From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, "Chang S. Bae" <chang.seok.bae@intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Arjan van de Ven <arjan@linux.intel.com>,
kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>
Subject: [patch 2/8] x86/fpu: Cleanup fpu__init_system_xstate_size_legacy()
Date: Fri, 15 Oct 2021 01:09:31 +0200 (CEST) [thread overview]
Message-ID: <20211014230739.184014242@linutronix.de> (raw)
In-Reply-To: <20211014225711.615197738@linutronix.de>
Clean the function up before making changes.
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/fpu/init.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -199,17 +199,12 @@ static void __init fpu__init_system_xsta
* 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(¤t->thread.fpu);
next prev parent reply other threads:[~2021-10-14 23:09 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-14 23:09 [patch 0/8] x86/fpu: Consolidate the size and feature information (part 3) Thomas Gleixner
2021-10-14 23:09 ` [patch 1/8] x86/fpu: Provide struct fpu_config Thomas Gleixner
2021-10-22 19:56 ` [tip: x86/fpu] " tip-bot2 for Thomas Gleixner
2021-10-14 23:09 ` Thomas Gleixner [this message]
2021-10-22 19:56 ` [tip: x86/fpu] x86/fpu: Cleanup fpu__init_system_xstate_size_legacy() tip-bot2 for Thomas Gleixner
2021-10-14 23:09 ` [patch 3/8] x86/fpu/xstate: Cleanup size calculations Thomas Gleixner
2021-10-22 19:56 ` [tip: x86/fpu] " tip-bot2 for Thomas Gleixner
2021-10-14 23:09 ` [patch 4/8] x86/fpu: Move xstate size to fpu_*_cfg Thomas Gleixner
2021-10-22 19:56 ` [tip: x86/fpu] " tip-bot2 for Thomas Gleixner
2021-10-14 23:09 ` [patch 5/8] x86/fpu: Move xstate feature masks " Thomas Gleixner
2021-10-22 19:56 ` [tip: x86/fpu] " tip-bot2 for Thomas Gleixner
2021-10-14 23:09 ` [patch 6/8] x86/fpu: Mop up xfeatures_mask_uabi() Thomas Gleixner
2021-10-22 19:56 ` [tip: x86/fpu] " tip-bot2 for Thomas Gleixner
2021-10-14 23:09 ` [patch 7/8] x86/fpu: Rework restore_regs_from_fpstate() Thomas Gleixner
2021-10-22 19:56 ` [tip: x86/fpu] " tip-bot2 for Thomas Gleixner
2021-10-14 23:09 ` [patch 8/8] x86/fpu/xstate: Move remaining xfeature helpers to core Thomas Gleixner
2021-10-22 19:56 ` [tip: x86/fpu] " tip-bot2 for Thomas Gleixner
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