perf: xgene: Remove set but not used variable 'config'

YueHaibing · wildea01 · commit cf2d65ec1d21 · 2019-01-31T10:55:05.000Z
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/perf/xgene_pmu.c: In function 'xgene_perf_stop':
drivers/perf/xgene_pmu.c:1055:6: warning:
 variable 'config' set but not used [-Wunused-but-set-variable]

It never used since introduction.

Signed-off-by: Yue Haibing &lt;yuehaibing@huawei.com&gt;
Signed-off-by: Will Deacon &lt;will.deacon@arm.com&gt;
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
@@ -1057,7 +1057,6 @@ static void xgene_perf_start(struct perf_event *event, int flags)
 static void xgene_perf_stop(struct perf_event *event, int flags)
 {
 	struct hw_perf_event *hw = &event->hw;
-	u64 config;
 
 	if (hw->state & PERF_HES_UPTODATE)
 		return;
@@ -1069,7 +1068,6 @@ static void xgene_perf_stop(struct perf_event *event, int flags)
 	if (hw->state & PERF_HES_UPTODATE)
 		return;
 
-	config = hw->config;
 	xgene_perf_read(event);
 	hw->state |= PERF_HES_UPTODATE;
 }

Original file line number	Diff line number	Diff line change
`@@ -1057,7 +1057,6 @@ static void xgene_perf_start(struct perf_event *event, int flags)`
`1057`	`1057`	`static void xgene_perf_stop(struct perf_event *event, int flags)`
`1058`	`1058`	`{`
`1059`	`1059`	`struct hw_perf_event *hw = &event->hw;`
`1060`		`- u64 config;`
`1061`	`1060`
`1062`	`1061`	`if (hw->state & PERF_HES_UPTODATE)`
`1063`	`1062`	`return;`
`@@ -1069,7 +1068,6 @@ static void xgene_perf_stop(struct perf_event *event, int flags)`
`1069`	`1068`	`if (hw->state & PERF_HES_UPTODATE)`
`1070`	`1069`	`return;`
`1071`	`1070`
`1072`		`- config = hw->config;`
`1073`	`1071`	`xgene_perf_read(event);`
`1074`	`1072`	`hw->state \|= PERF_HES_UPTODATE;`
`1075`	`1073`	`}`