[PATCH] perf/core: declare the percpu variable properly

From: Mukesh Ojha
Date: Tue Nov 27 2018 - 04:13:49 EST

Sparse reports the current declaration of percpu variable with
below warning

warning: incorrect type in initializer (different address spaces)
expected void const [noderef] <asn:3>*__vpp_verify
got struct perf_cpu_context *<noident>

Fix it by declaring it properly.

Signed-off-by: Mukesh Ojha <mojha@xxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>

include/linux/perf_event.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 53c500f..1d5c551 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -262,8 +262,8 @@ struct pmu {
int capabilities;

- int * __percpu pmu_disable_count;
- struct perf_cpu_context * __percpu pmu_cpu_context;
+ int __percpu *pmu_disable_count;
+ struct perf_cpu_context __percpu *pmu_cpu_context;
atomic_t exclusive_cnt; /* < 0: cpu; > 0: tsk */
int task_ctx_nr;
int hrtimer_interval_ms;
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