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kernel/reboot.c: add devm_register_reboot_notifier()

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Add devm_* wrapper around register_reboot_notifier to simplify device
specific reboot notifier registration/unregistration.

[akpm@linux-foundation.org: move `struct device' forward decl to top-of-file]
Link: http://lkml.kernel.org/r/20170320171753.1705-1-andrew.smirnov@gmail.com
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrey Smirnov 2017-11-17 15:30:57 -08:00 • committed by Linus Torvalds
parent c512ac01d8
commit 2d8364bae4
2 changed files with 31 additions and 0 deletions
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4
include/linux/reboot.h
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@ -6,6 +6,8 @@
#include <linux/notifier.h>
#include <uapi/linux/reboot.h>
struct device;
#define SYS_DOWN 0x0001 /* Notify of system down */
#define SYS_RESTART SYS_DOWN
#define SYS_HALT 0x0002 /* Notify of system halt */
@ -39,6 +41,8 @@ extern int reboot_force;
extern int register_reboot_notifier(struct notifier_block *);
extern int unregister_reboot_notifier(struct notifier_block *);
extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);
extern int register_restart_handler(struct notifier_block *);
extern int unregister_restart_handler(struct notifier_block *);
extern void do_kernel_restart(char *cmd);