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reboot: move reboot_notifier_list to kernel/reboot.c

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All the functions related to the reboot notifier list are in
kernel/reboot.c.  Move the list itself, too.  As there are no direct users
anymore, make the declaration static.

Link: https://lkml.kernel.org/r/20241012-reboot_notifier_list-v1-1-6093bb9455ce@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Thomas Weißschuh 2024-10-12 19:52:53 +02:00 committed by Andrew Morton
parent 834b251b1d
commit f2fa0fd4e7
3 changed files with 7 additions and 10 deletions
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2
include/linux/notifier.h
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@ -237,7 +237,5 @@ static inline int notifier_to_errno(int ret)
#define KBD_KEYSYM 0x0004 /* Keyboard keysym */ #define KBD_KEYSYM 0x0004 /* Keyboard keysym */
#define KBD_POST_KEYSYM 0x0005 /* Called after keyboard keysym interpretation */ #define KBD_POST_KEYSYM 0x0005 /* Called after keyboard keysym interpretation */
extern struct blocking_notifier_head reboot_notifier_list;
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */
#endif /* _LINUX_NOTIFIER_H */ #endif /* _LINUX_NOTIFIER_H */

8
kernel/notifier.c
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@ -5,18 +5,10 @@
#include <linux/notifier.h> #include <linux/notifier.h>
#include <linux/rcupdate.h> #include <linux/rcupdate.h>
#include <linux/vmalloc.h> #include <linux/vmalloc.h>
#include <linux/reboot.h>
#define CREATE_TRACE_POINTS #define CREATE_TRACE_POINTS
#include <trace/events/notifier.h> #include <trace/events/notifier.h>
/*
* Notifier list for kernel code which wants to be called
* at shutdown. This is used to stop any idling DMA operations
* and the like.
*/
BLOCKING_NOTIFIER_HEAD(reboot_notifier_list);
/* /*
* Notifier chain core routines. The exported routines below * Notifier chain core routines. The exported routines below
* are layered on top of these, with appropriate locking added. * are layered on top of these, with appropriate locking added.

7
kernel/reboot.c
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@ -72,6 +72,13 @@ static bool poweroff_fallback_to_halt;
*/ */
void __weak (*pm_power_off)(void); void __weak (*pm_power_off)(void);
/*
* Notifier list for kernel code which wants to be called
* at shutdown. This is used to stop any idling DMA operations
* and the like.
*/
static BLOCKING_NOTIFIER_HEAD(reboot_notifier_list);
/** /**
* emergency_restart - reboot the system * emergency_restart - reboot the system
* *