linux-kernel - [tip:sched/urgent] sched/fair: Remove unused but set variable 'rq'

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Message-ID: <tip-f5d6d2da0d9098a4aa0ebcc187aa0fc167045d6b@git.kernel.org>
Date:   Thu, 27 Oct 2016 00:39:21 -0700
From:   tip-bot for Tobias Klauser <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
        peterz@...radead.org, hpa@...or.com, tglx@...utronix.de,
        tklauser@...tanz.ch, mingo@...nel.org
Subject: [tip:sched/urgent] sched/fair: Remove unused but set variable 'rq'

Commit-ID:  f5d6d2da0d9098a4aa0ebcc187aa0fc167045d6b
Gitweb:     http://git.kernel.org/tip/f5d6d2da0d9098a4aa0ebcc187aa0fc167045d6b
Author:     Tobias Klauser <tklauser@...tanz.ch>
AuthorDate: Wed, 26 Oct 2016 13:37:04 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 27 Oct 2016 08:33:52 +0200

sched/fair: Remove unused but set variable 'rq'

Since commit:

  8663e24d56dc ("sched/fair: Reorder cgroup creation code")

... the variable 'rq' in alloc_fair_sched_group() is set but no longer used.
Remove it to fix the following GCC warning when building with 'W=1':

  kernel/sched/fair.c:8842:13: warning: variable ‘rq’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Tobias Klauser <tklauser@...tanz.ch>
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/20161026113704.8981-1-tklauser@distanz.ch
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/sched/fair.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d941c97..c242944 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -8839,7 +8839,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
 {
 	struct sched_entity *se;
 	struct cfs_rq *cfs_rq;
-	struct rq *rq;
 	int i;
 
 	tg->cfs_rq = kzalloc(sizeof(cfs_rq) * nr_cpu_ids, GFP_KERNEL);
@@ -8854,8 +8853,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
 	init_cfs_bandwidth(tg_cfs_bandwidth(tg));
 
 	for_each_possible_cpu(i) {
-		rq = cpu_rq(i);
-
 		cfs_rq = kzalloc_node(sizeof(struct cfs_rq),
 				      GFP_KERNEL, cpu_to_node(i));
 		if (!cfs_rq)