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Groups > linux.kernel > #1377815

[tip:x86/asm] x86/fpu/regset: Replace static_cpu_has() usage with boot_cpu_has()

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Commit-ID:  78df526c74a4db696e1e058b9869471937d0773b
Gitweb:     http://git.kernel.org/tip/78df526c74a4db696e1e058b9869471937d0773b
Author:     Borislav Petkov <bp@suse.de>
AuthorDate: Tue, 5 Apr 2016 08:29:50 +0200
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 13 Apr 2016 11:37:42 +0200

x86/fpu/regset: Replace static_cpu_has() usage with boot_cpu_has()

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>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1459837795-2588-2-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 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 bc5e76c..81422df 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))

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[PATCH 0/6] x86: Misc cleanups Borislav Petkov <bp@alien8.de> - 2016-04-05 08:40 +0200
  [PATCH 4/6] x86/tsc: Save an indentation level in recalibrate_cpu_khz() Borislav Petkov <bp@alien8.de> - 2016-04-05 08:40 +0200
    Re: [PATCH 4/6] x86/tsc: Save an indentation level in  recalibrate_cpu_khz() Peter Zijlstra <peterz@infradead.org> - 2016-04-05 10:10 +0200
    [tip:x86/asm] x86/tsc: Save an indentation level in  recalibrate_cpu_khz() tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-04-13 13:50 +0200
  [PATCH 3/6] x86/tsc: Do not check X86_FEATURE_CONSTANT_TSC in notifier call Borislav Petkov <bp@alien8.de> - 2016-04-05 08:40 +0200
    Re: [PATCH 3/6] x86/tsc: Do not check X86_FEATURE_CONSTANT_TSC in  notifier call Peter Zijlstra <peterz@infradead.org> - 2016-04-05 10:10 +0200
    [tip:x86/asm] x86/tsc: Do not check X86_FEATURE_CONSTANT_TSC in  notifier call tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-04-13 13:50 +0200
  [PATCH 1/6] x86/fpu/regset: Use boot_cpu_has() Borislav Petkov <bp@alien8.de> - 2016-04-05 08:40 +0200
    Re: [PATCH 1/6] x86/fpu/regset: Use boot_cpu_has() Brian Gerst <brgerst@gmail.com> - 2016-04-05 16:00 +0200
      Re: [PATCH 1/6] x86/fpu/regset: Use boot_cpu_has() Borislav Petkov <bp@alien8.de> - 2016-04-05 17:20 +0200
    [tip:x86/asm] x86/fpu/regset: Replace static_cpu_has() usage with  boot_cpu_has() tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-04-13 13:50 +0200
  [PATCH 5/6] x86/fpu: Remove check_fpu() indirection Borislav Petkov <bp@alien8.de> - 2016-04-05 08:40 +0200
    [tip:x86/asm] x86/fpu: Remove check_fpu() indirection tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-04-13 13:50 +0200

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