 --> rtnl_mutex --> &rdev->wiphy.mtx

[  914.119745]  Possible unsafe locking scenario:

[  914.119752]        CPU0                    CPU1
[  914.119758]        ----                    ----
[  914.119765]   lock(&rdev->wiphy.mtx);
[  914.119778]                                lock(rtnl_mutex);
[  914.119792]                                lock(&rdev->wiphy.mtx);
[  914.119807]   lock((wq_completion)phy0);
[  914.119819]
                *** DEADLOCK ***

[  914.119827] 2 locks held by ifconfig/2805:
[  914.119837]  #0: ffffffffba3dc010 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x17/0x20
[  914.119872]  #1: ffff9c00baea07d0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_stop+0x38/0x180 [mac80211]
[  914.120039]
               stack backtrace:
[  914.120048] CPU: 0 PID: 2805 Comm: ifconfig Tainted: G           OE     5.16.0-rc1-wt-ath+ #1
[  914.120064] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW (1.33 ) 07/29/2011
[  914.120074] Call Trace:
[  914.120084]  <TASK>
[  914.120094]  dump_stack_lvl+0x73/0xa4
[  914.120119]  dump_stack+0x10/0x12
[  914.120135]  print_circular_bug.isra.44+0x221/0x2e0
[  914.120165]  check_noncircular+0x106/0x150
[  914.120203]  __lock_acquire+0x146d/0x1cf0
[  914.120215]  ? __lock_acquire+0x146d/0x1cf0
[  914.120245]  lock_acquire+0x19b/0x360
[  914.120259]  ? flush_workqueue+0x87/0x470
[  914.120286]  ? lockdep_init_map_type+0x6b/0x250
[  914.120310]  flush_workqueue+0xae/0x470
[  914.120327]  ? flush_workqueue+0x87/0x470
[  914.120344]  ? lockdep_hardirqs_on+0xd7/0x150
[  914.120391]  ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.120565]  ? ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.120736]  ieee80211_do_stop+0x5d7/0x830 [mac80211]
[  914.120906]  ieee80211_stop+0x45/0x180 [mac80211]
[  914.121060]  __dev_close_many+0xb3/0x120
[  914.121081]  __dev_change_flags+0xc3/0x1d0
[  914.121109]  dev_change_flags+0x29/0x70
[  914.121131]  devinet_ioctl+0x653/0x810
[  914.121149]  ? __might_fault+0x77/0x80
[  914.121179]  inet_ioctl+0x193/0x1e0
[  914.121194]  ? inet_ioctl+0x193/0x1e0
[  914.121218]  ? __might_fault+0x77/0x80
[  914.121238]  ? _copy_to_user+0x68/0x80
[  914.121266]  sock_do_ioctl+0x4d/0xf0
[  914.121283]  ? inet_stream_connect+0x60/0x60
[  914.121297]  ? sock_do_ioctl+0x4d/0xf0
[  914.121329]  sock_ioctl+0x262/0x340
[  914.121347]  ? sock_ioctl+0x262/0x340
[  914.121362]  ? exit_to_user_mode_prepare+0x13b/0x280
[  914.121388]  ? syscall_enter_from_user_mode+0x20/0x50
[  914.121416]  __x64_sys_ioctl+0x96/0xd0
[  914.121430]  ? br_ioctl_call+0x90/0x90
[  914.121445]  ? __x64_sys_ioctl+0x96/0xd0
[  914.121465]  do_syscall_64+0x3d/0xd0
[  914.121482]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  914.121497] RIP: 0033:0x7f0ed051737b
[  914.121513] Code: 0f 1e fa 48 8b 05 15 3b 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 3a 0d 00 f7 d8 64 89 01 48
[  914.121527] RSP: 002b:00007fff7be38b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[  914.121544] RAX: ffffffffffffffda RBX: 00007fff7be38ba0 RCX: 00007f0ed051737b
[  914.121555] RDX: 00007fff7be38ba0 RSI: 0000000000008914 RDI: 0000000000000004
[  914.121566] RBP: 00007fff7be38c60 R08: 000000000000000a R09: 0000000000000001
[  914.121576] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000fffffffe
[  914.121586] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000
[  914.121620]  </TASK>

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211201071745.17746-2-quic_wgong@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 99c0b81e496bf..cd86e25636884 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5852,7 +5852,7 @@ static int ath11k_reg_chan_list_event(struct ath11k_base *ab, struct sk_buff *sk
 		ar = ab->pdevs[pdev_idx].ar;
 		kfree(ab->new_regd[pdev_idx]);
 		ab->new_regd[pdev_idx] = regd;
-		ieee80211_queue_work(ar->hw, &ar->regd_update_work);
+		queue_work(ab->workqueue, &ar->regd_update_work);
 	} else {
 		/* This regd would be applied during mac registration and is
 		 * held constant throughout for regd intersection purpose
-- 
2.34.1

[PATCH AUTOSEL 5.15 095/188] ath10k: Fix tx hanging

[Sasha Levin]

From: Sebastian Gottschall <s.gottschall@dd-wrt.com>

[ Upstream commit e8a91863eba3966a447d2daa1526082d52b5db2a ]

While running stress tests in roaming scenarios (switching ap's every 5
seconds, we discovered a issue which leads to tx hangings of exactly 5
seconds while or after scanning for new accesspoints. We found out that
this hanging is triggered by ath10k_mac_wait_tx_complete since the
empty_tx_wq was not wake when the num_tx_pending counter reaches zero.
To fix this, we simply move the wake_up call to htt_tx_dec_pending,
since this call was missed on several locations within the ath10k code.

Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20210505085806.11474-1-s.gottschall@dd-wrt.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/htt_tx.c | 3 +++
 drivers/net/wireless/ath/ath10k/txrx.c   | 2 --
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index d6b8bdcef4160..b793eac2cfac8 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -147,6 +147,9 @@ void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
 	htt->num_pending_tx--;
 	if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
 		ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
+
+	if (htt->num_pending_tx == 0)
+		wake_up(&htt->empty_tx_wq);
 }
 
 int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index 7c9ea0c073d8b..6f8b642188941 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -82,8 +82,6 @@ int ath10k_txrx_tx_unref(struct ath10k_htt *htt,
 	flags = skb_cb->flags;
 	ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id);
 	ath10k_htt_tx_dec_pending(htt);
-	if (htt->num_pending_tx == 0)
-		wake_up(&htt->empty_tx_wq);
 	spin_unlock_bh(&htt->tx_lock);
 
 	rcu_read_lock();
-- 
2.34.1

[PATCH AUTOSEL 5.15 096/188] net-sysfs: update the queue counts in the unregistration path

[Sasha Levin]

From: Antoine Tenart <atenart@kernel.org>

[ Upstream commit d7dac083414eb5bb99a6d2ed53dc2c1b405224e5 ]

When updating Rx and Tx queue kobjects, the queue count should always be
updated to match the queue kobjects count. This was not done in the net
device unregistration path, fix it. Tracking all queue count updates
will allow in a following up patch to detect illegal updates.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/net-sysfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index dfa5ecff7f738..a4ae652633844 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1820,6 +1820,9 @@ static void remove_queue_kobjects(struct net_device *dev)
 
 	net_rx_queue_update_kobjects(dev, real_rx, 0);
 	netdev_queue_update_kobjects(dev, real_tx, 0);
+
+	dev->real_num_rx_queues = 0;
+	dev->real_num_tx_queues = 0;
 #ifdef CONFIG_SYSFS
 	kset_unregister(dev->queues_kset);
 #endif
-- 
2.34.1

[PATCH AUTOSEL 5.15 097/188] net: phy: prefer 1000baseT over 1000baseKX

[Sasha Levin]

From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>

[ Upstream commit f20f94f7f52c4685c81754f489ffcc72186e8bdb ]

The PHY settings table is supposed to be sorted by descending match
priority - in other words, earlier entries are preferred over later
entries.

The order of 1000baseKX/Full and 1000baseT/Full is such that we
prefer 1000baseKX/Full over 1000baseT/Full, but 1000baseKX/Full is
a lot rarer than 1000baseT/Full, and thus is much less likely to
be preferred.

This causes phylink problems - it means a fixed link specifying a
speed of 1G and full duplex gets an ethtool linkmode of 1000baseKX/Full
rather than 1000baseT/Full as would be expected - and since we offer
userspace a software emulation of a conventional copper PHY, we want
to offer copper modes in preference to anything else. However, we do
still want to allow the rarer modes as well.

Hence, let's reorder these two modes to prefer copper.

Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/E1muvFO-00F6jY-1K@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phy-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c
index 2870c33b8975d..271fc01f7f7fd 100644
--- a/drivers/net/phy/phy-core.c
+++ b/drivers/net/phy/phy-core.c
@@ -162,11 +162,11 @@ static const struct phy_setting settings[] = {
 	PHY_SETTING(   2500, FULL,   2500baseT_Full		),
 	PHY_SETTING(   2500, FULL,   2500baseX_Full		),
 	/* 1G */
-	PHY_SETTING(   1000, FULL,   1000baseKX_Full		),
 	PHY_SETTING(   1000, FULL,   1000baseT_Full		),
 	PHY_SETTING(   1000, HALF,   1000baseT_Half		),
 	PHY_SETTING(   1000, FULL,   1000baseT1_Full		),
 	PHY_SETTING(   1000, FULL,   1000baseX_Full		),
+	PHY_SETTING(   1000, FULL,   1000baseKX_Full		),
 	/* 100M */
 	PHY_SETTING(    100, FULL,    100baseT_Full		),
 	PHY_SETTING(    100, FULL,    100baseT1_Full		),
-- 
2.34.1

[PATCH AUTOSEL 5.15 101/188] net: Enable neighbor sysctls that is save for userns root

[Sasha Levin]

From: xu xin <xu.xin16@zte.com.cn>

[ Upstream commit 8c8b7aa7fb0cf9e1cc9204e6bc6e1353b8393502 ]

Inside netns owned by non-init userns, sysctls about ARP/neighbor is
currently not visible and configurable.

For the attributes these sysctls correspond to, any modifications make
effects on the performance of networking(ARP, especilly) only in the
scope of netns, which does not affect other netns.

Actually, some tools via netlink can modify these attribute. iproute2 is
an example. see as follows:

$ unshare -ur -n
$ cat /proc/sys/net/ipv4/neigh/lo/retrans_time
cat: can't open '/proc/sys/net/ipv4/neigh/lo/retrans_time': No such file
or directory
$ ip ntable show dev lo
inet arp_cache
    dev lo
    refcnt 1 reachable 19494 base_reachable 30000 retrans 1000
    gc_stale 60000 delay_probe 5000 queue 101
    app_probes 0 ucast_probes 3 mcast_probes 3
    anycast_delay 1000 proxy_delay 800 proxy_queue 64 locktime 1000

inet6 ndisc_cache
    dev lo
    refcnt 1 reachable 42394 base_reachable 30000 retrans 1000
    gc_stale 60000 delay_probe 5000 queue 101
    app_probes 0 ucast_probes 3 mcast_probes 3
    anycast_delay 1000 proxy_delay 800 proxy_queue 64 locktime 0
$ ip ntable change name arp_cache dev <if> retrans 2000
inet arp_cache
    dev lo
    refcnt 1 reachable 22917 base_reachable 30000 retrans 2000
    gc_stale 60000 delay_probe 5000 queue 101
    app_probes 0 ucast_probes 3 mcast_probes 3
    anycast_delay 1000 proxy_delay 800 proxy_queue 64 locktime 1000

inet6 ndisc_cache
    dev lo
    refcnt 1 reachable 35524 base_reachable 30000 retrans 1000
    gc_stale 60000 delay_probe 5000 queue 101
    app_probes 0 ucast_probes 3 mcast_probes 3
    anycast_delay 1000 proxy_delay 800 proxy_queue 64 locktime 0

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: xu xin <xu.xin16@zte.com.cn>
Acked-by: Joanne Koong <joannekoong@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/neighbour.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index ff049733cceeb..71d5615b0e0b0 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -3687,10 +3687,6 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
 			neigh_proc_base_reachable_time;
 	}
 
-	/* Don't export sysctls to unprivileged users */
-	if (neigh_parms_net(p)->user_ns != &init_user_ns)
-		t->neigh_vars[0].procname = NULL;
-
 	switch (neigh_parms_family(p)) {
 	case AF_INET:
 	      p_name = "ipv4";
-- 
2.34.1

[PATCH AUTOSEL 5.15 102/188] ath11k: Avoid false DEADLOCK warning reported by lockdep

[Sasha Levin]

From: Baochen Qiang <quic_bqiang@quicinc.com>

[ Upstream commit 767c94caf0efad136157110787fe221b74cb5c8a ]

With CONFIG_LOCKDEP=y and CONFIG_DEBUG_SPINLOCK=y, lockdep reports
below warning:

