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From: Borislav Petkov <bp@alien8.de>
To: X86 ML <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/6] x86/fpu/regset: Use boot_cpu_has()
Date: Tue,  5 Apr 2016 08:29:50 +0200	[thread overview]
Message-ID: <1459837795-2588-2-git-send-email-bp@alien8.de> (raw)
In-Reply-To: <1459837795-2588-1-git-send-email-bp@alien8.de>

From: Borislav Petkov <bp@suse.de>

fpregs_{g,s}et() are not sizzling-hot paths to justify the need for
static_cpu_has(). Use the normal boot_cpu_has() helper.

Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/kernel/fpu/regset.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c
index bc5e76c1d7c5..81422dfb152b 100644
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -278,7 +278,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
 
 	fpu__activate_fpstate_read(fpu);
 
-	if (!static_cpu_has(X86_FEATURE_FPU))
+	if (!boot_cpu_has(X86_FEATURE_FPU))
 		return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
 
 	if (!boot_cpu_has(X86_FEATURE_FXSR))
@@ -309,7 +309,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
 	fpu__activate_fpstate_write(fpu);
 	fpstate_sanitize_xstate(fpu);
 
-	if (!static_cpu_has(X86_FEATURE_FPU))
+	if (!boot_cpu_has(X86_FEATURE_FPU))
 		return fpregs_soft_set(target, regset, pos, count, kbuf, ubuf);
 
 	if (!boot_cpu_has(X86_FEATURE_FXSR))
-- 
2.7.3

  reply	other threads:[~2016-04-05  6:31 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-05  6:29 [PATCH 0/6] x86: Misc cleanups Borislav Petkov
2016-04-05  6:29 ` Borislav Petkov [this message]
2016-04-05 13:51   ` [PATCH 1/6] x86/fpu/regset: Use boot_cpu_has() Brian Gerst
2016-04-05 15:11     ` Borislav Petkov
2016-04-13 11:41   ` [tip:x86/asm] x86/fpu/regset: Replace static_cpu_has() usage with boot_cpu_has() tip-bot for Borislav Petkov
2016-04-05  6:29 ` [PATCH 2/6] x86/cpu: Simplify extended APIC ID detection on AMD Borislav Petkov
2016-04-13 11:41   ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05  6:29 ` [PATCH 3/6] x86/tsc: Do not check X86_FEATURE_CONSTANT_TSC in notifier call Borislav Petkov
2016-04-05  8:00   ` Peter Zijlstra
2016-04-13 11:41   ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05  6:29 ` [PATCH 4/6] x86/tsc: Save an indentation level in recalibrate_cpu_khz() Borislav Petkov
2016-04-05  8:05   ` Peter Zijlstra
2016-04-13 11:42   ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05  6:29 ` [PATCH 5/6] x86/fpu: Remove check_fpu() indirection Borislav Petkov
2016-04-13 11:42   ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05  6:29 ` [PATCH 6/6] x86/fpu: Get rid of x87 math exception helpers Borislav Petkov
2016-04-13 11:42   ` [tip:x86/asm] " tip-bot for Borislav Petkov

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