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X-CSE-ConnectionGUID: w0q8+WuESiqNZLb6+6udug== X-CSE-MsgGUID: maUyfuvbTVemZAsGIrn7yg== X-IronPort-AV: E=McAfee;i="6800,10657,11777"; a="81437151" X-IronPort-AV: E=Sophos;i="6.23,217,1770624000"; d="scan'208";a="81437151" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 May 2026 09:29:09 -0700 X-CSE-ConnectionGUID: DTFzgd8ZQry7By57TWOsww== X-CSE-MsgGUID: QB/AysaAQ2iiA/ANFVmmbw== X-ExtLoop1: 1 Received: from lkp-server01.sh.intel.com (HELO 9ec114424ce8) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 05 May 2026 09:29:07 -0700 Received: from kbuild by 9ec114424ce8 with local (Exim 4.98.2) (envelope-from ) id 1wKIdt-000000000Hl-0eKz; Tue, 05 May 2026 16:29:05 +0000 Date: Wed, 06 May 2026 00:28:15 +0800 From: kernel test robot To: Bart Van Assche Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, x86@kernel.org, Peter Zijlstra Subject: [tip:locking/core 5/5] kernel/locking/rtmutex_api.c:93:1: warning: expecting rt_mutex 'lock' to be held at the end of function Message-ID: <202605060005.JYWpZXr2-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core head: d30a456aa7ce1bab05d9b364eeacad0c9cb10cc2 commit: d30a456aa7ce1bab05d9b364eeacad0c9cb10cc2 [5/5] locking/rtmutex: Annotate API and implementation config: um-defconfig (https://download.01.org/0day-ci/archive/20260506/202605060005.JYWpZXr2-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260506/202605060005.JYWpZXr2-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202605060005.JYWpZXr2-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/locking/rtmutex_api.c:93:1: warning: expecting rt_mutex 'lock' to be held at the end of function [-Wthread-safety-analysis] 93 | } | ^ kernel/locking/rtmutex_api.c:90:14: note: rt_mutex acquired here 90 | void __sched rt_mutex_lock(struct rt_mutex *lock) | ^ 1 warning generated. vim +/lock +93 kernel/locking/rtmutex_api.c 531ae4b06a737ed Thomas Gleixner 2021-08-15 84 531ae4b06a737ed Thomas Gleixner 2021-08-15 85 /** 531ae4b06a737ed Thomas Gleixner 2021-08-15 86 * rt_mutex_lock - lock a rt_mutex 531ae4b06a737ed Thomas Gleixner 2021-08-15 87 * 531ae4b06a737ed Thomas Gleixner 2021-08-15 88 * @lock: the rt_mutex to be locked 531ae4b06a737ed Thomas Gleixner 2021-08-15 89 */ 531ae4b06a737ed Thomas Gleixner 2021-08-15 90 void __sched rt_mutex_lock(struct rt_mutex *lock) 531ae4b06a737ed Thomas Gleixner 2021-08-15 91 { a3642021923b26d Sebastian Andrzej Siewior 2021-11-29 92 __rt_mutex_lock_common(lock, TASK_UNINTERRUPTIBLE, NULL, 0); 531ae4b06a737ed Thomas Gleixner 2021-08-15 @93 } 531ae4b06a737ed Thomas Gleixner 2021-08-15 94 EXPORT_SYMBOL_GPL(rt_mutex_lock); 531ae4b06a737ed Thomas Gleixner 2021-08-15 95 #endif 531ae4b06a737ed Thomas Gleixner 2021-08-15 96 :::::: The code at line 93 was first introduced by commit :::::: 531ae4b06a737ed5539cd75dc6f6b9a28f900bba locking/rtmutex: Split API from implementation :::::: TO: Thomas Gleixner :::::: CC: Ingo Molnar -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki