linux-kernel - [tip:x86/asm] x86/vdso: Use static_cpu

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Message-ID: <tip-8c725306993198f845038dc9e45a1267099867a6@git.kernel.org>
Date:	Sat, 30 Jan 2016 05:20:31 -0800
From:	tip-bot for Borislav Petkov <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, luto@...capital.net,
	peterz@...radead.org, bp@...e.de, brgerst@...il.com,
	dvlasenk@...hat.com, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, mingo@...nel.org, bp@...en8.de,
	hpa@...or.com
Subject: [tip:x86/asm] x86/vdso: Use static_cpu_has()

Commit-ID:  8c725306993198f845038dc9e45a1267099867a6
Gitweb:     http://git.kernel.org/tip/8c725306993198f845038dc9e45a1267099867a6
Author:     Borislav Petkov <bp@...e.de>
AuthorDate: Tue, 26 Jan 2016 22:12:09 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Sat, 30 Jan 2016 11:22:23 +0100

x86/vdso: Use static_cpu_has()

... and simplify and speed up a tad.

Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: Andy Lutomirski <luto@...capital.net>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/1453842730-28463-10-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/entry/vdso/vma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 429d54d..10f7045 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -285,7 +285,7 @@ static void vgetcpu_cpu_init(void *arg)
 #ifdef CONFIG_NUMA
 	node = cpu_to_node(cpu);
 #endif
-	if (cpu_has(&cpu_data(cpu), X86_FEATURE_RDTSCP))
+	if (static_cpu_has(X86_FEATURE_RDTSCP))
 		write_rdtscp_aux((node << 12) | cpu);
 
 	/*