4.9-stable review patch. If anyone has any objections, please let me know.
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From: Arnd Bergmann arnd@arndb.de
[ Upstream commit 328008a72d38b5bde6491e463405c34a81a65d3e ]
The declaration for swsusp_arch_resume marks it as 'asmlinkage', but the definition in x86-32 does not, and it fails to include the header with the declaration. This leads to a warning when building with link-time-optimizations:
kernel/power/power.h:108:23: error: type of 'swsusp_arch_resume' does not match original declaration [-Werror=lto-type-mismatch] extern asmlinkage int swsusp_arch_resume(void); ^ arch/x86/power/hibernate_32.c:148:0: note: 'swsusp_arch_resume' was previously declared here int swsusp_arch_resume(void)
This moves the declaration into a globally visible header file and fixes up both x86 definitions to match it.
Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: Len Brown len.brown@intel.com Cc: Andi Kleen ak@linux.intel.com Cc: Nicolas Pitre nico@linaro.org Cc: linux-pm@vger.kernel.org Cc: "Rafael J. Wysocki" rjw@rjwysocki.net Cc: Pavel Machek pavel@ucw.cz Cc: Bart Van Assche bart.vanassche@wdc.com Link: https://lkml.kernel.org/r/20180202145634.200291-2-arnd@arndb.de Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/power/hibernate_32.c | 2 +- arch/x86/power/hibernate_64.c | 2 +- include/linux/suspend.h | 2 ++ kernel/power/power.h | 3 --- 4 files changed, 4 insertions(+), 5 deletions(-)
--- a/arch/x86/power/hibernate_32.c +++ b/arch/x86/power/hibernate_32.c @@ -142,7 +142,7 @@ static inline void resume_init_first_lev #endif }
-int swsusp_arch_resume(void) +asmlinkage int swsusp_arch_resume(void) { int error;
--- a/arch/x86/power/hibernate_64.c +++ b/arch/x86/power/hibernate_64.c @@ -149,7 +149,7 @@ static int relocate_restore_code(void) return 0; }
-int swsusp_arch_resume(void) +asmlinkage int swsusp_arch_resume(void) { int error;
--- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -378,6 +378,8 @@ extern int swsusp_page_is_forbidden(stru extern void swsusp_set_page_free(struct page *); extern void swsusp_unset_page_free(struct page *); extern unsigned long get_safe_page(gfp_t gfp_mask); +extern asmlinkage int swsusp_arch_suspend(void); +extern asmlinkage int swsusp_arch_resume(void);
extern void hibernation_set_ops(const struct platform_hibernation_ops *ops); extern int hibernate(void); --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -103,9 +103,6 @@ extern int in_suspend; extern dev_t swsusp_resume_device; extern sector_t swsusp_resume_block;
-extern asmlinkage int swsusp_arch_suspend(void); -extern asmlinkage int swsusp_arch_resume(void); - extern int create_basic_memory_bitmaps(void); extern void free_basic_memory_bitmaps(void); extern int hibernate_preallocate_memory(void);