Commit-ID: b2e02b820d5b42479195b89d3d73f31bcedb264e
Gitweb: http://git.kernel.org/tip/b2e02b820d5b42479195b89d3d73f31bcedb264e
Author: Brian Gerst <brgerst@xxxxxxxxx>
AuthorDate: Mon, 22 Jun 2015 07:55:11 -0400
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 6 Jul 2015 15:28:55 +0200
x86/compat: Make mmap_is_ia32() common compat
TIF_ADDR32 is set for both ia32 and x32 tasks, so change from
CONFIG_IA32_EMULATION to CONFIG_COMPAT. Use config_enabled()
to make the function more readable.
Signed-off-by: Brian Gerst <brgerst@xxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1434974121-32575-3-git-send-email-brgerst@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/include/asm/elf.h | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index f161c18..180b6fe 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -344,14 +344,9 @@ extern int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
*/
static inline int mmap_is_ia32(void)
{
-#ifdef CONFIG_X86_32
- return 1;
-#endif
-#ifdef CONFIG_IA32_EMULATION
- if (test_thread_flag(TIF_ADDR32))
- return 1;
-#endif
- return 0;
+ return config_enabled(CONFIG_X86_32) ||
+ (config_enabled(CONFIG_COMPAT) &&
+ test_thread_flag(TIF_ADDR32));
}
/* Do not change the values. See get_align_mask() */
--
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