diff options
Diffstat (limited to 'arch/x86/include/asm/cpufeature.h')
-rw-r--r-- | arch/x86/include/asm/cpufeature.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index dca9c545f44e..468145914389 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h | |||
@@ -332,6 +332,7 @@ static __always_inline __pure bool __static_cpu_has(u8 bit) | |||
332 | #endif | 332 | #endif |
333 | } | 333 | } |
334 | 334 | ||
335 | #if __GNUC__ >= 4 | ||
335 | #define static_cpu_has(bit) \ | 336 | #define static_cpu_has(bit) \ |
336 | ( \ | 337 | ( \ |
337 | __builtin_constant_p(boot_cpu_has(bit)) ? \ | 338 | __builtin_constant_p(boot_cpu_has(bit)) ? \ |
@@ -340,6 +341,12 @@ static __always_inline __pure bool __static_cpu_has(u8 bit) | |||
340 | __static_cpu_has(bit) : \ | 341 | __static_cpu_has(bit) : \ |
341 | boot_cpu_has(bit) \ | 342 | boot_cpu_has(bit) \ |
342 | ) | 343 | ) |
344 | #else | ||
345 | /* | ||
346 | * gcc 3.x is too stupid to do the static test; fall back to dynamic. | ||
347 | */ | ||
348 | #define static_cpu_has(bit) boot_cpu_has(bit) | ||
349 | #endif | ||
343 | 350 | ||
344 | #endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */ | 351 | #endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */ |
345 | 352 | ||