diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-09-15 08:42:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-09-15 08:45:39 +0200 |
| commit | 91b7bd39e62e190700aa1398e451a6dfa6d24465 (patch) | |
| tree | efda1b5bf2040e8ad376888ba22f57dd1a46bbed /arch/x86/kernel/process_64.c | |
| parent | x86/signal: Add SA_{X32,IA32}_ABI sa_flags (diff) | |
| download | linux-91b7bd39e62e190700aa1398e451a6dfa6d24465.tar.xz linux-91b7bd39e62e190700aa1398e451a6dfa6d24465.zip | |
x86/vdso: Only define prctl_map_vdso() if CONFIG_CHECKPOINT_RESTORE
... otherwise the compiler complains:
arch/x86/kernel/process_64.c:528:13: warning: ‘prctl_map_vdso’ defined but not used [-Wunused-function]
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Dmitry Safonov <dsafonov@virtuozzo.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: gorcunov@openvz.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: oleg@redhat.com
Cc: xemul@virtuozzo.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index f240a465920b..b26a0092a01d 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -525,6 +525,7 @@ void set_personality_ia32(bool x32) } EXPORT_SYMBOL_GPL(set_personality_ia32); +#ifdef CONFIG_CHECKPOINT_RESTORE static long prctl_map_vdso(const struct vdso_image *image, unsigned long addr) { int ret; @@ -535,6 +536,7 @@ static long prctl_map_vdso(const struct vdso_image *image, unsigned long addr) return (long)image->size; } +#endif long do_arch_prctl(struct task_struct *task, int code, unsigned long addr) { @@ -590,14 +592,14 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr) } #ifdef CONFIG_CHECKPOINT_RESTORE -#ifdef CONFIG_X86_X32 +# ifdef CONFIG_X86_X32 case ARCH_MAP_VDSO_X32: return prctl_map_vdso(&vdso_image_x32, addr); -#endif -#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION +# endif +# if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION case ARCH_MAP_VDSO_32: return prctl_map_vdso(&vdso_image_32, addr); -#endif +# endif case ARCH_MAP_VDSO_64: return prctl_map_vdso(&vdso_image_64, addr); #endif |