[PATCH 3/5] perf: Remove 'extern' on hw_perf_event_init() definition

[Namhyung Kim]

Using 'extern' keyword on function definition has no meaning and
sparse complains about it:

 kernel/perf_event.c:78:32: warning: function 'hw_perf_event_init' with external linkage has definition

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx>
---
 kernel/perf_event.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index bd5d750..fd26451 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -75,7 +75,7 @@ static DEFINE_SPINLOCK(perf_resource_lock);
 /*
  * Architecture provided APIs - weak aliases:
  */
-extern __weak const struct pmu *hw_perf_event_init(struct perf_event *event)
+__weak const struct pmu *hw_perf_event_init(struct perf_event *event)
 {
 	return NULL;
 }
-- 
1.7.2.2

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