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Date:   Sun, 13 Feb 2022 20:12:15 +0800
From:   kernel test robot <lkp@intel.com>
To:     Zhen Ni <nizhen@uniontech.com>, mingo@redhat.com,
        juri.lelli@redhat.com, vincent.guittot@linaro.org,
        mcgrof@kernel.org, keescook@chromium.org
Cc:     kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
        linux-fsdevel@vger.kernel.org, Zhen Ni <nizhen@uniontech.com>
Subject: Re: [PATCH] sched: move deadline_period sysctls to deadline.c
Message-ID: <202202132047.Oh4JMFtB-lkp@intel.com>
References: <20220211070014.30764-1-nizhen@uniontech.com>
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In-Reply-To: <20220211070014.30764-1-nizhen@uniontech.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
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Hi Zhen,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/sched/core]
[also build test ERROR on linus/master kees/for-next/pstore v5.17-rc3 next-20220211]
[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]

url:    https://github.com/0day-ci/linux/commits/Zhen-Ni/sched-move-deadline_period-sysctls-to-deadline-c/20220211-150312
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git c8eaf6ac76f40f6c59fc7d056e2e08c4a57ea9c7
config: arm-randconfig-c002-20220213 (https://download.01.org/0day-ci/archive/20220213/202202132047.Oh4JMFtB-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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/0day-ci/linux/commit/c785b6fd90f2f1a7dc49c7fcbd30ad54ecff0e75
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Zhen-Ni/sched-move-deadline_period-sysctls-to-deadline-c/20220211-150312
        git checkout c785b6fd90f2f1a7dc49c7fcbd30ad54ecff0e75
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> kernel/sched/deadline.c:49:20: error: 'sched_dl_sysctl_init' defined but not used [-Werror=unused-function]
      49 | static void __init sched_dl_sysctl_init(void)
         |                    ^~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/sched_dl_sysctl_init +49 kernel/sched/deadline.c

    48	
  > 49	static void __init sched_dl_sysctl_init(void)
    50	{
    51		register_sysctl_init("kernel", sched_dl_sysctls);
    52	}
    53	#else
    54	#define sched_dl_sysctl_init() do { } while (0)
    55	#endif
    56	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org