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mtd: ubi: make ubi_class constant

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Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the ubi_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Ricardo B. Marliere 2024-03-05 16:35:38 -03:00 committed by Richard Weinberger
parent 745d9f4a31
commit 299af26eb4
2 changed files with 2 additions and 2 deletions
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2
drivers/mtd/ubi/build.c
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@ -112,7 +112,7 @@ static struct attribute *ubi_class_attrs[] = {
ATTRIBUTE_GROUPS(ubi_class);
/* Root UBI "class" object (corresponds to '/<sysfs>/class/ubi/') */
struct class ubi_class = {
const struct class ubi_class = {
.name = UBI_NAME_STR,
.class_groups = ubi_class_groups,
};

2
drivers/mtd/ubi/ubi.h
View File

@ -814,7 +814,7 @@ extern struct kmem_cache *ubi_wl_entry_slab;
extern const struct file_operations ubi_ctrl_cdev_operations;
extern const struct file_operations ubi_cdev_operations;
extern const struct file_operations ubi_vol_cdev_operations;
extern struct class ubi_class;
extern const struct class ubi_class;
extern struct mutex ubi_devices_mutex;
extern struct blocking_notifier_head ubi_notifiers;