linux-kernel - [PATCH linux-next] kernel:rtmutex: fix boolreturn.cocci warnings

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Date:   Mon, 23 Aug 2021 23:27:56 -0700
From:   CGEL <cgel.zte@...il.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        linux-kernel@...r.kernel.org,
        Jing Yangyang <jing.yangyang@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] kernel:rtmutex: fix boolreturn.cocci warnings

From: Jing Yangyang <jing.yangyang@....com.cn>

./kernel/locking/rtmutex.c:375:9-10:WARNING:return of 0/1 in
function '__waiter_less' with return type bool

Return statements in functions returning bool should use true/false
instead of 1/0.

Generated by: scripts/coccinelle/misc/boolreturn.cocci

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Jing Yangyang <jing.yangyang@....com.cn>
---
 kernel/locking/rtmutex.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 8aaa352..f904f25 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -372,24 +372,24 @@ static __always_inline bool __waiter_less(struct rb_node *a, const struct rb_nod
 	struct rt_mutex_waiter *bw = __node_2_waiter(b);
 
 	if (rt_mutex_waiter_less(aw, bw))
-		return 1;
+		return true;
 
 	if (!build_ww_mutex())
-		return 0;
+		return false;
 
 	if (rt_mutex_waiter_less(bw, aw))
-		return 0;
+		return false;
 
 	/* NOTE: relies on waiter->ww_ctx being set before insertion */
 	if (aw->ww_ctx) {
 		if (!bw->ww_ctx)
-			return 1;
+			return true;
 
 		return (signed long)(aw->ww_ctx->stamp -
 				     bw->ww_ctx->stamp) < 0;
 	}
 
-	return 0;
+	return false;
 }
 
 static __always_inline void
-- 
1.8.3.1