Commit-ID: 93f13a9f96771a064c716364aebc6e283b186eb8
Gitweb: http://git.kernel.org/tip/93f13a9f96771a064c716364aebc6e283b186eb8
Author: Borislav Petkov <b...@alien8.de>
AuthorDate: Mon, 21 Sep 2015 09:48:29 +0200
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Mon, 21 Sep 2015 09:56:59 +0200
x86/entry/vsyscall: Fix undefined symbol warning
Commit:
3dc33bd30f3e1 ("x86/entry/vsyscall: Add CONFIG to control default")
did the ifdef/elif thing but GCC doesn't like that:
arch/x86/entry/vsyscall/vsyscall_64.c:44:7: warning:
"CONFIG_LEGACY_VSYSCALL_NONE" is not defined [-Wundef]
#elif CONFIG_LEGACY_VSYSCALL_NONE
^
Use defined() instead.
Signed-off-by: Borislav Petkov <b...@suse.de>
Cc: Andy Lutomirski <l...@amacapital.net>
Cc: Brian Gerst <brge...@gmail.com>
Cc: Denys Vlasenko <dvlas...@redhat.com>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Josh Triplett <j...@joshtriplett.org>
Cc: Kees Cook <keesc...@chromium.org>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Link: http://lkml.kernel.org/r/20150921074829.ga3...@pd.tnic
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
arch/x86/entry/vsyscall/vsyscall_64.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c
b/arch/x86/entry/vsyscall/vsyscall_64.c
index 76e0fd3..174c254 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -39,9 +39,9 @@
#include "vsyscall_trace.h"
static enum { EMULATE, NATIVE, NONE } vsyscall_mode =
-#ifdef CONFIG_LEGACY_VSYSCALL_NATIVE
+#if defined(CONFIG_LEGACY_VSYSCALL_NATIVE)
NATIVE;
-#elif CONFIG_LEGACY_VSYSCALL_NONE
+#elif defined(CONFIG_LEGACY_VSYSCALL_NONE)
NONE;
#else
EMULATE;
--
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