From: Coly Li <colyli@suse.de>
To: axboe@kernel.dk
Cc: linux-bcache@vger.kernel.org, linux-block@vger.kernel.org,
"Thomas Weißschuh" <linux@weissschuh.net>,
"Coly Li" <colyli@suse.de>
Subject: [PATCH 2/6] bcache: make kobj_type structures constant
Date: Thu, 15 Jun 2023 20:12:19 +0800 [thread overview]
Message-ID: <20230615121223.22502-3-colyli@suse.de> (raw)
In-Reply-To: <20230615121223.22502-1-colyli@suse.de>
From: Thomas Weißschuh <linux@weissschuh.net>
Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.
Take advantage of this to constify the structure definitions to prevent
modification at runtime.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Coly Li <colyli@suse.de>
---
drivers/md/bcache/bcache.h | 10 +++++-----
drivers/md/bcache/sysfs.h | 2 +-
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index aebb7ef10e63..a522f4f1f992 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -1004,11 +1004,11 @@ extern struct workqueue_struct *bch_flush_wq;
extern struct mutex bch_register_lock;
extern struct list_head bch_cache_sets;
-extern struct kobj_type bch_cached_dev_ktype;
-extern struct kobj_type bch_flash_dev_ktype;
-extern struct kobj_type bch_cache_set_ktype;
-extern struct kobj_type bch_cache_set_internal_ktype;
-extern struct kobj_type bch_cache_ktype;
+extern const struct kobj_type bch_cached_dev_ktype;
+extern const struct kobj_type bch_flash_dev_ktype;
+extern const struct kobj_type bch_cache_set_ktype;
+extern const struct kobj_type bch_cache_set_internal_ktype;
+extern const struct kobj_type bch_cache_ktype;
void bch_cached_dev_release(struct kobject *kobj);
void bch_flash_dev_release(struct kobject *kobj);
diff --git a/drivers/md/bcache/sysfs.h b/drivers/md/bcache/sysfs.h
index a2ff6447b699..65b8bd975ab1 100644
--- a/drivers/md/bcache/sysfs.h
+++ b/drivers/md/bcache/sysfs.h
@@ -3,7 +3,7 @@
#define _BCACHE_SYSFS_H_
#define KTYPE(type) \
-struct kobj_type type ## _ktype = { \
+const struct kobj_type type ## _ktype = { \
.release = type ## _release, \
.sysfs_ops = &((const struct sysfs_ops) { \
.show = type ## _show, \
--
2.35.3
next prev parent reply other threads:[~2023-06-15 12:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-15 12:12 [PATCH 0/6] bcache-next 20230615 Coly Li
2023-06-15 12:12 ` [PATCH 1/6] bcache: Convert to use sysfs_emit()/sysfs_emit_at() APIs Coly Li
2023-06-15 12:12 ` Coly Li [this message]
2023-06-15 12:12 ` [PATCH 3/6] bcache: Remove dead references to cache_readaheads Coly Li
2023-06-15 12:12 ` [PATCH 4/6] bcache: Remove some unnecessary NULL point check for the return value of __bch_btree_node_alloc-related pointer Coly Li
2023-06-15 12:12 ` [PATCH 5/6] bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent Coly Li
2023-06-15 12:12 ` [PATCH 6/6] bcache: fixup btree_cache_wait list damage Coly Li
2023-06-15 13:33 ` [PATCH 0/6] bcache-next 20230615 Jens Axboe
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