On Tue, 1 Sep 2020 00:25:58 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > Hi Masami, > > I love your patch! Yet something to improve: > > [auto build test ERROR on tip/perf/core] > [also build test ERROR on trace/for-next lwn/docs-next linus/master v5.9-rc3 next-20200828] > [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/Masami-Hiramatsu/tracing-boot-Add-new-options-for-tracing-specific-period/20200831-204738 > base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 2cb5383b30d47c446ec7d884cd80f93ffcc31817 > config: arc-defconfig (attached as .config) > compiler: arc-elf-gcc (GCC) 9.3.0 > 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 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > arc-elf-ld: init/main.o: in function `kernel_init': > >> main.c:(.ref.text+0xa6): undefined reference to `kprobe_free_init_mem' > >> arc-elf-ld: main.c:(.ref.text+0xa6): undefined reference to `kprobe_free_init_mem' OK, I missed to put the kprobe_free_init_mem() in the code depends on CONFIG_DEBUG_FS. I'll move this out. Thank you, -- Masami Hiramatsu <mhiramat@xxxxxxxxxx>