[PATCH] perf/core: remove useless cast when comparing

[Mars Cheng]

since nr_cpu_ids and cpu are both int, remove the casting

Signed-off-by: Mars Cheng <mars.cheng@xxxxxxxxxxxx>
---
 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 ab15509..3482342 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9085,7 +9085,7 @@ static void account_event(struct perf_event *event)
 	struct hw_perf_event *hwc;
 	long err = -EINVAL;
 
-	if ((unsigned)cpu >= nr_cpu_ids) {
+	if (cpu >= nr_cpu_ids) {
 		if (!task || cpu != -1)
 			return ERR_PTR(-EINVAL);
 	}
-- 
1.7.9.5