From: John Hubbard <jhubbard@nvidia.com>
To: Shuah Khan <shuah@kernel.org>
Cc: "Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Darren Hart" <dvhart@infradead.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
"André Almeida" <andrealmeid@igalia.com>,
"Nysal Jan K . A" <nysal@linux.ibm.com>,
"Mark Brown" <broonie@kernel.org>,
"Valentin Obst" <kernel@valentinobst.de>,
linux-kselftest@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
llvm@lists.linux.dev, "John Hubbard" <jhubbard@nvidia.com>
Subject: [PATCH 2/3] selftests/futex: don't pass a const char* to asprintf(3)
Date: Thu, 2 May 2024 21:18:42 -0700 [thread overview]
Message-ID: <20240503041843.99136-3-jhubbard@nvidia.com> (raw)
In-Reply-To: <20240503041843.99136-1-jhubbard@nvidia.com>
First of all, in order to build with clang at all, one must first apply
Valentin Obst's build fix for LLVM [1]. Once that is done, then 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")
Signed-off-by: John Hubbard <jhubbard@nvidia.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) {
--
2.45.0
next prev parent reply other threads:[~2024-05-03 4:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-03 4:18 [PATCH 0/3] selftests/futex: clang-inspired fixes John Hubbard
2024-05-03 4:18 ` [PATCH 1/3] selftests/futex: don't redefine .PHONY targets (all, clean) John Hubbard
2024-05-03 4:18 ` John Hubbard [this message]
2024-05-03 4:18 ` [PATCH 3/3] selftests/futex: pass _GNU_SOURCE without a value to the compiler John Hubbard
2024-05-08 21:05 ` John Hubbard
2024-05-28 22:24 ` Edward Liaw
2024-05-28 22:43 ` John Hubbard
2024-05-06 16:13 ` [PATCH 0/3] selftests/futex: clang-inspired fixes Davidlohr Bueso
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240503041843.99136-3-jhubbard@nvidia.com \
--to=jhubbard@nvidia.com \
--cc=andrealmeid@igalia.com \
--cc=broonie@kernel.org \
--cc=dave@stgolabs.net \
--cc=dvhart@infradead.org \
--cc=kernel@valentinobst.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=mingo@redhat.com \
--cc=nysal@linux.ibm.com \
--cc=peterz@infradead.org \
--cc=shuah@kernel.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox