[tip:perf/core] perf/hw_breakpoint: Remove superfluous bp->attr.disabled = 0

[tip-bot for Jiri Olsa]

Commit-ID:  cb45302d7c5e20f0c0598cdbd7753fa44daceb2a
Gitweb:     https://git.kernel.org/tip/cb45302d7c5e20f0c0598cdbd7753fa44daceb2a
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Mon, 27 Aug 2018 11:12:26 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 30 Aug 2018 14:49:23 -0300

perf/hw_breakpoint: Remove superfluous bp->attr.disabled = 0

Once the breakpoint was succesfully modified, the attr->disabled value
is in bp->attr.disabled. So there's no reason to set it again, removing
that.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Acked-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Acked-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Tested-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Milind Chabbi <chabbi.milind@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20180827091228.2878-4-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 kernel/events/hw_breakpoint.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index fb229d9c7f3c..3e560d7609fd 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -526,10 +526,9 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att
 	if (err)
 		return err;
 
-	if (!attr->disabled) {
+	if (!attr->disabled)
 		perf_event_enable(bp);
-		bp->attr.disabled = 0;
-	}
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint);