76f30759f6
Add header guards to protect <asm/alternative-asm.h> against multiple inclusion. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/1348256595-29119-6-git-send-email-hpa@linux.intel.com
31 lines
500 B
C
31 lines
500 B
C
#ifndef _ASM_X86_ALTERNATIVE_ASM_H
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#define _ASM_X86_ALTERNATIVE_ASM_H
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#ifdef __ASSEMBLY__
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#include <asm/asm.h>
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#ifdef CONFIG_SMP
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.macro LOCK_PREFIX
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672: lock
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.pushsection .smp_locks,"a"
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.balign 4
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.long 672b - .
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.popsection
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.endm
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#else
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.macro LOCK_PREFIX
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.endm
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#endif
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.macro altinstruction_entry orig alt feature orig_len alt_len
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.long \orig - .
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.long \alt - .
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.word \feature
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.byte \orig_len
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.byte \alt_len
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.endm
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_X86_ALTERNATIVE_ASM_H */
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