From: Fenghua Yu Date: Tue, 17 May 2011 22:29:13 +0000 (-0700) Subject: x86, alternative: Add altinstruction_entry macro X-Git-Tag: v3.12-rc1~6123^2~5^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9072d11da15a71e086eab3b5085184f2c1d06913;p=kernel%2Fkernel-generic.git x86, alternative: Add altinstruction_entry macro Add altinstruction_entry macro to generate .altinstructions section entries from assembly code. This should be less failure-prone than open-coding. Signed-off-by: Fenghua Yu Link: http://lkml.kernel.org/r/1305671358-14478-5-git-send-email-fenghua.yu@intel.com Signed-off-by: H. Peter Anvin --- diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h index a63a68b..94d420b 100644 --- a/arch/x86/include/asm/alternative-asm.h +++ b/arch/x86/include/asm/alternative-asm.h @@ -15,4 +15,13 @@ .endm #endif +.macro altinstruction_entry orig alt feature orig_len alt_len + .align 8 + .quad \orig + .quad \alt + .word \feature + .byte \orig_len + .byte \alt_len +.endm + #endif /* __ASSEMBLY__ */