On 4/20/19 12:40 AM, kbuild test robot wrote: > Hi Randy, > > It's probably a bug fix that unveils the link errors. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 371dd432ab39f7bc55d6ec77d63b430285627e04 > commit: acaf892ecbf5be7710ae05a61fd43c668f68ad95 sh: fix multiple function definition build errors > date: 2 weeks ago > config: sh-allmodconfig (attached as .config) > compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout acaf892ecbf5be7710ae05a61fd43c668f68ad95 > # save the attached .config to linux build tree > GCC_VERSION=7.2.0 make.cross ARCH=sh Hi, Once again, the question is the validity of the SH2 .config file in this case (that was attached). I don't believe that it is valid because CONFIG_SH_DEVICE_TREE=y, which selects COMMON_CLK, and there is no followparent_recalc() in the COMMON_CLK API. Also, while CONFIG_HAVE_CLK=y, drivers/sh/Makefile prevents that from building clk/core.c, which could provide followparent_recalc(): ifneq ($(CONFIG_COMMON_CLK),y) obj-$(CONFIG_HAVE_CLK) += clk/ endif Hm, maybe that's where the problem is. I'll look into that more. It would be Good if someone from the SuperH area could/would comment. Thanks. > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot <lkp@xxxxxxxxx> > > > All errors (new ones prefixed by >>): > >>> arch/sh/kernel/cpu/sh2/clock-sh7619.o:(.data+0x1c): undefined reference to `followparent_recalc' > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation > -- ~Randy
