[tip:x86/atomic] x86: Fix LOCK_PREFIX_HERE for uniprocessor build
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From: tip-bot for H. Peter Anvin on 30 Apr 2010 13:10 Commit-ID: b701a47ba48b698976fb2fe05fb285b0edc1d26a Gitweb: http://git.kernel.org/tip/b701a47ba48b698976fb2fe05fb285b0edc1d26a Author: H. Peter Anvin <hpa(a)zytor.com> AuthorDate: Thu, 29 Apr 2010 16:03:57 -0700 Committer: H. Peter Anvin <hpa(a)zytor.com> CommitDate: Thu, 29 Apr 2010 16:08:54 -0700 x86: Fix LOCK_PREFIX_HERE for uniprocessor build Checkin b3ac891b67bd4b1fc728d1c784cad1212dea433d: x86: Add support for lock prefix in alternatives .... did not define LOCK_PREFIX_HERE in the case of a uniprocessor build. As a result, it would cause any of the usages of this macro to fail on a uniprocessor build. Fix this by defining LOCK_PREFIX_HERE as a null string. Signed-off-by: H. Peter Anvin <hpa(a)zytor.com> Cc: Luca Barbieri <luca(a)luca-barbieri.com> LKML-Reference: <1267005265-27958-2-git-send-email-luca(a)luca-barbieri.com> --- arch/x86/include/asm/alternative.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index 55fee12..e29a6c9 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -38,6 +38,7 @@ #define LOCK_PREFIX LOCK_PREFIX_HERE "\n\tlock; " #else /* ! CONFIG_SMP */ +#define LOCK_PREFIX_HERE "" #define LOCK_PREFIX "" #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |