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charset=us-ascii Content-Disposition: inline BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20250513100730.12664-38-byungchul@sk.com> References: <20250513100730.12664-38-byungchul@sk.com> TO: Byungchul Park TO: linux-kernel@vger.kernel.org CC: kernel_team@skhynix.com CC: torvalds@linux-foundation.org CC: damien.lemoal@opensource.wdc.com CC: linux-ide@vger.kernel.org CC: adilger.kernel@dilger.ca CC: linux-ext4@vger.kernel.org CC: mingo@redhat.com CC: peterz@infradead.org CC: will@kernel.org CC: tglx@linutronix.de CC: rostedt@goodmis.org CC: joel@joelfernandes.org CC: sashal@kernel.org CC: daniel.vetter@ffwll.ch CC: duyuyang@gmail.com CC: johannes.berg@intel.com CC: tj@kernel.org CC: tytso@mit.edu CC: willy@infradead.org CC: david@fromorbit.com CC: amir73il@gmail.com CC: gregkh@linuxfoundation.org CC: kernel-team@lge.com CC: linux-mm@kvack.org CC: akpm@linux-foundation.org CC: mhocko@kernel.org CC: minchan@kernel.org CC: hannes@cmpxchg.org CC: vdavydov.dev@gmail.com Hi Byungchul, kernel test robot noticed the following build warnings: [auto build test WARNING on 82f2b0b97b36ee3fcddf0f0780a9a0825d52fec3] url: https://github.com/intel-lab-lkp/linux/commits/Byungchul-Park/llist-move-llist_-head-node-definition-to-types-h/20250513-181346 base: 82f2b0b97b36ee3fcddf0f0780a9a0825d52fec3 patch link: https://lore.kernel.org/r/20250513100730.12664-38-byungchul%40sk.com patch subject: [PATCH v15 37/43] dept: assign unique dept_key to each distinct wait_for_completion() caller :::::: branch date: 24 hours ago :::::: commit date: 24 hours ago config: loongarch-randconfig-r071-20250514 (https://download.01.org/0day-ci/archive/20250514/202505141759.avvm2GOf-lkp@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 14.2.0 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/202505141759.avvm2GOf-lkp@intel.com/ smatch warnings: kernel/sched/completion.c:167 __wait_for_completion_timeout() error: 'wait_for_common()' returns negative and '__fake_return_0x7fd58a360280' is unsigned vim +167 kernel/sched/completion.c b8a216269ec0ce Peter Zijlstra 2013-10-04 151 b8a216269ec0ce Peter Zijlstra 2013-10-04 152 /** 203be867bd3b2b Byungchul Park 2025-05-13 153 * __wait_for_completion_timeout: - waits for completion of a task (w/timeout) b8a216269ec0ce Peter Zijlstra 2013-10-04 154 * @x: holds the state of this particular completion b8a216269ec0ce Peter Zijlstra 2013-10-04 155 * @timeout: timeout value in jiffies b8a216269ec0ce Peter Zijlstra 2013-10-04 156 * b8a216269ec0ce Peter Zijlstra 2013-10-04 157 * This waits for either a completion of a specific task to be signaled or for a b8a216269ec0ce Peter Zijlstra 2013-10-04 158 * specified timeout to expire. The timeout is in jiffies. It is not b8a216269ec0ce Peter Zijlstra 2013-10-04 159 * interruptible. b8a216269ec0ce Peter Zijlstra 2013-10-04 160 * b8a216269ec0ce Peter Zijlstra 2013-10-04 161 * Return: 0 if timed out, and positive (at least 1, or number of jiffies left b8a216269ec0ce Peter Zijlstra 2013-10-04 162 * till timeout) if completed. b8a216269ec0ce Peter Zijlstra 2013-10-04 163 */ b8a216269ec0ce Peter Zijlstra 2013-10-04 164 unsigned long __sched 203be867bd3b2b Byungchul Park 2025-05-13 165 __wait_for_completion_timeout(struct completion *x, unsigned long timeout) b8a216269ec0ce Peter Zijlstra 2013-10-04 166 { b8a216269ec0ce Peter Zijlstra 2013-10-04 @167 return wait_for_common(x, timeout, TASK_UNINTERRUPTIBLE); b8a216269ec0ce Peter Zijlstra 2013-10-04 168 } 203be867bd3b2b Byungchul Park 2025-05-13 169 EXPORT_SYMBOL(__wait_for_completion_timeout); b8a216269ec0ce Peter Zijlstra 2013-10-04 170 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki