linux-kernel - Re: [PATCH v2] kernel/time: move timer sysctls to its own file

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Date:   Sat, 29 Jan 2022 05:03:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     tangmeng <tangmeng@...ontech.com>, tglx@...utronix.de,
        mcgrof@...nel.org, keescook@...omium.org, yzaikin@...gle.com,
        john.stultz@...aro.org, sboyd@...nel.org
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, tangmeng <tangmeng@...ontech.com>
Subject: Re: [PATCH v2] kernel/time: move timer sysctls to its own file

Hi tangmeng,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/timers/core]
[also build test ERROR on linus/master kees/for-next/pstore v5.17-rc1 next-20220128]
[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/tangmeng/kernel-time-move-timer-sysctls-to-its-own-file/20220128-165225
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 35e13e9da9afbce13c1d36465504ece4e65f24fe
config: arm64-randconfig-r026-20220127 (https://download.01.org/0day-ci/archive/20220129/202201290325.Jyor2i8O-lkp@intel.com/config)
compiler: aarch64-linux-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/8bd44d33085f8ab50523016cbdb0c918dc4b4f3c
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review tangmeng/kernel-time-move-timer-sysctls-to-its-own-file/20220128-165225
        git checkout 8bd44d33085f8ab50523016cbdb0c918dc4b4f3c
        # 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=arm64 SHELL=/bin/bash kernel/time/

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

All errors (new ones prefixed by >>):

   kernel/time/timer.c: In function 'timer_sysctl_init':
>> kernel/time/timer.c:283:9: error: implicit declaration of function 'register_sysctl_init'; did you mean 'timer_sysctl_init'? [-Werror=implicit-function-declaration]
     283 |         register_sysctl_init("kerneli/timer", timer_sysctl);
         |         ^~~~~~~~~~~~~~~~~~~~
         |         timer_sysctl_init
   cc1: some warnings being treated as errors


vim +283 kernel/time/timer.c

   280	
   281	static int __init timer_sysctl_init(void)
   282	{
 > 283		register_sysctl_init("kerneli/timer", timer_sysctl);
   284		return 0;
   285	}
   286	#else
   287	#define timer_sysctl_init() do { } while (0)
   288	#endif
   289	static inline bool is_timers_nohz_active(void)
   290	{
   291		return static_branch_unlikely(&timers_nohz_active);
   292	}
   293	#else
   294	static inline bool is_timers_nohz_active(void) { return false; }
   295	#endif /* NO_HZ_COMMON */
   296	

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