linux-kernel - [PATCH] Fix inc_rt_tasks() to not declare variable 'rq' if it's not needed

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Message-ID: <20080711123454.10475.33099.stgit@warthog.procyon.org.uk>
Date:	Fri, 11 Jul 2008 13:34:54 +0100
From:	David Howells <dhowells@...hat.com>
To:	mingo@...e.hu, ghaskins@...ell.com, akpm@...ux-foundation.org
Cc:	dhowells@...hat.com, tglx@...utronix.de,
	linux-kernel@...r.kernel.org
Subject: [PATCH] Fix inc_rt_tasks() to not declare variable 'rq' if it's not
	needed

Fix inc_rt_tasks() to not declare variable 'rq' if it's not needed.  It is
declared if CONFIG_SMP or CONFIG_RT_GROUP_SCHED, but only used if CONFIG_SMP.

This is a consequence of patch 1f11eb6a8bc92536d9e93ead48fa3ffbd1478571 plus
patch 1100ac91b6af02d8639d518fad5b434b1bf44ed6.

Signed-off-by: David Howells <dhowells@...hat.com>
---

 kernel/sched_rt.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)


diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index acba8eb..ec19ce5 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -505,7 +505,9 @@ void inc_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
 	rt_rq->rt_nr_running++;
 #if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
 	if (rt_se_prio(rt_se) < rt_rq->highest_prio) {
+#ifdef CONFIG_SMP
 		struct rq *rq = rq_of_rt_rq(rt_rq);
+#endif
 
 		rt_rq->highest_prio = rt_se_prio(rt_se);
 #ifdef CONFIG_SMP

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