On 4/3/19 12:09 AM, Rong Chen wrote: > > On 4/3/19 2:26 PM, Randy Dunlap wrote: >> On 4/2/19 10:54 PM, kbuild test robot wrote: >>> Hi Randy, >>> >>> It's probably a bug fix that unveils the link errors. >>> >>> tree: git://git.cmpxchg.org/linux-mmotm.git master >>> head: 03590d39c08e0f2969871a5efcf27a366c1e8c60 >>> commit: cffa367bb8abe4c1424e93e345c7d63844d1c5db [19/222] sh: fix multiple function definition build errors >>> 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 cffa367bb8abe4c1424e93e345c7d63844d1c5db >>> # save the attached .config to linux build tree >>> GCC_VERSION=7.2.0 make.cross ARCH=sh >>> >>> 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 >>> >> Hi, >> I suspect that it's more of an invalid .config file. >> How do you generate the .config files? or is it a defconfig? > > the config file was generated by "make ARCH=sh allmodconfig" > > >> >> Yes, I have seen this build error, but I was able to get around it >> by modifying the .config file. That's why I suspect that it may be >> an invalid .config file. > > Can you share the fix steps? We'll take a look at it. Hi, For this build error: >> arch/sh/kernel/cpu/sh2/clock-sh7619.o:(.data+0x1c): undefined reference to `followparent_recalc' the problem is with CONFIG_COMMON_CLK. The COMMON_CLK framework does not provide this API. However, in arch/sh/boards/Kconfig, COMMON_CLK is always selected by SH_DEVICE_TREE. By disabling SH_DEVICE_TREE, the build succeeds. -- ~Randy