[  166.059415] ============================================
[  166.059416] WARNING: possible recursive locking detected
[  166.059418] 5.15.0-wt-ath+ #10 Tainted: G        W  O
[  166.059420] --------------------------------------------
[  166.059421] kworker/0:2/116 is trying to acquire lock:
[  166.059423] ffff9905f2083160 (&srng->lock){+.-.}-{2:2}, at: ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059440]
               but task is already holding lock:
[  166.059442] ffff9905f2083230 (&srng->lock){+.-.}-{2:2}, at: ath11k_dp_process_reo_status+0x95/0x2d0 [ath11k]
[  166.059491]
               other info that might help us debug this:
[  166.059492]  Possible unsafe locking scenario:

[  166.059493]        CPU0
[  166.059494]        ----
[  166.059495]   lock(&srng->lock);
[  166.059498]   lock(&srng->lock);
[  166.059500]
                *** DEADLOCK ***

[  166.059501]  May be due to missing lock nesting notation

[  166.059502] 3 locks held by kworker/0:2/116:
[  166.059504]  #0: ffff9905c0081548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1f6/0x660
[  166.059511]  #1: ffff9d2400a5fe68 ((debug_obj_work).work){+.+.}-{0:0}, at: process_one_work+0x1f6/0x660
[  166.059517]  #2: ffff9905f2083230 (&srng->lock){+.-.}-{2:2}, at: ath11k_dp_process_reo_status+0x95/0x2d0 [ath11k]
[  166.059532]
               stack backtrace:
[  166.059534] CPU: 0 PID: 116 Comm: kworker/0:2 Kdump: loaded Tainted: G        W  O      5.15.0-wt-ath+ #10
[  166.059537] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0059.2019.1112.1124 11/12/2019
[  166.059539] Workqueue: events free_obj_work
[  166.059543] Call Trace:
[  166.059545]  <IRQ>
[  166.059547]  dump_stack_lvl+0x56/0x7b
[  166.059552]  __lock_acquire+0xb9a/0x1a50
[  166.059556]  lock_acquire+0x1e2/0x330
[  166.059560]  ? ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059571]  _raw_spin_lock_bh+0x33/0x70
[  166.059574]  ? ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059584]  ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059594]  ath11k_dp_tx_send_reo_cmd+0x3f/0x130 [ath11k]
[  166.059605]  ath11k_dp_rx_tid_del_func+0x221/0x370 [ath11k]
[  166.059618]  ath11k_dp_process_reo_status+0x22f/0x2d0 [ath11k]
[  166.059632]  ? ath11k_dp_service_srng+0x2ea/0x2f0 [ath11k]
[  166.059643]  ath11k_dp_service_srng+0x2ea/0x2f0 [ath11k]
[  166.059655]  ath11k_pci_ext_grp_napi_poll+0x1c/0x70 [ath11k_pci]
[  166.059659]  __napi_poll+0x28/0x230
[  166.059664]  net_rx_action+0x285/0x310
[  166.059668]  __do_softirq+0xe6/0x4d2
[  166.059672]  irq_exit_rcu+0xd2/0xf0
[  166.059675]  common_interrupt+0xa5/0xc0
[  166.059678]  </IRQ>
[  166.059679]  <TASK>
[  166.059680]  asm_common_interrupt+0x1e/0x40
[  166.059683] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70
[  166.059686] Code: 83 c7 18 e8 2a 95 43 ff 48 89 ef e8 22 d2 43 ff 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 63 2e 40 ff 65 8b 05 8c 59 97 5c 85 c0 74 0a 5b 5d c3 e8 00 6a
[  166.059689] RSP: 0018:ffff9d2400a5fca0 EFLAGS: 00000206
[  166.059692] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000006
[  166.059694] RDX: 0000000000000000 RSI: ffffffffa404879b RDI: 0000000000000001
[  166.059696] RBP: ffff9905c0053000 R08: 0000000000000001 R09: 0000000000000001
[  166.059698] R10: ffff9d2400a5fc50 R11: 0000000000000001 R12: ffffe186c41e2840
[  166.059700] R13: 0000000000000001 R14: ffff9905c78a1c68 R15: 0000000000000001
[  166.059704]  free_debug_processing+0x257/0x3d0
[  166.059708]  ? free_obj_work+0x1f5/0x250
[  166.059712]  __slab_free+0x374/0x5a0
[  166.059718]  ? kmem_cache_free+0x2e1/0x370
[  166.059721]  ? free_obj_work+0x1f5/0x250
[  166.059724]  kmem_cache_free+0x2e1/0x370
[  166.059727]  free_obj_work+0x1f5/0x250
[  166.059731]  process_one_work+0x28b/0x660
[  166.059735]  ? process_one_work+0x660/0x660
[  166.059738]  worker_thread+0x37/0x390
[  166.059741]  ? process_one_work+0x660/0x660
[  166.059743]  kthread+0x176/0x1a0
[  166.059746]  ? set_kthread_struct+0x40/0x40
[  166.059749]  ret_from_fork+0x22/0x30
[  166.059754]  </TASK>

Since these two lockes are both initialized in ath11k_hal_srng_setup,
they are assigned with the same key. As a result lockdep suspects that
the task is trying to acquire the same lock (due to same key) while
already holding it, and thus reports the DEADLOCK warning. However as
they are different spinlock instances, the warning is false positive.

On the other hand, even no dead lock indeed, this is a major issue for
upstream regression testing as it disables lockdep functionality.

Fix it by assigning separate lock class key for each srng->lock.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211209011949.151472-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/hal.c | 22 ++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/hal.h |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c
index eaa0edca55761..5dbf5596c9e8e 100644
--- a/drivers/net/wireless/ath/ath11k/hal.c
+++ b/drivers/net/wireless/ath/ath11k/hal.c
@@ -947,6 +947,7 @@ int ath11k_hal_srng_setup(struct ath11k_base *ab, enum hal_ring_type type,
 	srng->msi_data = params->msi_data;
 	srng->initialized = 1;
 	spin_lock_init(&srng->lock);
+	lockdep_set_class(&srng->lock, hal->srng_key + ring_id);
 
 	for (i = 0; i < HAL_SRNG_NUM_REG_GRP; i++) {
 		srng->hwreg_base[i] = srng_config->reg_start[i] +
@@ -1233,6 +1234,24 @@ static int ath11k_hal_srng_create_config(struct ath11k_base *ab)
 	return 0;
 }
 
+static void ath11k_hal_register_srng_key(struct ath11k_base *ab)
+{
+	struct ath11k_hal *hal = &ab->hal;
+	u32 ring_id;
+
+	for (ring_id = 0; ring_id < HAL_SRNG_RING_ID_MAX; ring_id++)
+		lockdep_register_key(hal->srng_key + ring_id);
+}
+
+static void ath11k_hal_unregister_srng_key(struct ath11k_base *ab)
+{
+	struct ath11k_hal *hal = &ab->hal;
+	u32 ring_id;
+
+	for (ring_id = 0; ring_id < HAL_SRNG_RING_ID_MAX; ring_id++)
+		lockdep_unregister_key(hal->srng_key + ring_id);
+}
+
 int ath11k_hal_srng_init(struct ath11k_base *ab)
 {
 	struct ath11k_hal *hal = &ab->hal;
@@ -1252,6 +1271,8 @@ int ath11k_hal_srng_init(struct ath11k_base *ab)
 	if (ret)
 		goto err_free_cont_rdp;
 
+	ath11k_hal_register_srng_key(ab);
+
 	return 0;
 
 err_free_cont_rdp:
@@ -1266,6 +1287,7 @@ void ath11k_hal_srng_deinit(struct ath11k_base *ab)
 {
 	struct ath11k_hal *hal = &ab->hal;
 
+	ath11k_hal_unregister_srng_key(ab);
 	ath11k_hal_free_cont_rdp(ab);
 	ath11k_hal_free_cont_wrp(ab);
 	kfree(hal->srng_config);
diff --git a/drivers/net/wireless/ath/ath11k/hal.h b/drivers/net/wireless/ath/ath11k/hal.h
index 35ed3a14e200a..7fdcd8bbf7e98 100644
--- a/drivers/net/wireless/ath/ath11k/hal.h
+++ b/drivers/net/wireless/ath/ath11k/hal.h
@@ -901,6 +901,8 @@ struct ath11k_hal {
 	/* shadow register configuration */
 	u32 shadow_reg_addr[HAL_SHADOW_NUM_REGS];
 	int num_shadow_reg_configured;
+
+	struct lock_class_key srng_key[HAL_SRNG_RING_ID_MAX];
 };
 
 u32 ath11k_hal_reo_qdesc_size(u32 ba_window_size, u8 tid);
-- 
2.34.1

[PATCH AUTOSEL 5.15 108/188] net: bonding: debug: avoid printing debug logs when bond is not notifying peers

[Sasha Levin]

From: Suresh Kumar <surkumar@redhat.com>

[ Upstream commit fee32de284ac277ba434a2d59f8ce46528ff3946 ]

Currently "bond_should_notify_peers: slave ..." messages are printed whenever
"bond_should_notify_peers" function is called.

+++
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Received LACPDU on port 1
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Rx Machine: Port=1, Last State=6, Curr State=6
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): partner sync=1
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
...
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Received LACPDU on port 2
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Rx Machine: Port=2, Last State=6, Curr State=6
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): partner sync=1
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
+++

This is confusing and can also clutter up debug logs.
Print logs only when the peer notification happens.

Signed-off-by: Suresh Kumar <suresh2514@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 77dc79a7f5748..d779fed900ffa 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1096,9 +1096,6 @@ static bool bond_should_notify_peers(struct bonding *bond)
 	slave = rcu_dereference(bond->curr_active_slave);
 	rcu_read_unlock();
 
-	netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n",
-		   slave ? slave->dev->name : "NULL");
-
 	if (!slave || !bond->send_peer_notif ||
 	    bond->send_peer_notif %
 	    max(1, bond->params.peer_notif_delay) != 0 ||
@@ -1106,6 +1103,9 @@ static bool bond_should_notify_peers(struct bonding *bond)
 	    test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state))
 		return false;
 
+	netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n",
+		   slave ? slave->dev->name : "NULL");
+
 	return true;
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 110/188] bpf: Do not WARN in bpf_warn_invalid_xdp_action()

[Sasha Levin]

From: Paolo Abeni <pabeni@redhat.com>

[ Upstream commit 2cbad989033bff0256675c38f96f5faab852af4b ]

The WARN_ONCE() in bpf_warn_invalid_xdp_action() can be triggered by
any bugged program, and even attaching a correct program to a NIC
not supporting the given action.

The resulting splat, beyond polluting the logs, fouls automated tools:
e.g. a syzkaller reproducers using an XDP program returning an
unsupported action will never pass validation.

Replace the WARN_ONCE with a less intrusive pr_warn_once().

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/016ceec56e4817ebb2a9e35ce794d5c917df572c.1638189075.git.pabeni@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/filter.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/core/filter.c b/net/core/filter.c
index 1e6831880d1fd..96dfae85c9ace 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -8176,9 +8176,9 @@ void bpf_warn_invalid_xdp_action(u32 act)
 {
 	const u32 act_max = XDP_REDIRECT;
 
-	WARN_ONCE(1, "%s XDP return value %u, expect packet loss!\n",
-		  act > act_max ? "Illegal" : "Driver unsupported",
-		  act);
+	pr_warn_once("%s XDP return value %u, expect packet loss!\n",
+		     act > act_max ? "Illegal" : "Driver unsupported",
+		     act);
 }
 EXPORT_SYMBOL_GPL(bpf_warn_invalid_xdp_action);
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 130/188] mt76: mt7615: fix possible deadlock while mt7615_register_ext_phy()

[Sasha Levin]

From: Peter Chiu <chui-hao.chiu@mediatek.com>

[ Upstream commit 8c55516de3f9b76b9d9444e7890682ec2efc809f ]

ieee80211_register_hw() is called with rtnl_lock held, and this could be
caused lockdep from a work item that's on a workqueue that is flushed
with the rtnl held.

Move mt7615_register_ext_phy() outside the init_work().

Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
index a2465b49ecd0c..87b4aa52ee0f9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c
@@ -28,8 +28,6 @@ static void mt7615_pci_init_work(struct work_struct *work)
 		return;
 
 	mt7615_init_work(dev);
-	if (dev->dbdc_support)
-		mt7615_register_ext_phy(dev);
 }
 
 static int mt7615_init_hardware(struct mt7615_dev *dev)
@@ -160,6 +158,12 @@ int mt7615_register_device(struct mt7615_dev *dev)
 	mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband);
 	mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband);
 
+	if (dev->dbdc_support) {
+		ret = mt7615_register_ext_phy(dev);
+		if (ret)
+			return ret;
+	}
+
 	return mt7615_init_debugfs(dev);
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 131/188] mt76: do not pass the received frame with decryption error

[Sasha Levin]

From: Xing Song <xing.song@mediatek.com>

[ Upstream commit dd28dea52ad9376d2b243a8981726646e1f60b1a ]

MAC80211 doesn't care any decryption error in 802.3 path, so received
frame will be dropped if HW tell us that the cipher configuration is not
matched as well as the header has been translated to 802.3. This case only
appears when IEEE80211_FCTL_PROTECTED is 0 and cipher suit is not none in
the corresponding HW entry.

The received frame is only reported to monitor interface if HW decryption
block tell us there is ICV error or CCMP/BIP/WPI MIC error. Note in this
case the reported frame is decrypted 802.11 frame and the payload may be
malformed due to mismatched key.

Signed-off-by: Xing Song <xing.song@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7603/mac.c | 4 ++++
 drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 9 ++++++++-
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 9 ++++++++-
 drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 9 ++++++++-
 4 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
index 3972c56136a20..65f1f2bb80835 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
@@ -525,6 +525,10 @@ mt7603_mac_fill_rx(struct mt7603_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_TKIP_MIC_ERR)
 		status->flag |= RX_FLAG_MMIC_ERROR;
 
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd2 & MT_RXD2_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	if (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2) != 0 &&
 	    !(rxd2 & (MT_RXD2_NORMAL_CLM | MT_RXD2_NORMAL_CM))) {
 		status->flag |= RX_FLAG_DECRYPTED;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 5455231f51881..f2704149834a0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -286,9 +286,16 @@ static int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
 		return -EINVAL;
 
+	hdr_trans = rxd1 & MT_RXD1_NORMAL_HDR_TRANS;
+	if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_CM))
+		return -EINVAL;
+
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd2 & MT_RXD2_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	unicast = (rxd1 & MT_RXD1_NORMAL_ADDR_TYPE) == MT_RXD1_NORMAL_U2M;
 	idx = FIELD_GET(MT_RXD2_NORMAL_WLAN_IDX, rxd2);
-	hdr_trans = rxd1 & MT_RXD1_NORMAL_HDR_TRANS;
 	status->wcid = mt7615_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index bbc996f86b5c3..ff613d7056119 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -349,9 +349,16 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
 		return -EINVAL;
 
+	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
+	if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM))
+		return -EINVAL;
+
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd1 & MT_RXD1_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
 	idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
-	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
 	status->wcid = mt7915_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 8a16f3f4d5253..04a288029c98e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -383,10 +383,17 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
 	if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
 		return -EINVAL;
 
+	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
+	if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM))
+		return -EINVAL;
+
+	/* ICV error or CCMP/BIP/WPI MIC error */
+	if (rxd1 & MT_RXD1_NORMAL_ICV_ERR)
+		status->flag |= RX_FLAG_ONLY_MONITOR;
+
 	chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3);
 	unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
 	idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
-	hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
 	status->wcid = mt7921_rx_get_wcid(dev, idx, unicast);
 
 	if (status->wcid) {
-- 
2.34.1

[PATCH AUTOSEL 5.15 132/188] mt76: mt7615: improve wmm index allocation

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 70fb028707c8871ef9e56b3ffa3d895e14956cc4 ]

Typically all AP interfaces on a PHY will share the same WMM settings, while
sta/mesh interfaces will usually inherit the settings from a remote device.
In order minimize the likelihood of conflicting WMM settings, make all AP
interfaces share one slot, and all non-AP interfaces another one.

This also fixes running multiple AP interfaces on MT7613, which only has 3
WMM slots.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7615/main.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index 51260a669d166..fc266da54fe7b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -211,11 +211,9 @@ static int mt7615_add_interface(struct ieee80211_hw *hw,
 	mvif->mt76.omac_idx = idx;
 
 	mvif->mt76.band_idx = ext_phy;
-	if (mt7615_ext_phy(dev))
-		mvif->mt76.wmm_idx = ext_phy * (MT7615_MAX_WMM_SETS / 2) +
-				mvif->mt76.idx % (MT7615_MAX_WMM_SETS / 2);
-	else
-		mvif->mt76.wmm_idx = mvif->mt76.idx % MT7615_MAX_WMM_SETS;
+	mvif->mt76.wmm_idx = vif->type != NL80211_IFTYPE_AP;
+	if (ext_phy)
+		mvif->mt76.wmm_idx += 2;
 
 	dev->mt76.vif_mask |= BIT(mvif->mt76.idx);
 	dev->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
-- 
2.34.1

[PATCH AUTOSEL 5.15 133/188] ath9k_htc: fix NULL pointer dereference at ath9k_htc_rxep()

[Sasha Levin]

From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>

[ Upstream commit b0ec7e55fce65f125bd1d7f02e2dc4de62abee34 ]

syzbot is reporting lockdep warning followed by kernel panic at
ath9k_htc_rxep() [1], for ath9k_htc_rxep() depends on ath9k_rx_init()
being already completed.

Since ath9k_htc_rxep() is set by ath9k_htc_connect_svc(WMI_BEACON_SVC)
 from ath9k_init_htc_services(), it is possible that ath9k_htc_rxep() is
called via timer interrupt before ath9k_rx_init() from ath9k_init_device()
is called.

Since we can't call ath9k_init_device() before ath9k_init_htc_services(),
let's hold ath9k_htc_rxep() no-op until ath9k_rx_init() completes.

Link: https://syzkaller.appspot.com/bug?extid=4d2d56175b934b9a7bf9 [1]
Reported-by: syzbot <syzbot+4d2d56175b934b9a7bf9@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+4d2d56175b934b9a7bf9@syzkaller.appspotmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/2b88f416-b2cb-7a18-d688-951e6dc3fe92@i-love.sakura.ne.jp
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/htc.h          | 1 +
 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 0a1634238e673..4f71e962279af 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -281,6 +281,7 @@ struct ath9k_htc_rxbuf {
 struct ath9k_htc_rx {
 	struct list_head rxbuf;
 	spinlock_t rxbuflock;
+	bool initialized;
 };
 
 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index 8e69e8989f6d3..e7a21eaf3a68d 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -1130,6 +1130,10 @@ void ath9k_htc_rxep(void *drv_priv, struct sk_buff *skb,
 	struct ath9k_htc_rxbuf *rxbuf = NULL, *tmp_buf = NULL;
 	unsigned long flags;
 
+	/* Check if ath9k_rx_init() completed. */
+	if (!data_race(priv->rx.initialized))
+		goto err;
+
 	spin_lock_irqsave(&priv->rx.rxbuflock, flags);
 	list_for_each_entry(tmp_buf, &priv->rx.rxbuf, list) {
 		if (!tmp_buf->in_process) {
@@ -1185,6 +1189,10 @@ int ath9k_rx_init(struct ath9k_htc_priv *priv)
 		list_add_tail(&rxbuf->list, &priv->rx.rxbuf);
 	}
 
+	/* Allow ath9k_htc_rxep() to operate. */
+	smp_wmb();
+	priv->rx.initialized = true;
+
 	return 0;
 
 err:
-- 
2.34.1

[PATCH AUTOSEL 5.15 134/188] ath9k_htc: fix NULL pointer dereference at ath9k_htc_tx_get_packet()

[Sasha Levin]

From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>

[ Upstream commit 8b3046abc99eefe11438090bcc4ec3a3994b55d0 ]

syzbot is reporting lockdep warning at ath9k_wmi_event_tasklet() followed
by kernel panic at get_htc_epid_queue() from ath9k_htc_tx_get_packet() from
ath9k_htc_txstatus() [1], for ath9k_wmi_event_tasklet(WMI_TXSTATUS_EVENTID)
depends on spin_lock_init() from ath9k_init_priv() being already completed.

Since ath9k_wmi_event_tasklet() is set by ath9k_init_wmi() from
ath9k_htc_probe_device(), it is possible that ath9k_wmi_event_tasklet() is
called via tasklet interrupt before spin_lock_init() from ath9k_init_priv()
 from ath9k_init_device() from ath9k_htc_probe_device() is called.

Let's hold ath9k_wmi_event_tasklet(WMI_TXSTATUS_EVENTID) no-op until
ath9k_tx_init() completes.

Link: https://syzkaller.appspot.com/bug?extid=31d54c60c5b254d6f75b [1]
Reported-by: syzbot <syzbot+31d54c60c5b254d6f75b@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+31d54c60c5b254d6f75b@syzkaller.appspotmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/77b76ac8-2bee-6444-d26c-8c30858b8daa@i-love.sakura.ne.jp
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/htc.h          | 1 +
 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 5 +++++
 drivers/net/wireless/ath/ath9k/wmi.c          | 4 ++++
 3 files changed, 10 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 4f71e962279af..6b45e63fae4ba 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -306,6 +306,7 @@ struct ath9k_htc_tx {
 	DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
 	struct timer_list cleanup_timer;
 	spinlock_t tx_lock;
+	bool initialized;
 };
 
 struct ath9k_htc_tx_ctl {
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index e7a21eaf3a68d..6a850a0bfa8ad 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -813,6 +813,11 @@ int ath9k_tx_init(struct ath9k_htc_priv *priv)
 	skb_queue_head_init(&priv->tx.data_vi_queue);
 	skb_queue_head_init(&priv->tx.data_vo_queue);
 	skb_queue_head_init(&priv->tx.tx_failed);
+
+	/* Allow ath9k_wmi_event_tasklet(WMI_TXSTATUS_EVENTID) to operate. */
+	smp_wmb();
+	priv->tx.initialized = true;
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/wmi.c b/drivers/net/wireless/ath/ath9k/wmi.c
index fe29ad4b9023c..f315c54bd3ac0 100644
--- a/drivers/net/wireless/ath/ath9k/wmi.c
+++ b/drivers/net/wireless/ath/ath9k/wmi.c
@@ -169,6 +169,10 @@ void ath9k_wmi_event_tasklet(struct tasklet_struct *t)
 					     &wmi->drv_priv->fatal_work);
 			break;
 		case WMI_TXSTATUS_EVENTID:
+			/* Check if ath9k_tx_init() completed. */
+			if (!data_race(priv->tx.initialized))
+				break;
+
 			spin_lock_bh(&priv->tx.tx_lock);
 			if (priv->tx.flags & ATH9K_HTC_OP_TX_DRAIN) {
 				spin_unlock_bh(&priv->tx.tx_lock);
-- 
2.34.1

[PATCH AUTOSEL 5.15 135/188] ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream

[Sasha Levin]

From: Zekun Shen <bruceshenzk@gmail.com>

[ Upstream commit 6ce708f54cc8d73beca213cec66ede5ce100a781 ]

Large pkt_len can lead to out-out-bound memcpy. Current
ath9k_hif_usb_rx_stream allows combining the content of two urb
inputs to one pkt. The first input can indicate the size of the
pkt. Any remaining size is saved in hif_dev->rx_remain_len.
While processing the next input, memcpy is used with rx_remain_len.

4-byte pkt_len can go up to 0xffff, while a single input is 0x4000
maximum in size (MAX_RX_BUF_SIZE). Thus, the patch adds a check for
pkt_len which must not exceed 2 * MAX_RX_BUG_SIZE.

BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
Read of size 46393 at addr ffff888018798000 by task kworker/0:1/23

CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 5.6.0 #63
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
Workqueue: events request_firmware_work_func
Call Trace:
 <IRQ>
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 ? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 __kasan_report.cold+0x37/0x7c
 ? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 kasan_report+0xe/0x20
 check_memory_region+0x15a/0x1d0
 memcpy+0x20/0x50
 ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 ? hif_usb_mgmt_cb+0x2d9/0x2d9 [ath9k_htc]
 ? _raw_spin_lock_irqsave+0x7b/0xd0
 ? _raw_spin_trylock_bh+0x120/0x120
 ? __usb_unanchor_urb+0x12f/0x210
 __usb_hcd_giveback_urb+0x1e4/0x380
 usb_giveback_urb_bh+0x241/0x4f0
 ? __hrtimer_run_queues+0x316/0x740
 ? __usb_hcd_giveback_urb+0x380/0x380
 tasklet_action_common.isra.0+0x135/0x330
 __do_softirq+0x18c/0x634
 irq_exit+0x114/0x140
 smp_apic_timer_interrupt+0xde/0x380
 apic_timer_interrupt+0xf/0x20

I found the bug using a custome USBFuzz port. It's a research work
to fuzz USB stack/drivers. I modified it to fuzz ath9k driver only,
providing hand-crafted usb descriptors to QEMU.

After fixing the value of pkt_tag to ATH_USB_RX_STREAM_MODE_TAG in QEMU
emulation, I found the KASAN report. The bug is triggerable whenever
pkt_len is above two MAX_RX_BUG_SIZE. I used the same input that crashes
to test the driver works when applying the patch.

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/YXsidrRuK6zBJicZ@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/hif_usb.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 860da13bfb6ac..f06eec99de688 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -590,6 +590,13 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
 			return;
 		}
 
+		if (pkt_len > 2 * MAX_RX_BUF_SIZE) {
+			dev_err(&hif_dev->udev->dev,
+				"ath9k_htc: invalid pkt_len (%x)\n", pkt_len);
+			RX_STAT_INC(skb_dropped);
+			return;
+		}
+
 		pad_len = 4 - (pkt_len & 0x3);
 		if (pad_len == 4)
 			pad_len = 0;
-- 
2.34.1

[PATCH AUTOSEL 5.15 136/188] rtw88: 8822c: update rx settings to prevent potential hw deadlock

[Sasha Levin]

From: Po-Hao Huang <phhuang@realtek.com>

[ Upstream commit c1afb26727d9e507d3e17a9890e7aaf7fc85cd55 ]

These settings enables mac to detect and recover when rx fifo
circuit deadlock occurs. Previous version missed this, so we fix it.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211217012708.8623-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw88/main.c     | 2 +-
 drivers/net/wireless/realtek/rtw88/rtw8821c.h | 2 +-
 drivers/net/wireless/realtek/rtw88/rtw8822b.c | 2 +-
 drivers/net/wireless/realtek/rtw88/rtw8822c.c | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 6bb55e663fc36..69512856bb462 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1859,7 +1859,7 @@ int rtw_core_init(struct rtw_dev *rtwdev)
 
 	/* default rx filter setting */
 	rtwdev->hal.rcr = BIT_APP_FCS | BIT_APP_MIC | BIT_APP_ICV |
-			  BIT_HTC_LOC_CTRL | BIT_APP_PHYSTS |
+			  BIT_PKTCTL_DLEN | BIT_HTC_LOC_CTRL | BIT_APP_PHYSTS |
 			  BIT_AB | BIT_AM | BIT_APM;
 
 	ret = rtw_load_firmware(rtwdev, RTW_NORMAL_FW);
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.h b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
index 112faa60f653e..d9fbddd7b0f35 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
@@ -131,7 +131,7 @@ _rtw_write32s_mask(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 data)
 #define WLAN_TX_FUNC_CFG2		0x30
 #define WLAN_MAC_OPT_NORM_FUNC1		0x98
 #define WLAN_MAC_OPT_LB_FUNC1		0x80
-#define WLAN_MAC_OPT_FUNC2		0x30810041
+#define WLAN_MAC_OPT_FUNC2		0xb0810041
 
 #define WLAN_SIFS_CFG	(WLAN_SIFS_CCK_CONT_TX | \
 			(WLAN_SIFS_OFDM_CONT_TX << BIT_SHIFT_SIFS_OFDM_CTX) | \
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index f1789155e9016..247f26e3e8192 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -204,7 +204,7 @@ static void rtw8822b_phy_set_param(struct rtw_dev *rtwdev)
 #define WLAN_TX_FUNC_CFG2		0x30
 #define WLAN_MAC_OPT_NORM_FUNC1		0x98
 #define WLAN_MAC_OPT_LB_FUNC1		0x80
-#define WLAN_MAC_OPT_FUNC2		0x30810041
+#define WLAN_MAC_OPT_FUNC2		0xb0810041
 
 #define WLAN_SIFS_CFG	(WLAN_SIFS_CCK_CONT_TX | \
 			(WLAN_SIFS_OFDM_CONT_TX << BIT_SHIFT_SIFS_OFDM_CTX) | \
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index f3ad079967a68..bc87e3cb9cdce 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -1962,7 +1962,7 @@ static void rtw8822c_phy_set_param(struct rtw_dev *rtwdev)
 #define WLAN_TX_FUNC_CFG2		0x30
 #define WLAN_MAC_OPT_NORM_FUNC1		0x98
 #define WLAN_MAC_OPT_LB_FUNC1		0x80
-#define WLAN_MAC_OPT_FUNC2		0x30810041
+#define WLAN_MAC_OPT_FUNC2		0xb0810041
 #define WLAN_MAC_INT_MIG_CFG		0x33330000
 
 #define WLAN_SIFS_CFG	(WLAN_SIFS_CCK_CONT_TX | \
-- 
2.34.1

[PATCH AUTOSEL 5.15 138/188] iwlwifi: fix leaks/bad data after failed firmware load

[Sasha Levin]

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit ab07506b0454bea606095951e19e72c282bfbb42 ]

If firmware load fails after having loaded some parts of the
firmware, e.g. the IML image, then this would leak. For the
host command list we'd end up running into a WARN on the next
attempt to load another firmware image.

Fix this by calling iwl_dealloc_ucode() on failures, and make
that also clear the data so we start fresh on the next round.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211210110539.1f742f0eb58a.I1315f22f6aa632d94ae2069f85e1bca5e734dce0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 94553f272d377..2206f66f69940 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -131,6 +131,9 @@ static void iwl_dealloc_ucode(struct iwl_drv *drv)
 
 	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 		iwl_free_fw_img(drv, drv->fw.img + i);
+
+	/* clear the data for the aborted load case */
+	memset(&drv->fw, 0, sizeof(drv->fw));
 }
 
 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
@@ -1333,6 +1336,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 	int i;
 	bool load_module = false;
 	bool usniffer_images = false;
+	bool failure = true;
 
 	fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
 	fw->ucode_capa.standard_phy_calibration_size =
@@ -1602,6 +1606,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 				op->name, err);
 #endif
 	}
+	failure = false;
 	goto free;
 
  try_again:
@@ -1617,6 +1622,9 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 	complete(&drv->request_firmware_complete);
 	device_release_driver(drv->trans->dev);
  free:
+	if (failure)
+		iwl_dealloc_ucode(drv);
+
 	if (pieces) {
 		for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
 			kfree(pieces->img[i].sec);
-- 
2.34.1

[PATCH AUTOSEL 5.15 139/188] iwlwifi: remove module loading failure message

[Sasha Levin]

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 6518f83ffa51131daaf439b66094f684da3fb0ae ]

When CONFIG_DEBUG_TEST_DRIVER_REMOVE is set, iwlwifi crashes
when the opmode module cannot be loaded, due to completing
the completion before using drv->dev, which can then already
be freed.

Fix this by removing the (fairly useless) message. Moving the
completion later causes a deadlock instead, so that's not an
option.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20211210091245.289008-2-luca@coelho.fi
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 2206f66f69940..b7f7b9c5b670c 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1597,15 +1597,8 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 	 * else from proceeding if the module fails to load
 	 * or hangs loading.
 	 */
-	if (load_module) {
+	if (load_module)
 		request_module("%s", op->name);
-#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
-		if (err)
-			IWL_ERR(drv,
-				"failed to load module %s (error %d), is dynamic loading enabled?\n",
-				op->name, err);
-#endif
-	}
 	failure = false;
 	goto free;
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 140/188] iwlwifi: mvm: Fix calculation of frame length

[Sasha Levin]

From: Ilan Peer <ilan.peer@intel.com>

[ Upstream commit 40a0b38d7a7f91a6027287e0df54f5f547e8d27e ]

The RADA might include in the Rx frame the MIC and CRC bytes.
These bytes should be removed for non monitor interfaces and
should not be passed to mac80211.

Fix the Rx processing to remove the extra bytes on non monitor
cases.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219121514.098be12c801e.I1d81733d8a75b84c3b20eb6e0d14ab3405ca6a86@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index c12f303cf652c..efccdd3f33773 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -121,12 +121,39 @@ static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
 	struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
 	unsigned int headlen, fraglen, pad_len = 0;
 	unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);
+	u8 mic_crc_len = u8_get_bits(desc->mac_flags1,
+				     IWL_RX_MPDU_MFLG1_MIC_CRC_LEN_MASK) << 1;
 
 	if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
 		len -= 2;
 		pad_len = 2;
 	}
 
+	/*
+	 * For non monitor interface strip the bytes the RADA might not have
+	 * removed. As monitor interface cannot exist with other interfaces
+	 * this removal is safe.
+	 */
+	if (mic_crc_len && !ieee80211_hw_check(mvm->hw, RX_INCLUDES_FCS)) {
+		u32 pkt_flags = le32_to_cpu(pkt->len_n_flags);
+
+		/*
+		 * If RADA was not enabled then decryption was not performed so
+		 * the MIC cannot be removed.
+		 */
+		if (!(pkt_flags & FH_RSCSR_RADA_EN)) {
+			if (WARN_ON(crypt_len > mic_crc_len))
+				return -EINVAL;
+
+			mic_crc_len -= crypt_len;
+		}
+
+		if (WARN_ON(mic_crc_len > len))
+			return -EINVAL;
+
+		len -= mic_crc_len;
+	}
+
 	/* If frame is small enough to fit in skb->head, pull it completely.
 	 * If not, only pull ieee80211_hdr (including crypto if present, and
 	 * an additional 8 bytes for SNAP/ethertype, see below) so that
-- 
2.34.1

[PATCH AUTOSEL 5.15 141/188] iwlwifi: mvm: fix AUX ROC removal

[Sasha Levin]

From: Avraham Stern <avraham.stern@intel.com>

[ Upstream commit f0337cb48f3bf5f0bbccc985d8a0a8c4aa4934b7 ]

When IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD is set, removing a time event
always tries to cancel session protection. However, AUX ROC does
not use session protection so it was never removed. As a result,
if the driver tries to allocate another AUX ROC event right after
cancelling the first one, it will fail with a warning.
In addition, the time event data passed to iwl_mvm_remove_aux_roc_te()
is incorrect. Fix it.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219132536.915e1f69f062.Id837e917f1c2beaca7c1eb33333d622548918a76@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/time-event.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index e6813317edf35..48383fdac634e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -687,11 +687,14 @@ static bool __iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
 	iwl_mvm_te_clear_data(mvm, te_data);
 	spin_unlock_bh(&mvm->time_event_lock);
 
-	/* When session protection is supported, the te_data->id field
+	/* When session protection is used, the te_data->id field
 	 * is reused to save session protection's configuration.
+	 * For AUX ROC, HOT_SPOT_CMD is used and the te_data->id field is set
+	 * to HOT_SPOT_CMD.
 	 */
 	if (fw_has_capa(&mvm->fw->ucode_capa,
-			IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
+			IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD) &&
+	    id != HOT_SPOT_CMD) {
 		if (mvmvif && id < SESSION_PROTECT_CONF_MAX_ID) {
 			/* Session protection is still ongoing. Cancel it */
 			iwl_mvm_cancel_session_protection(mvm, mvmvif, id);
@@ -1027,7 +1030,7 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 			iwl_mvm_p2p_roc_finished(mvm);
 		} else {
 			iwl_mvm_remove_aux_roc_te(mvm, mvmvif,
-						  &mvmvif->time_event_data);
+						  &mvmvif->hs_time_event_data);
 			iwl_mvm_roc_finished(mvm);
 		}
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 142/188] iwlwifi: pcie: make sure prph_info is set when treating wakeup IRQ

[Sasha Levin]

From: Luca Coelho <luciano.coelho@intel.com>

[ Upstream commit 459fc0f2c6b0f6e280bfa0f230c100c9dfe3a199 ]

In some rare cases when the HW is in a bad state, we may get this
interrupt when prph_info is not set yet.  Then we will try to
dereference it to check the sleep_notif element, which will cause an
oops.

Fix that by ignoring the interrupt if prph_info is not set yet.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219132536.0537aa562313.I183bb336345b9b3da196ba9e596a6f189fbcbd09@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index 8e45eb38304b2..fea89330f692c 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -2261,7 +2261,12 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id)
 		}
 	}
 
-	if (inta_hw & MSIX_HW_INT_CAUSES_REG_WAKEUP) {
+	/*
+	 * In some rare cases when the HW is in a bad state, we may
+	 * get this interrupt too early, when prph_info is still NULL.
+	 * So make sure that it's not NULL to prevent crashing.
+	 */
+	if (inta_hw & MSIX_HW_INT_CAUSES_REG_WAKEUP && trans_pcie->prph_info) {
 		u32 sleep_notif =
 			le32_to_cpu(trans_pcie->prph_info->sleep_notif);
 		if (sleep_notif == IWL_D3_SLEEP_STATUS_SUSPEND ||
-- 
2.34.1

[PATCH AUTOSEL 5.15 146/188] ath11k: Fix napi related hang

[Sasha Levin]

From: Ben Greear <greearb@candelatech.com>

[ Upstream commit d943fdad7589653065be0e20aadc6dff37725ed4 ]

Similar to the same bug in ath10k, a napi disable w/out it being enabled
will hang forever.  I believe I saw this while trying rmmod after driver
had some failure on startup.  Fix it by keeping state on whether napi is
enabled or not.

