tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1a4431a5db2bf800c647ee0ed87f2727b8d6c29c commit: a07a4fe5ff460e99293c0d682421920d54e31d7f iio:adc:ingenic: drop of_match_ptr protection and include mod_devicetable.h date: 8 months ago config: mips-randconfig-p001-20210316 (attached as .config) compiler: mips-linux-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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout a07a4fe5ff460e99293c0d682421920d54e31d7f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4770_adc_init_clk_div': >> ingenic-adc.c:(.text+0x8c): undefined reference to `clk_get_parent' mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4725b_adc_init_clk_div': ingenic-adc.c:(.text+0x164): undefined reference to `clk_get_parent'

On Mon, Apr 26, 2021 at 8:43 AM Randy Dunlap <rdunlap(a)infradead.org&gt; wrote: > > [add linux-clk + maintainers] > > On 3/16/21 8:54 AM, kernel test robot wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 1a4431a5db2bf800c647ee0ed87f2727b8d6c29c >> commit: a07a4fe5ff460e99293c0d682421920d54e31d7f iio:adc:ingenic: drop of_match_ptr protection and include mod_devicetable.h >> date: 8 months ago >> config: mips-randconfig-p001-20210316 (attached as .config) >> compiler: mips-linux-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 >> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... >> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> git fetch --no-tags linus master >> git checkout a07a4fe5ff460e99293c0d682421920d54e31d7f >> # save the attached .config to linux build tree >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot <lkp(a)intel.com&gt; >> >> All errors (new ones prefixed by >>): >> >> mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4770_adc_init_clk_div': >>>> ingenic-adc.c:(.text+0x8c): undefined reference to `clk_get_parent' >> mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4725b_adc_init_clk_div': >> ingenic-adc.c:(.text+0x164): undefined reference to `clk_get_parent' > > Hi, > > My guess (analysis) suggests that this problem is due to > a difference in when clk_get_parent() is available between > <linux/clk.h> where it depends on CONFIG_HAVE_CLK and > drivers/clk/clk.c, which is built iff CONFIG_COMMON_CLK. > > Any comments/suggestions? I haven't looked into it, but IIRC MIPS has its own clock API implementation (or I mixed it with another arch?) and that's the root of many issues like this around the kernel.