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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2010-08-29 20:45:40 -0400
committerH. Peter Anvin <hpa@linux.intel.com>2010-09-13 17:48:41 -0400
commit2fd818642a3c3a257f3b1262145a52bc1bfebd26 (patch)
treeb94d047e6a71efc3d80dcf9ae1b1c5a4fa9e9108 /arch/x86/include
parent36ac4b987bea9a95217e1af552252f275ca7fc44 (diff)
x86, cpufeature: Suppress compiler warning with gcc 3.x
Gcc 3.x generates a warning arch/x86/include/asm/cpufeature.h: In function `__static_cpu_has': arch/x86/include/asm/cpufeature.h:326: warning: asm operand 1 probably doesn't match constraints on each file. But static_cpu_has() for gcc 3.x does not need __static_cpu_has(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> LKML-Reference: <201008300127.o7U1RC6Z044051@www262.sakura.ne.jp> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/cpufeature.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 781a50b29a49..c6fbb7b430d1 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -296,6 +296,7 @@ extern const char * const x86_power_flags[32];
296 296
297#endif /* CONFIG_X86_64 */ 297#endif /* CONFIG_X86_64 */
298 298
299#if __GNUC__ >= 4
299/* 300/*
300 * Static testing of CPU features. Used the same as boot_cpu_has(). 301 * Static testing of CPU features. Used the same as boot_cpu_has().
301 * These are only valid after alternatives have run, but will statically 302 * These are only valid after alternatives have run, but will statically
@@ -304,7 +305,7 @@ extern const char * const x86_power_flags[32];
304 */ 305 */
305static __always_inline __pure bool __static_cpu_has(u16 bit) 306static __always_inline __pure bool __static_cpu_has(u16 bit)
306{ 307{
307#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) 308#if __GNUC__ > 4 || __GNUC_MINOR__ >= 5
308 asm goto("1: jmp %l[t_no]\n" 309 asm goto("1: jmp %l[t_no]\n"
309 "2:\n" 310 "2:\n"
310 ".section .altinstructions,\"a\"\n" 311 ".section .altinstructions,\"a\"\n"
@@ -345,7 +346,6 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
345#endif 346#endif
346} 347}
347 348
348#if __GNUC__ >= 4
349#define static_cpu_has(bit) \ 349#define static_cpu_has(bit) \
350( \ 350( \
351 __builtin_constant_p(boot_cpu_has(bit)) ? \ 351 __builtin_constant_p(boot_cpu_has(bit)) ? \