[PATCH v2 4/8] perf test coresight: Dismiss clang warning for memcpy thread

Leo Yan
2025-09-30T16:55:25Z

clang-18.1.3 on Ubuntu 24.04.2 reports warning:

memcpy_thread.c:30:1: warning: non-void function does not return a value in all control paths [-Wreturn-type]
30 | }
| ^

Dismiss the warning with returning NULL from the thread function.

Signed-off-by: Leo Yan <leo.yan@arm.com>
---
tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c b/tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c
index 5f886cd09e6b3a62b5690dade94f1f8cae3279d2..7e879217be30a86431989dbf1f36d2134ef259cc 100644
--- a/tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c
+++ b/tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c
@@ -27,6 +27,8 @@ static void *thrfn(void *arg)
}
for (i = 0; i < len; i++)
memcpy(dst, src, a->size * 1024);
+
+ return NULL;
}

static pthread_t new_thr(void *(*fn) (void *arg), void *arg)

--
2.34.1