Hi Jianyong, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on linus/master] [also build test WARNING on v5.7-rc6 next-20200519] [cannot apply to tip/timers/core kvmarm/next kvm/linux-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Jianyong-Wu/Enable-ptp_kvm-for-a... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 051143e1602d90ea71887d92363edd539d411de5 config: x86_64-defconfig (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; smatch warnings: kernel/time/clocksource.c:931 __clocksource_register_scale() warn: inconsistent indenting vim +931 kernel/time/clocksource.c 913 914 /** 915 * __clocksource_register_scale - Used to install new clocksources 916 * @cs: clocksource to be registered 917 * @scale: Scale factor multiplied against freq to get clocksource hz 918 * @freq: clocksource frequency (cycles per second) divided by scale 919 * 920 * Returns -EBUSY if registration fails, zero otherwise. 921 * 922 * This *SHOULD NOT* be called directly! Please use the 923 * clocksource_register_hz() or clocksource_register_khz helper functions. 924 */ 925 int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq) 926 { 927 unsigned long flags; 928 929 clocksource_arch_init(cs); 930 932 cs->id = CSID_GENERIC; 933 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org