linux-kernel - [PATCH] sched/topology: One function call less in build_group_from_child_sched

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Message-ID: <ad2e7dfb-3323-b214-716e-a6cae41b8bcc@web.de>
Date:   Sat, 6 Jul 2019 16:05:17 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     kernel-janitors@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] sched/topology: One function call less in
 build_group_from_child_sched_domain()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 6 Jul 2019 16:00:13 +0200

Avoid an extra function call by using a ternary operator instead of
a conditional statement.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 kernel/sched/topology.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index f751ce0b783e..6190eb52c30a 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -886,11 +886,7 @@ build_group_from_child_sched_domain(struct sched_domain *sd, int cpu)
 		return NULL;

 	sg_span = sched_group_span(sg);
-	if (sd->child)
-		cpumask_copy(sg_span, sched_domain_span(sd->child));
-	else
-		cpumask_copy(sg_span, sched_domain_span(sd));
-
+	cpumask_copy(sg_span, sched_domain_span(sd->child ? sd->child : sd));
 	atomic_inc(&sg->ref);
 	return sg;
 }
--
2.22.0