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[tip:perf/core] perf arm pmu: Add missing linux/string.h header

Commit-ID:  af1db7f6b7323ab9f7beffe6028f421f4c398e7f
Gitweb:     https://git.kernel.org/tip/af1db7f6b7323ab9f7beffe6028f421f4c398e7f
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 5 Feb 2019 13:51:16 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 6 Feb 2019 10:00:38 -0300

perf arm pmu: Add missing linux/string.h header

It uses strstarts(), that is defined in linux/string.h but that was
being including by sheer luck, indirectly, fix it.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Dongjiu Geng <gengdongjiu@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Kim Phillips <kim.phillips@xxxxxxx>
Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Suzuki Poulouse <suzuki.poulose@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Link: https://lkml.kernel.org/n/tip-vub5lp82wb7vy5wssfad0xu8@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
 tools/perf/arch/arm/util/pmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/arch/arm/util/pmu.c b/tools/perf/arch/arm/util/pmu.c
index e047571e6080..64a677b518d0 100644
--- a/tools/perf/arch/arm/util/pmu.c
+++ b/tools/perf/arch/arm/util/pmu.c
@@ -7,6 +7,7 @@
 #include <string.h>
 #include <linux/coresight-pmu.h>
 #include <linux/perf_event.h>
+#include <linux/string.h>
 #include "cs-etm.h"
 #include "arm-spe.h"