linux-kernel - Re: [PATCH 2/4] sched/core: introduce core to struct cfs

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Date:   Thu, 16 Nov 2023 04:08:37 +0800
From:   kernel test robot <lkp@...el.com>
To:     Cruz Zhao <CruzZhao@...ux.alibaba.com>, mingo@...hat.com,
        juri.lelli@...hat.com, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
        mgorman@...e.de, bristot@...hat.com, vschneid@...hat.com,
        joel@...lfernandes.org
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] sched/core: introduce core to struct cfs_rq

Hi Cruz,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.7-rc1 next-20231115]
[cannot apply to tip/sched/core]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Cruz-Zhao/sched-core-introduce-core_id-to-struct-rq/20231115-193559
base:   linus/master
patch link:    https://lore.kernel.org/r/20231115113341.13261-3-CruzZhao%40linux.alibaba.com
patch subject: [PATCH 2/4] sched/core: introduce core to struct cfs_rq
config: x86_64-buildonly-randconfig-003-20231116 (https://download.01.org/0day-ci/archive/20231116/202311160433.4Jcpw1My-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311160433.4Jcpw1My-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311160433.4Jcpw1My-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/sched/fair.c:12423:6: warning: no previous prototype for 'sched_core_init_cfs_rq' [-Wmissing-prototypes]
   12423 | void sched_core_init_cfs_rq(struct task_group *tg, struct cfs_rq *cfs_rq)
         |      ^~~~~~~~~~~~~~~~~~~~~~


vim +/sched_core_init_cfs_rq +12423 kernel/sched/fair.c

 12422	
 12423	void sched_core_init_cfs_rq(struct task_group *tg, struct cfs_rq *cfs_rq)
 12424	{
 12425	#ifdef CONFIG_FAIR_GROUP_SCHED
 12426		struct rq *rq = rq_of(cfs_rq);
 12427		int core_id = rq->core_id;
 12428	
 12429		cfs_rq->core = tg->cfs_rq[core_id];
 12430	#endif
 12431	}
 12432	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki