linux-kernel - [PATCH] sched: core: Simplify cpuset_cpumask_can

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Date:   Fri, 19 May 2023 04:34:16 +0800
From:   Li zeming <zeming@...china.com>
To:     mingo@...hat.com, peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vschneid@...hat.com
Cc:     linux-kernel@...r.kernel.org, Li zeming <zeming@...china.com>
Subject: [PATCH] sched: core: Simplify cpuset_cpumask_can_shrink()

Remove useless intermediate variable "ret" and its initialization.
Directly return dl_cpuset_cpumask_can_shrink() result.

Signed-off-by: Li zeming <zeming@...china.com>
---
 kernel/sched/core.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a66960da3f5c..f3f2ece26291 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9273,14 +9273,10 @@ void __init init_idle(struct task_struct *idle, int cpu)
 int cpuset_cpumask_can_shrink(const struct cpumask *cur,
 			      const struct cpumask *trial)
 {
-	int ret = 1;
-
 	if (cpumask_empty(cur))
-		return ret;
-
-	ret = dl_cpuset_cpumask_can_shrink(cur, trial);
+		return 1;
 
-	return ret;
+	return dl_cpuset_cpumask_can_shrink(cur, trial);
 }
 
 int task_can_attach(struct task_struct *p,
-- 
2.18.2