linux-kernel - [PATCH] lockdep: remove unnecessary unlikely()

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Date:   Mon, 29 Apr 2019 20:26:31 +0800
From:   zhengbin <zhengbin13@...wei.com>
To:     <peterz@...radead.org>, <mingo@...hat.com>, <will.deacon@....com>,
        <linux-kernel@...r.kernel.org>
CC:     <houtao1@...wei.com>
Subject: [PATCH] lockdep: remove unnecessary unlikely()

DEBUG_LOCKS_WARN_ON() already contains an unlikely(), there is no need
for another one.

Signed-off-by: zhengbin <zhengbin13@...wei.com>
---
 kernel/locking/lockdep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index e221be7..1522034 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3157,7 +3157,7 @@ void lockdep_hardirqs_on(unsigned long ip)
 	/*
 	 * See the fine text that goes along with this variable definition.
 	 */
-	if (DEBUG_LOCKS_WARN_ON(unlikely(early_boot_irqs_disabled)))
+	if (DEBUG_LOCKS_WARN_ON(early_boot_irqs_disabled))
 		return;

 	/*
--
2.7.4