Commit 299af26e authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Richard Weinberger
Browse files

mtd: ubi: make ubi_class constant 



Since commit 43a7206b ("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: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRicardo B. Marliere <ricardo@marliere.net>
Reviewed-by: default avatarZhihao Cheng <chengzhihao1@huawei.com>
Reviewed-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent 745d9f4a

drivers/mtd/ubi/build.c

+1 −1
Original line number Diff line number Diff line
@@ -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,

};

drivers/mtd/ubi/ubi.h

+1 −1
Original line number Diff line number Diff line
@@ -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;