linux-kernel - [PATCH] sched/fair: Fix warning on non-SMP build

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Date:   Sun, 25 Nov 2018 14:41:05 -0800
From:   Olof Johansson <olof@...om.net>
To:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Muchun Song <smuchun@...il.com>, linux-kernel@...r.kernel.org,
        Olof Johansson <olof@...om.net>
Subject: [PATCH] sched/fair: Fix warning on non-SMP build

Caused by making the variable static:

kernel/sched/fair.c:119:21: warning: 'capacity_margin' defined but not used [-Wunused-variable]

Seems easiest to just move it up under the existing ifdef CONFIG_SMP
that's a few lines above.

Fixes: ed8885a14433a ('sched/fair: Make some variables static')
Signed-off-by: Olof Johansson <olof@...om.net>
---
 kernel/sched/fair.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e30dea59d215d..d25211f45c671 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -94,6 +94,14 @@ int __weak arch_asym_cpu_priority(int cpu)
 {
 	return -cpu;
 }
+
+/*
+ * The margin used when comparing utilization with CPU capacity:
+ * util * margin < capacity * 1024
+ *
+ * (default: ~20%)
+ */
+static unsigned int capacity_margin			= 1280;
 #endif
 
 #ifdef CONFIG_CFS_BANDWIDTH
@@ -110,14 +118,6 @@ int __weak arch_asym_cpu_priority(int cpu)
 unsigned int sysctl_sched_cfs_bandwidth_slice		= 5000UL;
 #endif
 
-/*
- * The margin used when comparing utilization with CPU capacity:
- * util * margin < capacity * 1024
- *
- * (default: ~20%)
- */
-static unsigned int capacity_margin			= 1280;
-
 static inline void update_load_add(struct load_weight *lw, unsigned long inc)
 {
 	lw->weight += inc;
-- 
2.11.0