Re: [PATCH 08/30] sched: Expose css_tg(), __setscheduler_prio() and SCHED_CHANGE_BLOCK()

kernel test robot
2023-01-28T17:25:06Z

Hi Tejun,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v6.2-rc5 next-20230127]
[cannot apply to tip/sched/core tj-cgroup/for-next]
[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/Tejun-Heo/sched-Encapsulate-task-attribute-change-sequence-into-a-helper-macro/20230128-123001
patch link: https://lore.kernel.org/r/20230128001639.3510083-9-tj%40kernel.org
patch subject: [PATCH 08/30] sched: Expose css_tg(), __setscheduler_prio() and SCHED_CHANGE_BLOCK()
config: arc-defconfig (https://download.01.org/0day-ci/archive/20230129/202301290130.A9xDBZbR-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/49fe6fbf20db85f7bd19f55cdcd7e957ae0f0983
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Tejun-Heo/sched-Encapsulate-task-attribute-change-sequence-into-a-helper-macro/20230128-123001
git checkout 49fe6fbf20db85f7bd19f55cdcd7e957ae0f0983
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> kernel/sched/core.c:6967:6: warning: no previous prototype for '__setscheduler_prio' [-Wmissing-prototypes]
6967 | void __setscheduler_prio(struct task_struct *p, int prio)
| ^~~~~~~~~~~~~~~~~~~

vim +/__setscheduler_prio +6967 kernel/sched/core.c

6966
> 6967 void __setscheduler_prio(struct task_struct *p, int prio)
6968 {
6969 if (dl_prio(prio))
6970 p->sched_class = &dl_sched_class;
6971 else if (rt_prio(prio))
6972 p->sched_class = &rt_sched_class;
6973 else
6974 p->sched_class = &fair_sched_class;
6975
6976 p->prio = prio;
6977 }
6978

--
0-DAY CI Kernel Test Service