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Message-ID: <20240529022938.129624-3-jhubbard@nvidia.com>
Date: Tue, 28 May 2024 19:29:37 -0700
From: John Hubbard <jhubbard@...dia.com>
To: Shuah Khan <shuah@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Darren Hart <dvhart@...radead.org>,
Davidlohr Bueso <dave@...olabs.net>,
Edward Liaw <edliaw@...gle.com>,
André Almeida <andrealmeid@...lia.com>,
"Nysal Jan K . A" <nysal@...ux.ibm.com>,
Mark Brown <broonie@...nel.org>,
Valentin Obst <kernel@...entinobst.de>,
linux-kselftest@...r.kernel.org,
LKML <linux-kernel@...r.kernel.org>,
llvm@...ts.linux.dev,
John Hubbard <jhubbard@...dia.com>
Subject: [PATCH v2 2/3] selftests/futex: don't pass a const char* to asprintf(3)
When building with clang, via:
make LLVM=1 -C tools/testing/selftests
..clang issues a warning, because test_name is passed into asprintf(3),
which then changes it.
Fix this by simply removing the const qualifier. This is a local
automatic variable in a very short function, so there is not much need
to use the compiler to enforce const-ness at this scope.
[1] https://lore.kernel.org/all/20240329-selftests-libmk-llvm-rfc-v1-1-2f9ed7d1c49f@valentinobst.de/
Fixes: f17d8a87ecb5 ("selftests: fuxex: Report a unique test name per run of futex_requeue_pi")
Reviewed-by: Davidlohr Bueso <dave@...olabs.net>
Signed-off-by: John Hubbard <jhubbard@...dia.com>
---
tools/testing/selftests/futex/functional/futex_requeue_pi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/futex/functional/futex_requeue_pi.c b/tools/testing/selftests/futex/functional/futex_requeue_pi.c
index 7f3ca5c78df1..215c6cb539b4 100644
--- a/tools/testing/selftests/futex/functional/futex_requeue_pi.c
+++ b/tools/testing/selftests/futex/functional/futex_requeue_pi.c
@@ -360,7 +360,7 @@ int unit_test(int broadcast, long lock, int third_party_owner, long timeout_ns)
int main(int argc, char *argv[])
{
- const char *test_name;
+ char *test_name;
int c, ret;
while ((c = getopt(argc, argv, "bchlot:v:")) != -1) {
--
2.45.1
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