And, remove un-used napi pointer in ath11k driver base struct.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20200903195254.29379-1-greearb@candelatech.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/ahb.c  | 12 +++++++++---
 drivers/net/wireless/ath/ath11k/core.h |  2 +-
 drivers/net/wireless/ath/ath11k/pci.c  | 12 +++++++++---
 3 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
index 8c9c781afc3e5..b9939057b7baf 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.c
+++ b/drivers/net/wireless/ath/ath11k/ahb.c
@@ -175,8 +175,11 @@ static void __ath11k_ahb_ext_irq_disable(struct ath11k_base *ab)
 
 		ath11k_ahb_ext_grp_disable(irq_grp);
 
-		napi_synchronize(&irq_grp->napi);
-		napi_disable(&irq_grp->napi);
+		if (irq_grp->napi_enabled) {
+			napi_synchronize(&irq_grp->napi);
+			napi_disable(&irq_grp->napi);
+			irq_grp->napi_enabled = false;
+		}
 	}
 }
 
@@ -300,7 +303,10 @@ static void ath11k_ahb_ext_irq_enable(struct ath11k_base *ab)
 	for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
 		struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
 
-		napi_enable(&irq_grp->napi);
+		if (!irq_grp->napi_enabled) {
+			napi_enable(&irq_grp->napi);
+			irq_grp->napi_enabled = true;
+		}
 		ath11k_ahb_ext_grp_enable(irq_grp);
 	}
 }
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 018fb2385f2a3..10d2436f553f6 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -132,6 +132,7 @@ struct ath11k_ext_irq_grp {
 	u32 num_irq;
 	u32 grp_id;
 	u64 timestamp;
+	bool napi_enabled;
 	struct napi_struct napi;
 	struct net_device napi_ndev;
 };
@@ -701,7 +702,6 @@ struct ath11k_base {
 	u32 wlan_init_status;
 	int irq_num[ATH11K_IRQ_NUM_MAX];
 	struct ath11k_ext_irq_grp ext_irq_grp[ATH11K_EXT_IRQ_GRP_NUM_MAX];
-	struct napi_struct *napi;
 	struct ath11k_targ_cap target_caps;
 	u32 ext_service_bitmap[WMI_SERVICE_EXT_BM_SIZE];
 	bool pdevs_macaddr_valid;
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
index 5abb38cc3b55f..81d0eaa13adeb 100644
--- a/drivers/net/wireless/ath/ath11k/pci.c
+++ b/drivers/net/wireless/ath/ath11k/pci.c
@@ -632,8 +632,11 @@ static void __ath11k_pci_ext_irq_disable(struct ath11k_base *sc)
 
 		ath11k_pci_ext_grp_disable(irq_grp);
 
-		napi_synchronize(&irq_grp->napi);
-		napi_disable(&irq_grp->napi);
+		if (irq_grp->napi_enabled) {
+			napi_synchronize(&irq_grp->napi);
+			napi_disable(&irq_grp->napi);
+			irq_grp->napi_enabled = false;
+		}
 	}
 }
 
@@ -652,7 +655,10 @@ static void ath11k_pci_ext_irq_enable(struct ath11k_base *ab)
 	for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
 		struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
 
-		napi_enable(&irq_grp->napi);
+		if (!irq_grp->napi_enabled) {
+			napi_enable(&irq_grp->napi);
+			irq_grp->napi_enabled = true;
+		}
 		ath11k_pci_ext_grp_enable(irq_grp);
 	}
 }
-- 
2.34.1

[PATCH AUTOSEL 5.15 149/188] xfrm: rate limit SA mapping change message to user space

[Sasha Levin]

From: Antony Antony <antony.antony@secunet.com>

[ Upstream commit 4e484b3e969b52effd95c17f7a86f39208b2ccf4 ]

Kernel generates mapping change message, XFRM_MSG_MAPPING,
when a source port chage is detected on a input state with UDP
encapsulation set.  Kernel generates a message for each IPsec packet
with new source port.  For a high speed flow per packet mapping change
message can be excessive, and can overload the user space listener.

Introduce rate limiting for XFRM_MSG_MAPPING message to the user space.

The rate limiting is configurable via netlink, when adding a new SA or
updating it. Use the new attribute XFRMA_MTIMER_THRESH in seconds.

v1->v2 change:
	update xfrm_sa_len()

v2->v3 changes:
	use u32 insted unsigned long to reduce size of struct xfrm_state
	fix xfrm_ompat size Reported-by: kernel test robot <lkp@intel.com>
	accept XFRM_MSG_MAPPING only when XFRMA_ENCAP is present

Co-developed-by: Thomas Egerer <thomas.egerer@secunet.com>
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/xfrm.h        |  5 +++++
 include/uapi/linux/xfrm.h |  1 +
 net/xfrm/xfrm_compat.c    |  6 ++++--
 net/xfrm/xfrm_state.c     | 23 ++++++++++++++++++++++-
 net/xfrm/xfrm_user.c      | 18 +++++++++++++++++-
 5 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 2308210793a01..2589e4c0501bd 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -200,6 +200,11 @@ struct xfrm_state {
 	struct xfrm_algo_aead	*aead;
 	const char		*geniv;
 
+	/* mapping change rate limiting */
+	__be16 new_mapping_sport;
+	u32 new_mapping;	/* seconds */
+	u32 mapping_maxage;	/* seconds for input SA */
+
 	/* Data for encapsulator */
 	struct xfrm_encap_tmpl	*encap;
 	struct sock __rcu	*encap_sk;
diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index eda0426ec4c2b..4e29d78518902 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -313,6 +313,7 @@ enum xfrm_attr_type_t {
 	XFRMA_SET_MARK,		/* __u32 */
 	XFRMA_SET_MARK_MASK,	/* __u32 */
 	XFRMA_IF_ID,		/* __u32 */
+	XFRMA_MTIMER_THRESH,	/* __u32 in seconds for input SA */
 	__XFRMA_MAX
 
 #define XFRMA_OUTPUT_MARK XFRMA_SET_MARK	/* Compatibility */
diff --git a/net/xfrm/xfrm_compat.c b/net/xfrm/xfrm_compat.c
index 2bf2693901631..a0f62fa02e06e 100644
--- a/net/xfrm/xfrm_compat.c
+++ b/net/xfrm/xfrm_compat.c
@@ -127,6 +127,7 @@ static const struct nla_policy compat_policy[XFRMA_MAX+1] = {
 	[XFRMA_SET_MARK]	= { .type = NLA_U32 },
 	[XFRMA_SET_MARK_MASK]	= { .type = NLA_U32 },
 	[XFRMA_IF_ID]		= { .type = NLA_U32 },
+	[XFRMA_MTIMER_THRESH]	= { .type = NLA_U32 },
 };
 
 static struct nlmsghdr *xfrm_nlmsg_put_compat(struct sk_buff *skb,
@@ -274,9 +275,10 @@ static int xfrm_xlate64_attr(struct sk_buff *dst, const struct nlattr *src)
 	case XFRMA_SET_MARK:
 	case XFRMA_SET_MARK_MASK:
 	case XFRMA_IF_ID:
+	case XFRMA_MTIMER_THRESH:
 		return xfrm_nla_cpy(dst, src, nla_len(src));
 	default:
-		BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID);
+		BUILD_BUG_ON(XFRMA_MAX != XFRMA_MTIMER_THRESH);
 		pr_warn_once("unsupported nla_type %d\n", src->nla_type);
 		return -EOPNOTSUPP;
 	}
@@ -431,7 +433,7 @@ static int xfrm_xlate32_attr(void *dst, const struct nlattr *nla,
 	int err;
 
 	if (type > XFRMA_MAX) {
-		BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID);
+		BUILD_BUG_ON(XFRMA_MAX != XFRMA_MTIMER_THRESH);
 		NL_SET_ERR_MSG(extack, "Bad attribute");
 		return -EOPNOTSUPP;
 	}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index a2f4001221d16..78d51399a0f4b 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1593,6 +1593,9 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig,
 	x->km.seq = orig->km.seq;
 	x->replay = orig->replay;
 	x->preplay = orig->preplay;
+	x->mapping_maxage = orig->mapping_maxage;
+	x->new_mapping = 0;
+	x->new_mapping_sport = 0;
 
 	return x;
 
@@ -2242,7 +2245,7 @@ int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol)
 }
 EXPORT_SYMBOL(km_query);
 
-int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
+static int __km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
 {
 	int err = -EINVAL;
 	struct xfrm_mgr *km;
@@ -2257,6 +2260,24 @@ int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
 	rcu_read_unlock();
 	return err;
 }
+
+int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
+{
+	int ret = 0;
+
+	if (x->mapping_maxage) {
+		if ((jiffies / HZ - x->new_mapping) > x->mapping_maxage ||
+		    x->new_mapping_sport != sport) {
+			x->new_mapping_sport = sport;
+			x->new_mapping = jiffies / HZ;
+			ret = __km_new_mapping(x, ipaddr, sport);
+		}
+	} else {
+		ret = __km_new_mapping(x, ipaddr, sport);
+	}
+
+	return ret;
+}
 EXPORT_SYMBOL(km_new_mapping);
 
 void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 portid)
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 3a3cb09eec122..d75ac53ee7b42 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -282,6 +282,10 @@ static int verify_newsa_info(struct xfrm_usersa_info *p,
 
 	err = 0;
 
+	if (attrs[XFRMA_MTIMER_THRESH])
+		if (!attrs[XFRMA_ENCAP])
+			err = -EINVAL;
+
 out:
 	return err;
 }
@@ -521,6 +525,7 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs,
 	struct nlattr *lt = attrs[XFRMA_LTIME_VAL];
 	struct nlattr *et = attrs[XFRMA_ETIMER_THRESH];
 	struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH];
+	struct nlattr *mt = attrs[XFRMA_MTIMER_THRESH];
 
 	if (re) {
 		struct xfrm_replay_state_esn *replay_esn;
@@ -552,6 +557,9 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs,
 
 	if (rt)
 		x->replay_maxdiff = nla_get_u32(rt);
+
+	if (mt)
+		x->mapping_maxage = nla_get_u32(mt);
 }
 
 static void xfrm_smark_init(struct nlattr **attrs, struct xfrm_mark *m)
@@ -1024,8 +1032,13 @@ static int copy_to_user_state_extra(struct xfrm_state *x,
 		if (ret)
 			goto out;
 	}
-	if (x->security)
+	if (x->security) {
 		ret = copy_sec_ctx(x->security, skb);
+		if (ret)
+			goto out;
+	}
+	if (x->mapping_maxage)
+		ret = nla_put_u32(skb, XFRMA_MTIMER_THRESH, x->mapping_maxage);
 out:
 	return ret;
 }
@@ -3069,6 +3082,9 @@ static inline unsigned int xfrm_sa_len(struct xfrm_state *x)
 	/* Must count x->lastused as it may become non-zero behind our back. */
 	l += nla_total_size_64bit(sizeof(u64));
 
+	if (x->mapping_maxage)
+		l += nla_total_size(sizeof(x->mapping_maxage));
+
 	return l;
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.15 166/188] net: mdio: Demote probed message to debug print

[Sasha Levin]

From: Florian Fainelli <f.fainelli@gmail.com>

[ Upstream commit 7590fc6f80ac2cbf23e6b42b668bbeded070850b ]

On systems with large numbers of MDIO bus/muxes the message indicating
that a given MDIO bus has been successfully probed is repeated for as
many buses we have, which can eat up substantial boot time for no
reason, demote to a debug print.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220103194024.2620-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/mdio_bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 6865d9319197f..8dc6e6269c65e 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -591,7 +591,7 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
 	mdiobus_setup_mdiodev_from_board_info(bus, mdiobus_create_device);
 
 	bus->state = MDIOBUS_REGISTERED;
-	pr_info("%s: probed\n", bus->name);
+	dev_dbg(&bus->dev, "probed\n");
 	return 0;
 
 error:
-- 
2.34.1

[PATCH AUTOSEL 5.15 167/188] mac80211: allow non-standard VHT MCS-10/11

[Sasha Levin]

From: Ping-Ke Shih <pkshih@realtek.com>

[ Upstream commit 04be6d337d37400ad5b3d5f27ca87645ee5a18a3 ]

Some AP can possibly try non-standard VHT rate and mac80211 warns and drops
packets, and leads low TCP throughput.

    Rate marked as a VHT rate but data is invalid: MCS: 10, NSS: 2
    WARNING: CPU: 1 PID: 7817 at net/mac80211/rx.c:4856 ieee80211_rx_list+0x223/0x2f0 [mac8021

Since commit c27aa56a72b8 ("cfg80211: add VHT rate entries for MCS-10 and MCS-11")
has added, mac80211 adds this support as well.

After this patch, throughput is good and iw can get the bitrate:
    rx bitrate:	975.1 MBit/s VHT-MCS 10 80MHz short GI VHT-NSS 2
or
    rx bitrate:	1083.3 MBit/s VHT-MCS 11 80MHz short GI VHT-NSS 2

Buglink: https://bugzilla.suse.com/show_bug.cgi?id=1192891
Reported-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20220103013623.17052-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1958e4d59b524..92ce173dd0c13 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4933,7 +4933,7 @@ void ieee80211_rx_list(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta,
 				goto drop;
 			break;
 		case RX_ENC_VHT:
-			if (WARN_ONCE(status->rate_idx > 9 ||
+			if (WARN_ONCE(status->rate_idx > 11 ||
 				      !status->nss ||
 				      status->nss > 8,
 				      "Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n",
-- 
2.34.1

[PATCH AUTOSEL 5.15 170/188] bpf/selftests: Fix namespace mount setup in tc_redirect

[Sasha Levin]

From: Jiri Olsa <jolsa@redhat.com>

[ Upstream commit 5e22dd18626726028a93ff1350a8a71a00fd843d ]

The tc_redirect umounts /sys in the new namespace, which can be
mounted as shared and cause global umount. The lazy umount also
takes down mounted trees under /sys like debugfs, which won't be
available after sysfs mounts again and could cause fails in other
tests.

  # cat /proc/self/mountinfo | grep debugfs
  34 23 0:7 / /sys/kernel/debug rw,nosuid,nodev,noexec,relatime shared:14 - debugfs debugfs rw
  # cat /proc/self/mountinfo | grep sysfs
  23 86 0:22 / /sys rw,nosuid,nodev,noexec,relatime shared:2 - sysfs sysfs rw
  # mount | grep debugfs
  debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)

  # ./test_progs -t tc_redirect
  #164 tc_redirect:OK
  Summary: 1/4 PASSED, 0 SKIPPED, 0 FAILED

  # mount | grep debugfs
  # cat /proc/self/mountinfo | grep debugfs
  # cat /proc/self/mountinfo | grep sysfs
  25 86 0:22 / /sys rw,relatime shared:2 - sysfs sysfs rw

Making the sysfs private under the new namespace so the umount won't
trigger the global sysfs umount.

Reported-by: Hangbin Liu <haliu@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jussi Maki <joamaki@gmail.com>
Link: https://lore.kernel.org/bpf/20220104121030.138216-1-jolsa@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/prog_tests/tc_redirect.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
index e7201ba29ccd6..47e3159729d21 100644
--- a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
+++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
@@ -105,6 +105,13 @@ static int setns_by_fd(int nsfd)
 	if (!ASSERT_OK(err, "unshare"))
 		return err;
 
+	/* Make our /sys mount private, so the following umount won't
+	 * trigger the global umount in case it's shared.
+	 */
+	err = mount("none", "/sys", NULL, MS_PRIVATE, NULL);
+	if (!ASSERT_OK(err, "remount private /sys"))
+		return err;
+
 	err = umount2("/sys", MNT_DETACH);
 	if (!ASSERT_OK(err, "umount2 /sys"))
 		return err;
-- 
2.34.1

[PATCH AUTOSEL 5.15 171/188] mlxsw: pci: Avoid flow control for EMAD packets

[Sasha Levin]

From: Danielle Ratson <danieller@nvidia.com>

[ Upstream commit d43e4271747ace01a27a49a97a397cb4219f6487 ]

Locally generated packets ingress the device through its CPU port. When
the CPU port is congested and there are not enough credits in its
headroom buffer, packets can be dropped.

While this might be acceptable for data packets that traverse the
network, configuration packets exchanged between the host and the device
(EMADs) should not be subjected to this flow control.

The "sdq_lp" bit in the SDQ (Send Descriptor Queue) context allows the
host to instruct the device to treat packets sent on this queue as
"local processing" and always process them, regardless of the state of
the CPU port's headroom.

Add the definition of this bit and set it for the dedicated SDQ reserved
for the transmission of EMAD packets. This makes the "local processing"
bit in the WQE (Work Queue Element) redundant, so clear it.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/cmd.h | 12 ++++++++++++
 drivers/net/ethernet/mellanox/mlxsw/pci.c |  6 +++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/cmd.h b/drivers/net/ethernet/mellanox/mlxsw/cmd.h
index 392ce3cb27f72..51b260d54237e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/cmd.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/cmd.h
@@ -935,6 +935,18 @@ static inline int mlxsw_cmd_sw2hw_rdq(struct mlxsw_core *mlxsw_core,
  */
 MLXSW_ITEM32(cmd_mbox, sw2hw_dq, cq, 0x00, 24, 8);
 
+enum mlxsw_cmd_mbox_sw2hw_dq_sdq_lp {
+	MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_WQE,
+	MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_IGNORE_WQE,
+};
+
+/* cmd_mbox_sw2hw_dq_sdq_lp
+ * SDQ local Processing
+ * 0: local processing by wqe.lp
+ * 1: local processing (ignoring wqe.lp)
+ */
+MLXSW_ITEM32(cmd_mbox, sw2hw_dq, sdq_lp, 0x00, 23, 1);
+
 /* cmd_mbox_sw2hw_dq_sdq_tclass
  * SDQ: CPU Egress TClass
  * RDQ: Reserved
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index 01c3235ab2bdf..d9f9cbba62465 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -285,6 +285,7 @@ static int mlxsw_pci_sdq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 			      struct mlxsw_pci_queue *q)
 {
 	int tclass;
+	int lp;
 	int i;
 	int err;
 
@@ -292,9 +293,12 @@ static int mlxsw_pci_sdq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 	q->consumer_counter = 0;
 	tclass = q->num == MLXSW_PCI_SDQ_EMAD_INDEX ? MLXSW_PCI_SDQ_EMAD_TC :
 						      MLXSW_PCI_SDQ_CTL_TC;
+	lp = q->num == MLXSW_PCI_SDQ_EMAD_INDEX ? MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_IGNORE_WQE :
+						  MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_WQE;
 
 	/* Set CQ of same number of this SDQ. */
 	mlxsw_cmd_mbox_sw2hw_dq_cq_set(mbox, q->num);
+	mlxsw_cmd_mbox_sw2hw_dq_sdq_lp_set(mbox, lp);
 	mlxsw_cmd_mbox_sw2hw_dq_sdq_tclass_set(mbox, tclass);
 	mlxsw_cmd_mbox_sw2hw_dq_log2_dq_sz_set(mbox, 3); /* 8 pages */
 	for (i = 0; i < MLXSW_PCI_AQ_PAGES; i++) {
@@ -1678,7 +1682,7 @@ static int mlxsw_pci_skb_transmit(void *bus_priv, struct sk_buff *skb,
 
 	wqe = elem_info->elem;
 	mlxsw_pci_wqe_c_set(wqe, 1); /* always report completion */
-	mlxsw_pci_wqe_lp_set(wqe, !!tx_info->is_emad);
+	mlxsw_pci_wqe_lp_set(wqe, 0);
 	mlxsw_pci_wqe_type_set(wqe, MLXSW_PCI_WQE_TYPE_ETHERNET);
 
 	err = mlxsw_pci_wqe_frag_map(mlxsw_pci, wqe, 0, skb->data,
-- 
2.34.1

[PATCH AUTOSEL 5.15 172/188] net: phy: marvell: configure RGMII delays for 88E1118

[Sasha Levin]

From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>

[ Upstream commit f22725c95ececb703c3f741e8f946d23705630b7 ]

Corentin Labbe reports that the SSI 1328 does not work when allowing
the PHY to operate at gigabit speeds, but does work with the generic
PHY driver.

This appears to be because m88e1118_config_init() writes a fixed value
to the MSCR register, claiming that this is to enable 1G speeds.
However, this always sets bits 4 and 5, enabling RGMII transmit and
receive delays. The suspicion is that the original board this was
added for required the delays to make 1G speeds work.

Add the necessary configuration for RGMII delays for the 88E1118 to
bring this into line with the requirements for RGMII support, and thus
make the SSI 1328 work.

Corentin Labbe has tested this on gemini-ssi1328 and gemini-ns2502.

Reported-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/marvell.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 4fcfca4e17021..b02491f7dd957 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1242,6 +1242,12 @@ static int m88e1118_config_init(struct phy_device *phydev)
 	if (err < 0)
 		return err;
 
+	if (phy_interface_is_rgmii(phydev)) {
+		err = m88e1121_config_aneg_rgmii_delays(phydev);
+		if (err < 0)
+			return err;
+	}
+
 	/* Adjust LED Control */
 	if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
 		err = phy_write(phydev, 0x10, 0x1100);
-- 
2.34.1

[PATCH AUTOSEL 5.15 173/188] net: gemini: allow any RGMII interface mode

[Sasha Levin]

From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>

[ Upstream commit 4e4f325a0a55907b14f579e6b1a38c53755e3de2 ]

The four RGMII interface modes take care of the required RGMII delay
configuration at the PHY and should not be limited by the network MAC
driver. Sadly, gemini was only permitting RGMII mode with no delays,
which would require the required delay to be inserted via PCB tracking
or by the MAC.

However, there are designs that require the PHY to add the delay, which
is impossible without Gemini permitting the other three PHY interface
modes. Fix the driver to allow these.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Link: https://lore.kernel.org/r/E1n4mpT-002PLd-Ha@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/cortina/gemini.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index 6e745ca4c4333..012ca11a38cc1 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -305,21 +305,21 @@ static void gmac_speed_set(struct net_device *netdev)
 	switch (phydev->speed) {
 	case 1000:
 		status.bits.speed = GMAC_SPEED_1000;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_1000;
 		netdev_dbg(netdev, "connect %s to RGMII @ 1Gbit\n",
 			   phydev_name(phydev));
 		break;
 	case 100:
 		status.bits.speed = GMAC_SPEED_100;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
 		netdev_dbg(netdev, "connect %s to RGMII @ 100 Mbit\n",
 			   phydev_name(phydev));
 		break;
 	case 10:
 		status.bits.speed = GMAC_SPEED_10;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
 		netdev_dbg(netdev, "connect %s to RGMII @ 10 Mbit\n",
 			   phydev_name(phydev));
@@ -389,6 +389,9 @@ static int gmac_setup_phy(struct net_device *netdev)
 		status.bits.mii_rmii = GMAC_PHY_GMII;
 		break;
 	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
 		netdev_dbg(netdev,
 			   "RGMII: set GMAC0 and GMAC1 to MII/RGMII mode\n");
 		status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
-- 
2.34.1

[PATCH AUTOSEL 5.15 174/188] net: dsa: hold rtnl_mutex when calling dsa_master_{setup,teardown}

[Sasha Levin]

From: Vladimir Oltean <vladimir.oltean@nxp.com>

[ Upstream commit c146f9bc195a9dc3ad7fd000a14540e7c9df952d ]

DSA needs to simulate master tracking events when a binding is first
with a DSA master established and torn down, in order to give drivers
the simplifying guarantee that ->master_state_change calls are made
only when the master's readiness state to pass traffic changes.
master_state_change() provide a operational bool that DSA driver can use
to understand if DSA master is operational or not.
To avoid races, we need to block the reception of
NETDEV_UP/NETDEV_CHANGE/NETDEV_GOING_DOWN events in the netdev notifier
chain while we are changing the master's dev->dsa_ptr (this changes what
netdev_uses_dsa(dev) reports).

The dsa_master_setup() and dsa_master_teardown() functions optionally
require the rtnl_mutex to be held, if the tagger needs the master to be
promiscuous, these functions call dev_set_promiscuity(). Move the
rtnl_lock() from that function and make it top-level.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/dsa/dsa2.c   | 8 ++++++++
 net/dsa/master.c | 4 ++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index e9911b18bdbfa..db9cdfb190fc0 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -1011,6 +1011,8 @@ static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
 	struct dsa_port *dp;
 	int err;
 
+	rtnl_lock();
+
 	list_for_each_entry(dp, &dst->ports, list) {
 		if (dsa_port_is_cpu(dp)) {
 			err = dsa_master_setup(dp->master, dp);
@@ -1019,6 +1021,8 @@ static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
 		}
 	}
 
+	rtnl_unlock();
+
 	return 0;
 }
 
@@ -1026,9 +1030,13 @@ static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)
 {
 	struct dsa_port *dp;
 
+	rtnl_lock();
+
 	list_for_each_entry(dp, &dst->ports, list)
 		if (dsa_port_is_cpu(dp))
 			dsa_master_teardown(dp->master);
+
+	rtnl_unlock();
 }
 
 static int dsa_tree_setup_lags(struct dsa_switch_tree *dst)
diff --git a/net/dsa/master.c b/net/dsa/master.c
index e8e19857621bd..16b7dfd22bf5d 100644
--- a/net/dsa/master.c
+++ b/net/dsa/master.c
@@ -267,9 +267,9 @@ static void dsa_master_set_promiscuity(struct net_device *dev, int inc)
 	if (!ops->promisc_on_master)
 		return;
 
-	rtnl_lock();
+	ASSERT_RTNL();
+
 	dev_set_promiscuity(dev, inc);
-	rtnl_unlock();
 }
 
 static ssize_t tagging_show(struct device *d, struct device_attribute *attr,
-- 
2.34.1

[PATCH AUTOSEL 5.15 180/188] net/mlx5: Update log_max_qp value to FW max capability

[Sasha Levin]

From: Maher Sanalla <msanalla@nvidia.com>

[ Upstream commit f79a609ea6bf54ad2d2c24e4de4524288b221666 ]

log_max_qp in driver's default profile #2 was set to 18, but FW actually
supports 17 at the most - a situation that led to the concerning print
when the driver is loaded:
"log_max_qp value in current profile is 18, changing to HCA capabaility
limit (17)"

The expected behavior from mlx5_profile #2 is to match the maximum FW
capability in regards to log_max_qp. Thus, log_max_qp in profile #2 is
initialized to a defined static value (0xff) - which basically means that
when loading this profile, log_max_qp value  will be what the currently
installed FW supports at most.

Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/main.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 92b01858d7f3e..29b7297a836a5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -97,6 +97,8 @@ enum {
 	MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS = 0x1,
 };
 
+#define LOG_MAX_SUPPORTED_QPS 0xff
+
 static struct mlx5_profile profile[] = {
 	[0] = {
 		.mask           = 0,
@@ -108,7 +110,7 @@ static struct mlx5_profile profile[] = {
 	[2] = {
 		.mask		= MLX5_PROF_MASK_QP_SIZE |
 				  MLX5_PROF_MASK_MR_CACHE,
-		.log_max_qp	= 18,
+		.log_max_qp	= LOG_MAX_SUPPORTED_QPS,
 		.mr_cache[0]	= {
 			.size	= 500,
 			.limit	= 250
@@ -513,7 +515,9 @@ static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)
 		 to_fw_pkey_sz(dev, 128));
 
 	/* Check log_max_qp from HCA caps to set in current profile */
-	if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
+	if (prof->log_max_qp == LOG_MAX_SUPPORTED_QPS) {
+		prof->log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
+	} else if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
 		mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
 			       prof->log_max_qp,
 			       MLX5_CAP_GEN_MAX(dev, log_max_qp));
-- 
2.34.1

[PATCH AUTOSEL 5.15 181/188] net/mlx5e: Unblock setting vid 0 for VF in case PF isn't eswitch manager

[Sasha Levin]

From: Maor Dickman <maord@nvidia.com>

[ Upstream commit 7846665d3504812acaebf920d1141851379a7f37 ]

When using libvirt to passthrough VF to VM it will always set the VF vlan
to 0 even if user didn’t request it, this will cause libvirt to fail to
boot in case the PF isn't eswitch owner.

Example of such case is the DPU host PF which isn't eswitch manager, so
any attempt to passthrough VF of it using libvirt will fail.

Fix it by not returning error in case set VF vlan is called with vid 0.

Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c
index df277a6cddc0b..0c4c743ca31e1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c
@@ -431,7 +431,7 @@ int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
 	int err = 0;
 
 	if (!mlx5_esw_allowed(esw))
-		return -EPERM;
+		return vlan ? -EPERM : 0;
 
 	if (vlan || qos)
 		set_flags = SET_VLAN_STRIP | SET_VLAN_INSERT;
-- 
2.34.1

[PATCH AUTOSEL 5.15 184/188] can: flexcan: allow to change quirks at runtime

[Sasha Levin]

From: Dario Binacchi <dario.binacchi@amarulasolutions.com>

[ Upstream commit 01bb4dccd92b4dc21f6af3312e5696924e371111 ]

This is a preparation patch for the upcoming support to change the
rx-rtr capability via the ethtool API.

Link: https://lore.kernel.org/all/20220107193105.1699523-3-mkl@pengutronix.de
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/flexcan.c | 54 +++++++++++++++++++--------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 7734229aa0788..3178557e40208 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -365,7 +365,7 @@ struct flexcan_priv {
 
 	struct clk *clk_ipg;
 	struct clk *clk_per;
-	const struct flexcan_devtype_data *devtype_data;
+	struct flexcan_devtype_data devtype_data;
 	struct regulator *reg_xceiver;
 	struct flexcan_stop_mode stm;
 
@@ -596,7 +596,7 @@ static inline int flexcan_enter_stop_mode(struct flexcan_priv *priv)
 	priv->write(reg_mcr, &regs->mcr);
 
 	/* enable stop request */
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW) {
 		ret = flexcan_stop_mode_enable_scfw(priv, true);
 		if (ret < 0)
 			return ret;
@@ -615,7 +615,7 @@ static inline int flexcan_exit_stop_mode(struct flexcan_priv *priv)
 	int ret;
 
 	/* remove stop request */
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW) {
 		ret = flexcan_stop_mode_enable_scfw(priv, false);
 		if (ret < 0)
 			return ret;
@@ -1018,7 +1018,7 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload,
 
 	mb = flexcan_get_mb(priv, n);
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
 		u32 code;
 
 		do {
@@ -1083,7 +1083,7 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload,
 	}
 
  mark_as_read:
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
 		flexcan_write64(priv, FLEXCAN_IFLAG_MB(n), &regs->iflag1);
 	else
 		priv->write(FLEXCAN_IFLAG_RX_FIFO_AVAILABLE, &regs->iflag1);
@@ -1109,7 +1109,7 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 	enum can_state last_state = priv->can.state;
 
 	/* reception interrupt */
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
 		u64 reg_iflag_rx;
 		int ret;
 
@@ -1169,7 +1169,7 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 
 	/* state change interrupt or broken error state quirk fix is enabled */
 	if ((reg_esr & FLEXCAN_ESR_ERR_STATE) ||
-	    (priv->devtype_data->quirks & (FLEXCAN_QUIRK_BROKEN_WERR_STATE |
+	    (priv->devtype_data.quirks & (FLEXCAN_QUIRK_BROKEN_WERR_STATE |
 					   FLEXCAN_QUIRK_BROKEN_PERR_STATE)))
 		flexcan_irq_state(dev, reg_esr);
 
@@ -1191,11 +1191,11 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 	 * (1): enabled if FLEXCAN_QUIRK_BROKEN_WERR_STATE is enabled
 	 */
 	if ((last_state != priv->can.state) &&
-	    (priv->devtype_data->quirks & FLEXCAN_QUIRK_BROKEN_PERR_STATE) &&
+	    (priv->devtype_data.quirks & FLEXCAN_QUIRK_BROKEN_PERR_STATE) &&
 	    !(priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)) {
 		switch (priv->can.state) {
 		case CAN_STATE_ERROR_ACTIVE:
-			if (priv->devtype_data->quirks &
+			if (priv->devtype_data.quirks &
 			    FLEXCAN_QUIRK_BROKEN_WERR_STATE)
 				flexcan_error_irq_enable(priv);
 			else
@@ -1423,13 +1423,13 @@ static int flexcan_rx_offload_setup(struct net_device *dev)
 	else
 		priv->mb_size = sizeof(struct flexcan_mb) + CAN_MAX_DLEN;
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_NR_MB_16)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_NR_MB_16)
 		priv->mb_count = 16;
 	else
 		priv->mb_count = (sizeof(priv->regs->mb[0]) / priv->mb_size) +
 				 (sizeof(priv->regs->mb[1]) / priv->mb_size);
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
 		priv->tx_mb_reserved =
 			flexcan_get_mb(priv, FLEXCAN_TX_MB_RESERVED_OFF_TIMESTAMP);
 	else
@@ -1441,7 +1441,7 @@ static int flexcan_rx_offload_setup(struct net_device *dev)
 
 	priv->offload.mailbox_read = flexcan_mailbox_read;
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
 		priv->offload.mb_first = FLEXCAN_RX_MB_OFF_TIMESTAMP_FIRST;
 		priv->offload.mb_last = priv->mb_count - 2;
 
@@ -1506,7 +1506,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	if (err)
 		goto out_chip_disable;
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_SUPPORT_ECC)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_SUPPORT_ECC)
 		flexcan_ram_init(dev);
 
 	flexcan_set_bittiming(dev);
@@ -1535,7 +1535,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * - disable for timestamp mode
 	 * - enable for FIFO mode
 	 */
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
 		reg_mcr &= ~FLEXCAN_MCR_FEN;
 	else
 		reg_mcr |= FLEXCAN_MCR_FEN;
@@ -1586,7 +1586,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * on most Flexcan cores, too. Otherwise we don't get
 	 * any error warning or passive interrupts.
 	 */
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_BROKEN_WERR_STATE ||
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_BROKEN_WERR_STATE ||
 	    priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
 		reg_ctrl |= FLEXCAN_CTRL_ERR_MSK;
 	else
@@ -1599,7 +1599,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl);
 	priv->write(reg_ctrl, &regs->ctrl);
 
-	if ((priv->devtype_data->quirks & FLEXCAN_QUIRK_ENABLE_EACEN_RRS)) {
+	if ((priv->devtype_data.quirks & FLEXCAN_QUIRK_ENABLE_EACEN_RRS)) {
 		reg_ctrl2 = priv->read(&regs->ctrl2);
 		reg_ctrl2 |= FLEXCAN_CTRL2_EACEN | FLEXCAN_CTRL2_RRS;
 		priv->write(reg_ctrl2, &regs->ctrl2);
@@ -1631,7 +1631,7 @@ static int flexcan_chip_start(struct net_device *dev)
 		priv->write(reg_fdctrl, &regs->fdctrl);
 	}
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
 		for (i = priv->offload.mb_first; i <= priv->offload.mb_last; i++) {
 			mb = flexcan_get_mb(priv, i);
 			priv->write(FLEXCAN_MB_CODE_RX_EMPTY,
@@ -1659,7 +1659,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	priv->write(0x0, &regs->rx14mask);
 	priv->write(0x0, &regs->rx15mask);
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_DISABLE_RXFG)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_DISABLE_RXFG)
 		priv->write(0x0, &regs->rxfgmask);
 
 	/* clear acceptance filters */
@@ -1673,7 +1673,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * This also works around errata e5295 which generates false
 	 * positive memory errors and put the device in freeze mode.
 	 */
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_DISABLE_MECR) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_DISABLE_MECR) {
 		/* Follow the protocol as described in "Detection
 		 * and Correction of Memory Errors" to write to
 		 * MECR register (step 1 - 5)
@@ -1799,7 +1799,7 @@ static int flexcan_open(struct net_device *dev)
 	if (err)
 		goto out_can_rx_offload_disable;
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_NR_IRQ_3) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_NR_IRQ_3) {
 		err = request_irq(priv->irq_boff,
 				  flexcan_irq, IRQF_SHARED, dev->name, dev);
 		if (err)
@@ -1845,7 +1845,7 @@ static int flexcan_close(struct net_device *dev)
 	netif_stop_queue(dev);
 	flexcan_chip_interrupts_disable(dev);
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_NR_IRQ_3) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_NR_IRQ_3) {
 		free_irq(priv->irq_err, dev);
 		free_irq(priv->irq_boff, dev);
 	}
@@ -2051,9 +2051,9 @@ static int flexcan_setup_stop_mode(struct platform_device *pdev)
 
 	priv = netdev_priv(dev);
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW)
 		ret = flexcan_setup_stop_mode_scfw(pdev);
-	else if (priv->devtype_data->quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR)
+	else if (priv->devtype_data.quirks & FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR)
 		ret = flexcan_setup_stop_mode_gpr(pdev);
 	else
 		/* return 0 directly if doesn't support stop mode feature */
@@ -2181,9 +2181,10 @@ static int flexcan_probe(struct platform_device *pdev)
 	dev->flags |= IFF_ECHO;
 
 	priv = netdev_priv(dev);
+	priv->devtype_data = *devtype_data;
 
 	if (of_property_read_bool(pdev->dev.of_node, "big-endian") ||
-	    devtype_data->quirks & FLEXCAN_QUIRK_DEFAULT_BIG_ENDIAN) {
+	    priv->devtype_data.quirks & FLEXCAN_QUIRK_DEFAULT_BIG_ENDIAN) {
 		priv->read = flexcan_read_be;
 		priv->write = flexcan_write_be;
 	} else {
@@ -2202,10 +2203,9 @@ static int flexcan_probe(struct platform_device *pdev)
 	priv->clk_ipg = clk_ipg;
 	priv->clk_per = clk_per;
 	priv->clk_src = clk_src;
-	priv->devtype_data = devtype_data;
 	priv->reg_xceiver = reg_xceiver;
 
-	if (devtype_data->quirks & FLEXCAN_QUIRK_NR_IRQ_3) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_NR_IRQ_3) {
 		priv->irq_boff = platform_get_irq(pdev, 1);
 		if (priv->irq_boff <= 0) {
 			err = -ENODEV;
@@ -2218,7 +2218,7 @@ static int flexcan_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_SUPPORT_FD) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_SUPPORT_FD) {
 		priv->can.ctrlmode_supported |= CAN_CTRLMODE_FD |
 			CAN_CTRLMODE_FD_NON_ISO;
 		priv->can.bittiming_const = &flexcan_fd_bittiming_const;
-- 
2.34.1

[PATCH AUTOSEL 5.15 185/188] can: flexcan: rename RX modes

[Sasha Levin]

From: Marc Kleine-Budde <mkl@pengutronix.de>

[ Upstream commit 34ea4e1c99f1f177f87e4ae7896caef238dd741a ]

Most flexcan IP cores support 2 RX modes:
- FIFO
- mailbox

The names for these modes were chosen to reflect the name of the
rx-offload mode they are using.

The name of the RX modes should better reflect their difference with
regards the flexcan IP core. So this patch renames the various
occurrences of OFF_FIFO to RX_FIFO and OFF_TIMESTAMP to RX_MAILBOX:

| FLEXCAN_TX_MB_RESERVED_OFF_FIFO -> FLEXCAN_TX_MB_RESERVED_RX_FIFO
| FLEXCAN_TX_MB_RESERVED_OFF_TIMESTAMP -> FLEXCAN_TX_MB_RESERVED_RX_MAILBOX
| FLEXCAN_QUIRK_USE_OFF_TIMESTAMP -> FLEXCAN_QUIRK_USE_RX_MAILBOX

Link: https://lore.kernel.org/all/20220107193105.1699523-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/flexcan.c | 48 +++++++++++++++++++--------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 3178557e40208..02299befe2852 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -173,9 +173,9 @@
 
 /* FLEXCAN interrupt flag register (IFLAG) bits */
 /* Errata ERR005829 step7: Reserve first valid MB */
-#define FLEXCAN_TX_MB_RESERVED_OFF_FIFO		8
-#define FLEXCAN_TX_MB_RESERVED_OFF_TIMESTAMP	0
-#define FLEXCAN_RX_MB_OFF_TIMESTAMP_FIRST	(FLEXCAN_TX_MB_RESERVED_OFF_TIMESTAMP + 1)
+#define FLEXCAN_TX_MB_RESERVED_RX_FIFO	8
+#define FLEXCAN_TX_MB_RESERVED_RX_MAILBOX	0
+#define FLEXCAN_RX_MB_RX_MAILBOX_FIRST	(FLEXCAN_TX_MB_RESERVED_RX_MAILBOX + 1)
 #define FLEXCAN_IFLAG_MB(x)		BIT_ULL(x)
 #define FLEXCAN_IFLAG_RX_FIFO_OVERFLOW	BIT(7)
 #define FLEXCAN_IFLAG_RX_FIFO_WARN	BIT(6)
@@ -234,8 +234,8 @@
 #define FLEXCAN_QUIRK_ENABLE_EACEN_RRS  BIT(3)
 /* Disable non-correctable errors interrupt and freeze mode */
 #define FLEXCAN_QUIRK_DISABLE_MECR BIT(4)
-/* Use timestamp based offloading */
-#define FLEXCAN_QUIRK_USE_OFF_TIMESTAMP BIT(5)
+/* Use mailboxes (not FIFO) for RX path */
+#define FLEXCAN_QUIRK_USE_RX_MAILBOX BIT(5)
 /* No interrupt for error passive */
 #define FLEXCAN_QUIRK_BROKEN_PERR_STATE BIT(6)
 /* default to BE register access */
@@ -402,38 +402,38 @@ static const struct flexcan_devtype_data fsl_imx28_devtype_data = {
 
 static const struct flexcan_devtype_data fsl_imx6q_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
-		FLEXCAN_QUIRK_USE_OFF_TIMESTAMP | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
+		FLEXCAN_QUIRK_USE_RX_MAILBOX | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
 		FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR,
 };
 
 static const struct flexcan_devtype_data fsl_imx8qm_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
-		FLEXCAN_QUIRK_USE_OFF_TIMESTAMP | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
+		FLEXCAN_QUIRK_USE_RX_MAILBOX | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
 		FLEXCAN_QUIRK_SUPPORT_FD | FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW,
 };
 
 static struct flexcan_devtype_data fsl_imx8mp_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
-		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_OFF_TIMESTAMP |
+		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_RX_MAILBOX |
 		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR |
 		FLEXCAN_QUIRK_SUPPORT_FD | FLEXCAN_QUIRK_SUPPORT_ECC,
 };
 
 static const struct flexcan_devtype_data fsl_vf610_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
-		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_OFF_TIMESTAMP |
+		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_RX_MAILBOX |
 		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_SUPPORT_ECC,
 };
 
 static const struct flexcan_devtype_data fsl_ls1021a_r2_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
-		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_USE_OFF_TIMESTAMP,
+		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_USE_RX_MAILBOX,
 };
 
 static const struct flexcan_devtype_data fsl_lx2160a_r1_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
 		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
-		FLEXCAN_QUIRK_USE_OFF_TIMESTAMP | FLEXCAN_QUIRK_SUPPORT_FD |
+		FLEXCAN_QUIRK_USE_RX_MAILBOX | FLEXCAN_QUIRK_SUPPORT_FD |
 		FLEXCAN_QUIRK_SUPPORT_ECC,
 };
 
@@ -1018,7 +1018,7 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload,
 
 	mb = flexcan_get_mb(priv, n);
 
-	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX) {
 		u32 code;
 
 		do {
@@ -1083,7 +1083,7 @@ static struct sk_buff *flexcan_mailbox_read(struct can_rx_offload *offload,
 	}
 
  mark_as_read:
-	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX)
 		flexcan_write64(priv, FLEXCAN_IFLAG_MB(n), &regs->iflag1);
 	else
 		priv->write(FLEXCAN_IFLAG_RX_FIFO_AVAILABLE, &regs->iflag1);
@@ -1109,7 +1109,7 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 	enum can_state last_state = priv->can.state;
 
 	/* reception interrupt */
-	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX) {
 		u64 reg_iflag_rx;
 		int ret;
 
@@ -1429,20 +1429,20 @@ static int flexcan_rx_offload_setup(struct net_device *dev)
 		priv->mb_count = (sizeof(priv->regs->mb[0]) / priv->mb_size) +
 				 (sizeof(priv->regs->mb[1]) / priv->mb_size);
 
-	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX)
 		priv->tx_mb_reserved =
-			flexcan_get_mb(priv, FLEXCAN_TX_MB_RESERVED_OFF_TIMESTAMP);
+			flexcan_get_mb(priv, FLEXCAN_TX_MB_RESERVED_RX_MAILBOX);
 	else
 		priv->tx_mb_reserved =
-			flexcan_get_mb(priv, FLEXCAN_TX_MB_RESERVED_OFF_FIFO);
+			flexcan_get_mb(priv, FLEXCAN_TX_MB_RESERVED_RX_FIFO);
 	priv->tx_mb_idx = priv->mb_count - 1;
 	priv->tx_mb = flexcan_get_mb(priv, priv->tx_mb_idx);
 	priv->tx_mask = FLEXCAN_IFLAG_MB(priv->tx_mb_idx);
 
 	priv->offload.mailbox_read = flexcan_mailbox_read;
 
-	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
-		priv->offload.mb_first = FLEXCAN_RX_MB_OFF_TIMESTAMP_FIRST;
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX) {
+		priv->offload.mb_first = FLEXCAN_RX_MB_RX_MAILBOX_FIRST;
 		priv->offload.mb_last = priv->mb_count - 2;
 
 		priv->rx_mask = GENMASK_ULL(priv->offload.mb_last,
@@ -1532,10 +1532,10 @@ static int flexcan_chip_start(struct net_device *dev)
 	/* MCR
 	 *
 	 * FIFO:
-	 * - disable for timestamp mode
+	 * - disable for mailbox mode
 	 * - enable for FIFO mode
 	 */
-	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX)
 		reg_mcr &= ~FLEXCAN_MCR_FEN;
 	else
 		reg_mcr |= FLEXCAN_MCR_FEN;
@@ -1631,7 +1631,7 @@ static int flexcan_chip_start(struct net_device *dev)
 		priv->write(reg_fdctrl, &regs->fdctrl);
 	}
 
-	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
+	if (priv->devtype_data.quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX) {
 		for (i = priv->offload.mb_first; i <= priv->offload.mb_last; i++) {
 			mb = flexcan_get_mb(priv, i);
 			priv->write(FLEXCAN_MB_CODE_RX_EMPTY,
@@ -1639,7 +1639,7 @@ static int flexcan_chip_start(struct net_device *dev)
 		}
 	} else {
 		/* clear and invalidate unused mailboxes first */
-		for (i = FLEXCAN_TX_MB_RESERVED_OFF_FIFO; i < priv->mb_count; i++) {
+		for (i = FLEXCAN_TX_MB_RESERVED_RX_FIFO; i < priv->mb_count; i++) {
 			mb = flexcan_get_mb(priv, i);
 			priv->write(FLEXCAN_MB_CODE_RX_INACTIVE,
 				    &mb->can_ctrl);
@@ -2164,7 +2164,7 @@ static int flexcan_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	if ((devtype_data->quirks & FLEXCAN_QUIRK_SUPPORT_FD) &&
-	    !(devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP)) {
+	    !(devtype_data->quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX)) {
 		dev_err(&pdev->dev, "CAN-FD mode doesn't work with FIFO mode!\n");
 		return -EINVAL;
 	}
-- 
2.34.1

[PATCH AUTOSEL 5.15 186/188] can: flexcan: add more quirks to describe RX path capabilities

[Sasha Levin]

From: Marc Kleine-Budde <mkl@pengutronix.de>

[ Upstream commit c5c88591040ee7d84d037328eed9019d3ffab821 ]

Most flexcan IP cores support 2 RX modes:
- FIFO
- mailbox

Some IP core versions cannot receive CAN RTR messages via mailboxes.
This patch adds quirks to document this.

This information will be used in a later patch to switch from FIFO to
more performant mailbox mode at the expense of losing the ability to
receive RTR messages. This trade off is beneficial in certain use
cases.

Link: https://lore.kernel.org/all/20220107193105.1699523-5-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/flexcan.c | 66 ++++++++++++++++++++++++++++++++-------
 1 file changed, 54 insertions(+), 12 deletions(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 02299befe2852..18d7bb99ec1bd 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -252,6 +252,12 @@
 #define FLEXCAN_QUIRK_NR_IRQ_3 BIT(12)
 /* Setup 16 mailboxes */
 #define FLEXCAN_QUIRK_NR_MB_16 BIT(13)
+/* Device supports RX via mailboxes */
+#define FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX BIT(14)
+/* Device supports RTR reception via mailboxes */
+#define FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR BIT(15)
+/* Device supports RX via FIFO */
+#define FLEXCAN_QUIRK_SUPPPORT_RX_FIFO BIT(16)
 
 /* Structure of the message buffer */
 struct flexcan_mb {
@@ -382,59 +388,78 @@ struct flexcan_priv {
 
 static const struct flexcan_devtype_data fsl_mcf5441x_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_BROKEN_PERR_STATE |
-		FLEXCAN_QUIRK_NR_IRQ_3 | FLEXCAN_QUIRK_NR_MB_16,
+		FLEXCAN_QUIRK_NR_IRQ_3 | FLEXCAN_QUIRK_NR_MB_16 |
+		FLEXCAN_QUIRK_SUPPPORT_RX_FIFO,
 };
 
 static const struct flexcan_devtype_data fsl_p1010_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_BROKEN_WERR_STATE |
 		FLEXCAN_QUIRK_BROKEN_PERR_STATE |
-		FLEXCAN_QUIRK_DEFAULT_BIG_ENDIAN,
+		FLEXCAN_QUIRK_DEFAULT_BIG_ENDIAN |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_FIFO,
 };
 
 static const struct flexcan_devtype_data fsl_imx25_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_BROKEN_WERR_STATE |
-		FLEXCAN_QUIRK_BROKEN_PERR_STATE,
+		FLEXCAN_QUIRK_BROKEN_PERR_STATE |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_FIFO,
 };
 
 static const struct flexcan_devtype_data fsl_imx28_devtype_data = {
-	.quirks = FLEXCAN_QUIRK_BROKEN_PERR_STATE,
+	.quirks = FLEXCAN_QUIRK_BROKEN_PERR_STATE |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_FIFO,
 };
 
 static const struct flexcan_devtype_data fsl_imx6q_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
 		FLEXCAN_QUIRK_USE_RX_MAILBOX | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
-		FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR,
+		FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR,
 };
 
 static const struct flexcan_devtype_data fsl_imx8qm_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
 		FLEXCAN_QUIRK_USE_RX_MAILBOX | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
-		FLEXCAN_QUIRK_SUPPORT_FD | FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW,
+		FLEXCAN_QUIRK_SUPPORT_FD | FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR,
 };
 
 static struct flexcan_devtype_data fsl_imx8mp_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
 		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_RX_MAILBOX |
 		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR |
-		FLEXCAN_QUIRK_SUPPORT_FD | FLEXCAN_QUIRK_SUPPORT_ECC,
+		FLEXCAN_QUIRK_SUPPORT_FD | FLEXCAN_QUIRK_SUPPORT_ECC |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR,
 };
 
 static const struct flexcan_devtype_data fsl_vf610_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
 		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_RX_MAILBOX |
-		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_SUPPORT_ECC,
+		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_SUPPORT_ECC |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR,
 };
 
 static const struct flexcan_devtype_data fsl_ls1021a_r2_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
-		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_USE_RX_MAILBOX,
+		FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_USE_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR,
 };
 
 static const struct flexcan_devtype_data fsl_lx2160a_r1_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
 		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
 		FLEXCAN_QUIRK_USE_RX_MAILBOX | FLEXCAN_QUIRK_SUPPORT_FD |
-		FLEXCAN_QUIRK_SUPPORT_ECC,
+		FLEXCAN_QUIRK_SUPPORT_ECC |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR,
 };
 
 static const struct can_bittiming_const flexcan_bittiming_const = {
@@ -2164,8 +2189,25 @@ static int flexcan_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	if ((devtype_data->quirks & FLEXCAN_QUIRK_SUPPORT_FD) &&
-	    !(devtype_data->quirks & FLEXCAN_QUIRK_USE_RX_MAILBOX)) {
-		dev_err(&pdev->dev, "CAN-FD mode doesn't work with FIFO mode!\n");
+	    !((devtype_data->quirks &
+	       (FLEXCAN_QUIRK_USE_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+		FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR |
+		FLEXCAN_QUIRK_SUPPPORT_RX_FIFO)) ==
+	      (FLEXCAN_QUIRK_USE_RX_MAILBOX |
+	       FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+	       FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR))) {
+		dev_err(&pdev->dev, "CAN-FD mode doesn't work in RX-FIFO mode!\n");
+		return -EINVAL;
+	}
+
+	if ((devtype_data->quirks &
+	     (FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX |
+	      FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR)) ==
+	    FLEXCAN_QUIRK_SUPPPORT_RX_MAILBOX_RTR) {
+		dev_err(&pdev->dev,
+			"Quirks (0x%08x) inconsistent: RX_MAILBOX_RX supported but not RX_MAILBOX\n",
+			devtype_data->quirks);
 		return -EINVAL;
 	}
 
-- 
2.34.1