From: H. Peter Anvin Date: Wed, 12 May 2010 00:49:54 +0000 (-0700) Subject: x86, fpu: Use static_cpu_has() to implement use_xsave() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c9775b4cc522e5f1b40b1366a993f0f05f600f39;p=linux-beck.git x86, fpu: Use static_cpu_has() to implement use_xsave() use_xsave() is now just a special case of static_cpu_has(), so use static_cpu_has(). Signed-off-by: H. Peter Anvin Cc: Avi Kivity Cc: Suresh Siddha LKML-Reference: <1273135546-29690-2-git-send-email-avi@redhat.com> --- diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h index 8002e9ce25fc..c991b3a7b904 100644 --- a/arch/x86/include/asm/i387.h +++ b/arch/x86/include/asm/i387.h @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -57,16 +58,9 @@ extern int restore_i387_xstate_ia32(void __user *buf); #define X87_FSW_ES (1 << 7) /* Exception Summary */ -static inline bool use_xsave(void) +static __always_inline __pure bool use_xsave(void) { - u8 has_xsave; - - alternative_io("mov $0, %0", - "mov $1, %0", - X86_FEATURE_XSAVE, - "=qm" (has_xsave)); - - return has_xsave; + return static_cpu_has(X86_FEATURE_XSAVE); } #ifdef CONFIG_X86_64