linux-kernel - Re: [PATCH next 1/2] sched: Init new task's vruntime after select cpu

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Date:   Mon, 31 Oct 2022 22:23:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Zhang Qiao <zhangqiao22@...wei.com>, mingo@...hat.com,
        juri.lelli@...hat.com, vincent.guittot@...aro.org
Cc:     oe-kbuild-all@...ts.linux.dev, zhangqiao22@...wei.com,
        dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
        mgorman@...e.de, bristot@...hat.com, vschneid@...hat.com,
        brauner@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH next 1/2] sched: Init new task's vruntime after select cpu

Hi Zhang,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20221031]

url:    https://github.com/intel-lab-lkp/linux/commits/Zhang-Qiao/sched-sched_fork-optimizations/20221031-202427
patch link:    https://lore.kernel.org/r/20221031125113.72980-2-zhangqiao22%40huawei.com
patch subject: [PATCH next 1/2] sched: Init new task's vruntime after select cpu
config: i386-tinyconfig
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/dd85b689329a85b7c34067d160a67569c82327c6
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Zhang-Qiao/sched-sched_fork-optimizations/20221031-202427
        git checkout dd85b689329a85b7c34067d160a67569c82327c6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/sched/

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

All warnings (new ones prefixed by >>):

>> kernel/sched/core.c:4654:6: warning: no previous prototype for 'sched_task_fork' [-Wmissing-prototypes]
    4654 | void sched_task_fork(struct task_struct *p)
         |      ^~~~~~~~~~~~~~~


vim +/sched_task_fork +4654 kernel/sched/core.c

  4653	
> 4654	void sched_task_fork(struct task_struct *p)
  4655	{
  4656		if (p->sched_class->task_fork)
  4657			p->sched_class->task_fork(p);
  4658	}
  4659	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

View attachment "config" of type "text/plain" (29648 bytes)