From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 15 Oct 2021 01:09:31 +0200
Subject: x86/fpu: Cleanup fpu__init_system_xstate_size_legacy()
Git-commit: 617473acdfe45aa9aa2be23cd5b02da7cd2717f8
Patch-mainline: v5.15 or v5.15-rc8 (next release)
References: jsc#SLE-18931

Clean the function up before making changes.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211014230739.184014242@linutronix.de
---
 arch/x86/kernel/fpu/init.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index 65d763faace9..c9293ade321d 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -199,17 +199,12 @@ static void __init fpu__init_system_xstate_size_legacy(void)
 	 * Note that xstate sizes might be overwritten later during
 	 * fpu__init_system_xstate().
 	 */
-
-	if (!boot_cpu_has(X86_FEATURE_FPU)) {
+	if (!cpu_feature_enabled(X86_FEATURE_FPU))
 		fpu_kernel_xstate_size = sizeof(struct swregs_state);
-	} else {
-		if (boot_cpu_has(X86_FEATURE_FXSR))
-			fpu_kernel_xstate_size =
-				sizeof(struct fxregs_state);
-		else
-			fpu_kernel_xstate_size =
-				sizeof(struct fregs_state);
-	}
+	else if (cpu_feature_enabled(X86_FEATURE_FXSR))
+		fpu_kernel_xstate_size = sizeof(struct fxregs_state);
+	else
+		fpu_kernel_xstate_size = sizeof(struct fregs_state);
 
 	fpu_user_xstate_size = fpu_kernel_xstate_size;
 	fpstate_reset(&current->thread.fpu);