From: Arnd Bergmann <arnd@xxxxxxxx>
[ 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@xxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Nicolas Pitre <nico@xxxxxxxxxx>
Cc: linux-pm@xxxxxxxxxxxxxxx
Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
Cc: Pavel Machek <pavel@xxxxxx>
Cc: Bart Van Assche <bart.vanassche@xxxxxxx>
Link: https://lkml.kernel.org/r/20180202145634.200291-2-arnd@xxxxxxxx
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
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(-)
diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c
index 291226b952a9..77ac4e4deb16 100644
--- a/arch/x86/power/hibernate_32.c
+++ b/arch/x86/power/hibernate_32.c
@@ -142,7 +142,7 @@ static inline void resume_init_first_level_page_table(pgd_t *pg_dir)
#endif
}
-int swsusp_arch_resume(void)
+asmlinkage int swsusp_arch_resume(void)
{
int error;
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index 009947d419a6..0e0c773edffc 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -78,7 +78,7 @@ static int set_up_temporary_mappings(void)
return 0;
}
-int swsusp_arch_resume(void)
+asmlinkage int swsusp_arch_resume(void)
{
int error;
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 8b6ec7ef0854..4a69bca7c6ab 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -377,6 +377,8 @@ extern int swsusp_page_is_forbidden(struct page *);
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);
diff --git a/kernel/power/power.h b/kernel/power/power.h
index caadb566e82b..25367fc0b152 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -85,9 +85,6 @@ 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);
--
2.15.1