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

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Date:   Thu, 9 Feb 2017 16:25:46 +0800
From:   Mars Cheng <mars.cheng@...iatek.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>
CC:     CC Hwang <cc.hwang@...iatek.com>,
        Loda Chou <loda.chou@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>,
        Jades Shih <jades.shih@...iatek.com>,
        Yingjoe Chen <yingjoe.chen@...iatek.com>,
        My Chuang <my.chuang@...iatek.com>,
        <linux-kernel@...r.kernel.org>, <wsd_upstream@...iatek.com>,
        Mars Cheng <mars.cheng@...iatek.com>
Subject: [PATCH] perf/core: remove useless cast when comparing

since nr_cpu_ids and cpu are both int, remove the casting

Signed-off-by: Mars Cheng <mars.cheng@...iatek.com>
---
 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