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Subject[patch] use __asm__ and __volatile__ in asm-x86_64/msr.h
Date
Most of the macros in msr.h already use __asm__ and __volatile__, this patch
brings the rest into line. This is needed since these get exported into
userspace (need to use strict __asm__ vs asm when gcc compiles with GNU
extensions turned off).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index d5c55b8..ed15d2b 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -33,7 +33,7 @@

/* wrmsr with exception handling */
#define wrmsr_safe(msr,a,b) ({ int ret__; \
- asm volatile("2: wrmsr ; xorl %0,%0\n" \
+ __asm__ __volatile__("2: wrmsr ; xorl %0,%0\n" \
"1:\n\t" \
".section .fixup,\"ax\"\n\t" \
"3: movl %4,%0 ; jmp 1b\n\t" \
@@ -50,7 +50,7 @@

#define rdmsr_safe(msr,a,b) \
({ int ret__; \
- asm volatile ("1: rdmsr\n" \
+ __asm__ __volatile__ ("1: rdmsr\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3: movl %4,%0\n" \
@@ -70,17 +70,17 @@
__asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")

#define rdtscp(low,high,aux) \
- asm volatile (".byte 0x0f,0x01,0xf9" : "=a" (low), "=d" (high), "=c" (aux))
+ __asm__ __volatile__ (".byte 0x0f,0x01,0xf9" : "=a" (low), "=d" (high), "=c" (aux))

#define rdtscll(val) do { \
unsigned int __a,__d; \
- asm volatile("rdtsc" : "=a" (__a), "=d" (__d)); \
+ __asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); \
(val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \
} while(0)

#define rdtscpll(val, aux) do { \
unsigned long __a, __d; \
- asm volatile (".byte 0x0f,0x01,0xf9" : "=a" (__a), "=d" (__d), "=c" (aux)); \
+ __asm__ __volatile__ (".byte 0x0f,0x01,0xf9" : "=a" (__a), "=d" (__d), "=c" (aux)); \
(val) = (__d << 32) | __a; \
} while (0)

-
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