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authorH. Peter Anvin <hpa@linux.intel.com>2012-09-21 23:43:08 +0400
committerH. Peter Anvin <hpa@linux.intel.com>2012-09-21 23:45:25 +0400
commit9cebed423c84a56b871327dd77e555d1d2186a6b (patch)
tree7e8a59f760e1035d227b410bdeff22338807900e /arch/x86/include/asm/alternative.h
parent85fdf05cc395f23384cb0adb22765cbaa9653b54 (diff)
downloadlinux-9cebed423c84a56b871327dd77e555d1d2186a6b.tar.xz
x86, alternative: Use .pushsection/.popsection
.section/.previous doesn't nest. Use .pushsection/.popsection in <asm/alternative.h> so that they can be properly nested. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/1348256595-29119-5-git-send-email-hpa@linux.intel.com
Diffstat (limited to 'arch/x86/include/asm/alternative.h')
-rw-r--r--arch/x86/include/asm/alternative.h32
1 files changed, 16 insertions, 16 deletions
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 70780689599a..87bc00d4efe9 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -29,10 +29,10 @@
#ifdef CONFIG_SMP
#define LOCK_PREFIX_HERE \
- ".section .smp_locks,\"a\"\n" \
- ".balign 4\n" \
- ".long 671f - .\n" /* offset */ \
- ".previous\n" \
+ ".pushsection .smp_locks,\"a\"\n" \
+ ".balign 4\n" \
+ ".long 671f - .\n" /* offset */ \
+ ".popsection\n" \
"671:"
#define LOCK_PREFIX LOCK_PREFIX_HERE "\n\tlock; "
@@ -99,30 +99,30 @@ static inline int alternatives_text_reserved(void *start, void *end)
/* alternative assembly primitive: */
#define ALTERNATIVE(oldinstr, newinstr, feature) \
OLDINSTR(oldinstr) \
- ".section .altinstructions,\"a\"\n" \
+ ".pushsection .altinstructions,\"a\"\n" \
ALTINSTR_ENTRY(feature, 1) \
- ".previous\n" \
- ".section .discard,\"aw\",@progbits\n" \
+ ".popsection\n" \
+ ".pushsection .discard,\"aw\",@progbits\n" \
DISCARD_ENTRY(1) \
- ".previous\n" \
- ".section .altinstr_replacement, \"ax\"\n" \
+ ".popsection\n" \
+ ".pushsection .altinstr_replacement, \"ax\"\n" \
ALTINSTR_REPLACEMENT(newinstr, feature, 1) \
- ".previous"
+ ".popsection"
#define ALTERNATIVE_2(oldinstr, newinstr1, feature1, newinstr2, feature2)\
OLDINSTR(oldinstr) \
- ".section .altinstructions,\"a\"\n" \
+ ".pushsection .altinstructions,\"a\"\n" \
ALTINSTR_ENTRY(feature1, 1) \
ALTINSTR_ENTRY(feature2, 2) \
- ".previous\n" \
- ".section .discard,\"aw\",@progbits\n" \
+ ".popsection\n" \
+ ".pushsection .discard,\"aw\",@progbits\n" \
DISCARD_ENTRY(1) \
DISCARD_ENTRY(2) \
- ".previous\n" \
- ".section .altinstr_replacement, \"ax\"\n" \
+ ".popsection\n" \
+ ".pushsection .altinstr_replacement, \"ax\"\n" \
ALTINSTR_REPLACEMENT(newinstr1, feature1, 1) \
ALTINSTR_REPLACEMENT(newinstr2, feature2, 2) \
- ".previous"
+ ".popsection"
/*
* This must be included *after* the definition of ALTERNATIVE due to