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X-CSE-ConnectionGUID: W+j8bVvkT3CIjEZtRScSaw== X-CSE-MsgGUID: IlqptXb7SaWaAUbxNJ7Xcw== X-IronPort-AV: E=McAfee;i="6800,10657,11664"; a="86767383" X-IronPort-AV: E=Sophos;i="6.21,208,1763452800"; d="scan'208";a="86767383" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jan 2026 08:55:03 -0800 X-CSE-ConnectionGUID: VaIx3S5YSGiCFMspsMlUuA== X-CSE-MsgGUID: 7RtuXKnkRimNPFRN07UIOg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,208,1763452800"; d="scan'208";a="240454261" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa001.jf.intel.com with ESMTP; 07 Jan 2026 08:55:02 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vdWoF-0000000040n-34cA; Wed, 07 Jan 2026 16:54:59 +0000 Date: Thu, 08 Jan 2026 00:54:04 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: [tip:locking/core 20/40] include/linux/rwsem.h:262 class_rwsem_read_try_constructor() warn: passing zero to 'ERR_PTR' Message-ID: <202601080002.GfL3Vts3-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org CC: x86@kernel.org TO: Marco Elver CC: Peter Zijlstra tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core head: c10d860e0baae0853773dc90a94b26adc5687380 commit: e4fd3be884cf33a42c5bcde087b0722a5b8f25ca [20/40] locking/rwsem: Support Clang's context analysis :::::: branch date: 2 days ago :::::: commit date: 2 days ago config: openrisc-randconfig-r073-20260107 (https://download.01.org/0day-ci/archive/20260108/202601080002.GfL3Vts3-lkp@intel.com/config) compiler: or1k-linux-gcc (GCC) 15.1.0 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202601080002.GfL3Vts3-lkp@intel.com/ New smatch warnings: include/linux/rwsem.h:262 class_rwsem_read_try_constructor() warn: passing zero to 'ERR_PTR' include/linux/rwsem.h:273 class_rwsem_write_try_constructor() warn: passing zero to 'ERR_PTR' Old smatch warnings: lib/test_context-analysis.c:96 test_raw_spinlock_trylock_extra() warn: mixing irq and irqsave include/linux/spinlock.h:556 class_raw_spinlock_try_constructor() warn: passing zero to 'ERR_PTR' lib/test_context-analysis.c:120 test_spinlock_trylock_extra() warn: mixing irq and irqsave include/linux/spinlock.h:604 class_spinlock_try_constructor() warn: passing zero to 'ERR_PTR' include/linux/mutex.h:255 class_mutex_try_constructor() warn: passing zero to 'ERR_PTR' vim +/ERR_PTR +262 include/linux/rwsem.h e4fd3be884cf33 Marco Elver 2025-12-19 260 e4fd3be884cf33 Marco Elver 2025-12-19 261 DEFINE_LOCK_GUARD_1(rwsem_read, struct rw_semaphore, down_read(_T->lock), up_read(_T->lock)) e4fd3be884cf33 Marco Elver 2025-12-19 @262 DEFINE_LOCK_GUARD_1_COND(rwsem_read, _try, down_read_trylock(_T->lock)) e4fd3be884cf33 Marco Elver 2025-12-19 263 DEFINE_LOCK_GUARD_1_COND(rwsem_read, _intr, down_read_interruptible(_T->lock), _RET == 0) e4fd3be884cf33 Marco Elver 2025-12-19 264 e4fd3be884cf33 Marco Elver 2025-12-19 265 DECLARE_LOCK_GUARD_1_ATTRS(rwsem_read, __acquires_shared(_T), __releases_shared(*(struct rw_semaphore **)_T)) e4fd3be884cf33 Marco Elver 2025-12-19 266 #define class_rwsem_read_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(rwsem_read, _T) e4fd3be884cf33 Marco Elver 2025-12-19 267 DECLARE_LOCK_GUARD_1_ATTRS(rwsem_read_try, __acquires_shared(_T), __releases_shared(*(struct rw_semaphore **)_T)) e4fd3be884cf33 Marco Elver 2025-12-19 268 #define class_rwsem_read_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(rwsem_read_try, _T) e4fd3be884cf33 Marco Elver 2025-12-19 269 DECLARE_LOCK_GUARD_1_ATTRS(rwsem_read_intr, __acquires_shared(_T), __releases_shared(*(struct rw_semaphore **)_T)) e4fd3be884cf33 Marco Elver 2025-12-19 270 #define class_rwsem_read_intr_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(rwsem_read_intr, _T) e4fd3be884cf33 Marco Elver 2025-12-19 271 e4fd3be884cf33 Marco Elver 2025-12-19 272 DEFINE_LOCK_GUARD_1(rwsem_write, struct rw_semaphore, down_write(_T->lock), up_write(_T->lock)) e4fd3be884cf33 Marco Elver 2025-12-19 @273 DEFINE_LOCK_GUARD_1_COND(rwsem_write, _try, down_write_trylock(_T->lock)) e4fd3be884cf33 Marco Elver 2025-12-19 274 DEFINE_LOCK_GUARD_1_COND(rwsem_write, _kill, down_write_killable(_T->lock), _RET == 0) e4fd3be884cf33 Marco Elver 2025-12-19 275 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki