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x86/fpu: Cleanup fpu__init_system_xstate_size_legacy()

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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
This commit is contained in:
Thomas Gleixner 2021-10-15 01:09:31 +02:00 • committed by Borislav Petkov
parent 578971f4e2
commit 617473acdf
1 changed files with 5 additions and 10 deletions
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15
arch/x86/kernel/fpu/init.c
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@ -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);