[PATCH] sched/numa: fix build without CONFIG_NUMA_BALANCING

* [PATCH] sched/numa: fix build without CONFIG_NUMA_BALANCING
@ 2017-06-28 20:05 Arnd Bergmann
  2017-06-28 20:40 ` Rik van Riel
  0 siblings, 1 reply; 2+ messages in thread
From: Arnd Bergmann @ 2017-06-28 20:05 UTC (permalink / raw)
  To: Ingo Molnar, Peter Zijlstra
  Cc: Arnd Bergmann, Vincent Guittot, Morten Rasmussen,
	Dietmar Eggemann, Rik van Riel, linux-kernel

I ran into a build error:

kernel/sched/fair.c:2655:44: error: 'struct sched_domain' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]

Adding a forward declaration for the struct name is sufficient
to avoid it.

Fixes: 3fed382b46ba ("sched/numa: Implement NUMA node level wake_affine()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 kernel/sched/fair.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6f4f155adf5f..eea8f0b7d9c0 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2652,6 +2652,7 @@ static inline void account_numa_dequeue(struct rq *rq, struct task_struct *p)
 {
 }
 
+struct sched_domain;
 static inline bool numa_wake_affine(struct sched_domain *sd,
 				    struct task_struct *p, int this_cpu,
 				    int prev_cpu, int sync)
-- 
2.9.0

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