linux-kernel - [tip:x86/urgent] x86/cpu/amd: Remove unnecessary parentheses

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Date:   Tue, 2 Oct 2018 23:33:52 -0700
From:   tip-bot for Nathan Chancellor <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     natechancellor@...il.com, bp@...en8.de,
        torvalds@...ux-foundation.org, peterz@...radead.org,
        mingo@...nel.org, hpa@...or.com, linux-kernel@...r.kernel.org,
        tglx@...utronix.de
Subject: [tip:x86/urgent] x86/cpu/amd: Remove unnecessary parentheses

Commit-ID:  88296bd42b4e9d24e138a68b337c235b5cac89a7
Gitweb:     https://git.kernel.org/tip/88296bd42b4e9d24e138a68b337c235b5cac89a7
Author:     Nathan Chancellor <natechancellor@...il.com>
AuthorDate: Tue, 2 Oct 2018 15:45:11 -0700
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Wed, 3 Oct 2018 08:27:47 +0200

x86/cpu/amd: Remove unnecessary parentheses

Clang warns when multiple pairs of parentheses are used for a single
conditional statement.

arch/x86/kernel/cpu/amd.c:925:14: warning: equality comparison with
extraneous parentheses [-Wparentheses-equality]
        if ((c->x86 == 6)) {
             ~~~~~~~^~~~
arch/x86/kernel/cpu/amd.c:925:14: note: remove extraneous parentheses
around the comparison to silence this warning
        if ((c->x86 == 6)) {
            ~       ^   ~
arch/x86/kernel/cpu/amd.c:925:14: note: use '=' to turn this equality
comparison into an assignment
        if ((c->x86 == 6)) {
                    ^~
                    =
1 warning generated.

Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
Cc: Borislav Petkov <bp@...en8.de>
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/20181002224511.14929-1-natechancellor@gmail.com
Link: https://github.com/ClangBuiltLinux/linux/issues/187
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/kernel/cpu/amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 22ab408177b2..eeea634bee0a 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -922,7 +922,7 @@ static void init_amd(struct cpuinfo_x86 *c)
 static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)
 {
 	/* AMD errata T13 (order #21922) */
-	if ((c->x86 == 6)) {
+	if (c->x86 == 6) {
 		/* Duron Rev A0 */
 		if (c->x86_model == 3 && c->x86_stepping == 0)
 			size = 64;