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X-CSE-ConnectionGUID: GYnbDvs6SuCggPtm2TO4oQ== X-CSE-MsgGUID: bzQyxejpRTaBYt2UoekPDQ== X-IronPort-AV: E=McAfee;i="6800,10657,11805"; a="81205845" X-IronPort-AV: E=Sophos;i="6.24,183,1774335600"; d="scan'208";a="81205845" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jun 2026 13:50:33 -0700 X-CSE-ConnectionGUID: zN1GnmJBSrumcxS/DtaPuQ== X-CSE-MsgGUID: O3uXrLVQQHSsiXXuDE8MjQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,183,1774335600"; d="scan'208";a="242970305" Received: from igk-lkp-server01.igk.intel.com (HELO 892db79562d4) ([10.211.93.152]) by orviesa006.jf.intel.com with ESMTP; 02 Jun 2026 13:50:31 -0700 Received: from kbuild by 892db79562d4 with local (Exim 4.98.2) (envelope-from ) id 1wUW4C-000000001rD-2OMJ; Tue, 02 Jun 2026 20:50:28 +0000 Date: Tue, 02 Jun 2026 22:49:39 +0200 From: kernel test robot To: "Peter Zijlstra (Intel)" Cc: oe-kbuild-all@lists.linux.dev Subject: [peterz-queue:sched/flat 61/61] kernel/sched/fair.c:9922:20: warning: 'cfs_rq' is used uninitialized Message-ID: <202606022233.nMLuVHVG-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/flat head: a5d37500c54a90dc76e3e3e1cd3b0194b06d5461 commit: a5d37500c54a90dc76e3e3e1cd3b0194b06d5461 [61/61] sched/eevdf: Move to a single runqueue config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20260602/202606022233.nMLuVHVG-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260602/202606022233.nMLuVHVG-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/202606022233.nMLuVHVG-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/sched/fair.c: In function 'pick_task_fair': >> kernel/sched/fair.c:9922:20: warning: 'cfs_rq' is used uninitialized [-Wuninitialized] 9922 | if (!cfs_rq->h_nr_queued) | ~~~~~~^~~~~~~~~~~~~ kernel/sched/fair.c:9917:24: note: 'cfs_rq' was declared here 9917 | struct cfs_rq *cfs_rq; | ^~~~~~ vim +/cfs_rq +9922 kernel/sched/fair.c 9912 9913 struct task_struct *pick_task_fair(struct rq *rq, struct rq_flags *rf) 9914 __must_hold(__rq_lockp(rq)) 9915 { 9916 struct sched_entity *se; 9917 struct cfs_rq *cfs_rq; 9918 struct task_struct *p; 9919 int new_tasks; 9920 9921 again: > 9922 if (!cfs_rq->h_nr_queued) 9923 goto idle; 9924 9925 /* Might not have done put_prev_entity() */ 9926 if (cfs_rq->curr && cfs_rq->curr->on_rq) 9927 update_curr(cfs_rq); 9928 9929 se = pick_next_entity(rq, true); 9930 if (!se) 9931 goto again; 9932 9933 p = task_of(se); 9934 return p; 9935 9936 idle: 9937 new_tasks = sched_balance_newidle(rq, rf); 9938 if (new_tasks < 0) 9939 return RETRY_TASK; 9940 if (new_tasks > 0) 9941 goto again; 9942 return NULL; 9943 } 9944 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki