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Commit c9775b4c authored by H. Peter Anvin's avatar H. Peter Anvin
Browse files

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: default avatarH. Peter Anvin <hpa@zytor.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <1273135546-29690-2-git-send-email-avi@redhat.com>
parent a3c8acd0

arch/x86/include/asm/i387.h

+3 −9
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/hardirq.h>

#include <linux/slab.h>

#include <asm/asm.h>

#include <asm/cpufeature.h>

#include <asm/processor.h>

#include <asm/sigcontext.h>

#include <asm/user.h>
@@ -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