Re: [PATCH 2/4] sched/core: introduce core to struct cfs_rq

From: kernel test robot
Date: Wed Nov 15 2023 - 15:20:33 EST


Hi Cruz,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR 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-004-20231116 (https://download.01.org/0day-ci/archive/20231116/202311160408.5eq3Ye68-lkp@xxxxxxxxx/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/20231116/202311160408.5eq3Ye68-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311160408.5eq3Ye68-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

kernel/sched/fair.c: In function 'alloc_fair_sched_group':
>> kernel/sched/fair.c:12728:17: error: implicit declaration of function 'sched_core_init_cfs_rq'; did you mean 'sched_core_idle_cpu'? [-Werror=implicit-function-declaration]
12728 | sched_core_init_cfs_rq(tg, cfs_rq);
| ^~~~~~~~~~~~~~~~~~~~~~
| sched_core_idle_cpu
cc1: some warnings being treated as errors


vim +12728 kernel/sched/fair.c

12697
12698 int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
12699 {
12700 struct sched_entity *se;
12701 struct cfs_rq *cfs_rq;
12702 int i;
12703
12704 tg->cfs_rq = kcalloc(nr_cpu_ids, sizeof(cfs_rq), GFP_KERNEL);
12705 if (!tg->cfs_rq)
12706 goto err;
12707 tg->se = kcalloc(nr_cpu_ids, sizeof(se), GFP_KERNEL);
12708 if (!tg->se)
12709 goto err;
12710
12711 tg->shares = NICE_0_LOAD;
12712
12713 init_cfs_bandwidth(tg_cfs_bandwidth(tg), tg_cfs_bandwidth(parent));
12714
12715 for_each_possible_cpu(i) {
12716 cfs_rq = kzalloc_node(sizeof(struct cfs_rq),
12717 GFP_KERNEL, cpu_to_node(i));
12718 if (!cfs_rq)
12719 goto err;
12720
12721 se = kzalloc_node(sizeof(struct sched_entity_stats),
12722 GFP_KERNEL, cpu_to_node(i));
12723 if (!se)
12724 goto err_free_rq;
12725
12726 init_cfs_rq(cfs_rq);
12727 init_tg_cfs_entry(tg, cfs_rq, se, i, parent->se[i]);
12728 sched_core_init_cfs_rq(tg, cfs_rq);
12729 init_entity_runnable_average(se);
12730 }
12731
12732 return 1;
12733
12734 err_free_rq:
12735 kfree(cfs_rq);
12736 err:
12737 return 0;
12738 }
12739

--
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https://github.com/intel/lkp-tests/wiki