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A" , Mark Brown , Valentin Obst , linux-kselftest@vger.kernel.org, LKML , llvm@lists.linux.dev, John Hubbard Subject: [PATCH 2/3] selftests/futex: don't pass a const char* to asprintf(3) Date: Thu, 2 May 2024 21:18:42 -0700 Message-ID: <20240503041843.99136-3-jhubbard@nvidia.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240503041843.99136-1-jhubbard@nvidia.com> References: <20240503041843.99136-1-jhubbard@nvidia.com> X-NVConfidentiality: public X-ClientProxiedBy: BYAPR06CA0041.namprd06.prod.outlook.com (2603:10b6:a03:14b::18) To BY5PR12MB4130.namprd12.prod.outlook.com (2603:10b6:a03:20b::16) Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BY5PR12MB4130:EE_|PH8PR12MB7445:EE_ X-MS-Office365-Filtering-Correlation-Id: 94cf81e7-3f88-4dd4-1bcf-08dc6b282116 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|376005|1800799015|366007|7416005; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 94cf81e7-3f88-4dd4-1bcf-08dc6b282116 X-MS-Exchange-CrossTenant-AuthSource: BY5PR12MB4130.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 May 2024 04:18:47.8692 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: g54V3dTxM+AGdFKj2ILD2yTJe5M/Zx/AiC8x7OmikI/lccNt0HnN8Q/lXravhs9maoQbRXfk4seUeqLNFjHiDw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7445 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 --- 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) {