Commit-ID:  b2e02b820d5b42479195b89d3d73f31bcedb264e
Gitweb:     http://git.kernel.org/tip/b2e02b820d5b42479195b89d3d73f31bcedb264e
Author:     Brian Gerst <[email protected]>
AuthorDate: Mon, 22 Jun 2015 07:55:11 -0400
Committer:  Ingo Molnar <[email protected]>
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 <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 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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