[tip:perf/core] perf: Fix prototype of find_pmu_context()

[tip-bot for Mark Rutland]

Commit-ID:  9e3170411ed171a126f4dca1672012a33efe59e5
Gitweb:     http://git.kernel.org/tip/9e3170411ed171a126f4dca1672012a33efe59e5
Author:     Mark Rutland <mark.rutland@xxxxxxx>
AuthorDate: Mon, 10 Feb 2014 17:44:18 +0000
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Thu, 27 Feb 2014 12:43:21 +0100

perf: Fix prototype of find_pmu_context()

For some reason find_pmu_context() is defined as returning void * rather
than a __percpu struct perf_cpu_context *. As all the requisite types are
defined in advance there's no reason to keep it that way.

This patch modifies the prototype of pmu_find_context to return a
__percpu struct perf_cpu_context *.

Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Reviewed-by: Dave Martin <Dave.Martin@xxxxxxx>
Acked-by: Will Deacon <will.deacon@xxxxxxx>
Link: http://lkml.kernel.org/r/1392054264-23570-2-git-send-email-mark.rutland@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 kernel/events/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index fa99006..4251598 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6313,7 +6313,7 @@ static int perf_event_idx_default(struct perf_event *event)
  * Ensures all contexts with the same task_ctx_nr have the same
  * pmu_cpu_context too.
  */
-static void *find_pmu_context(int ctxn)
+static struct perf_cpu_context __percpu *find_pmu_context(int ctxn)
 {
 	struct pmu *pmu;
 
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