linux-kernel - [PATCH] perf/x86: remove unused variable in nhmex_rbox_alter

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Message-ID: <CAPgLHd8NZkYSkZm22FpZxiEh6HcA0q-V=29vdnheiDhgrJZ+yw@mail.gmail.com>
Date:	Mon, 22 Oct 2012 16:51:38 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	a.p.zijlstra@...llo.nl, paulus@...ba.org, mingo@...hat.com,
	acme@...stprotocols.net, tglx@...utronix.de, hpa@...or.com
Cc:	yongjun_wei@...ndmicro.com.cn, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] perf/x86: remove unused variable in nhmex_rbox_alter_er()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

The variable port is initialized but never used
otherwise, so remove the unused variable.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 99d96a4..e7d4061 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -1547,7 +1547,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event)
 {
 	struct hw_perf_event *hwc = &event->hw;
 	struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
-	int port;
 
 	/* adjust the main event selector and extra register index */
 	if (reg1->idx % 2) {
@@ -1559,7 +1558,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event)
 	}
 
 	/* adjust extra register config */
-	port = reg1->idx / 6 + box->pmu->pmu_idx * 4;
 	switch (reg1->idx % 6) {
 	case 2:
 		/* shift the 8~15 bits to the 0~7 bits */

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