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x86: shrink __ALIGN and __ALIGN_STR definitions 

Impact: cleanup

1) .p2align 4 and .align 16 are the same meaning
   (until a.out format for i386 is used which is
    not our case for CONFIG_X86_ALIGNMENT_16 anyway)

2) having 15 as max allowed bytes to be skipped
   does not make sense on modulo 16

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
LKML-Reference: <20090309171951.GE9945@localhost>
[ small cleanup, use __stringify(), etc. ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Cyrill Gorcunov 2009-03-09 20:19:51 +03:00 committed by Ingo Molnar
parent 78b020d035
commit bb7f5f6c26
1 changed files with 5 additions and 8 deletions
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13
arch/x86/include/asm/linkage.h
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@ -1,6 +1,8 @@
#ifndef _ASM_X86_LINKAGE_H
#define _ASM_X86_LINKAGE_H
#include <linux/stringify.h>
#undef notrace
#define notrace __attribute__((no_instrument_function))
@ -53,14 +55,9 @@
.globl name; \
name:
#ifdef CONFIG_X86_64
#define __ALIGN .p2align 4,,15
#define __ALIGN_STR ".p2align 4,,15"
#endif
#ifdef CONFIG_X86_ALIGNMENT_16
#define __ALIGN .align 16,0x90
#define __ALIGN_STR ".align 16,0x90"
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
#define __ALIGN .p2align 4, 0x90
#define __ALIGN_STR __stringify(__ALIGN)
#endif
#endif /* __ASSEMBLY__ */