x86/fpu: Remove fpu_xsave()

It's a pointless wrapper now - use xsave_state().

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index b1f5dd6..95e04cb 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -265,7 +265,7 @@
 static inline int fpu_save_init(struct fpu *fpu)
 {
 	if (use_xsave()) {
-		fpu_xsave(fpu);
+		xsave_state(&fpu->state->xsave);
 
 		/*
 		 * xsave header may indicate the init state of the FP.