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PM: hibernate: powerpc: Expose pfn_is_nosave() prototype

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The declaration for pfn_is_nosave is only available in
kernel/power/power.h. Since this function can be override in arch,
expose it globally. Having a prototype will make sure to avoid warning
(sometime treated as error with W=1) such as:

  arch/powerpc/kernel/suspend.c:18:5: error: no previous prototype for 'pfn_is_nosave' [-Werror=missing-prototypes]

This moves the declaration into a globally visible header file and add
missing include to avoid a warning on powerpc.

Also remove the duplicated prototypes since not required anymore.

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Mathieu Malaterre
2019-05-24 12:44:18 +02:00
committed by Rafael J. Wysocki
parent d1fdb6d8f6
commit 1ec0cd8286
4 changed files with 2 additions and 3 deletions
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1
include/linux/suspend.h
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@@ -426,6 +426,7 @@ extern bool system_entering_hibernation(void);
extern bool hibernation_available(void);
asmlinkage int swsusp_save(void);
extern struct pbe *restore_pblist;
int pfn_is_nosave(unsigned long pfn);
#else /* CONFIG_HIBERNATION */
static inline void register_nosave_region(unsigned long b, unsigned long e) {}
static inline void register_nosave_region_late(unsigned long b, unsigned long e) {}