tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.7 head: 390c6a3c9da56f899f8f21f283ab84dd5f05e378 commit: dead36a88435abfde8c64da87d4c50afa7e7ba3a [23/32] ASoC: SOF: imx: fix undefined reference issue config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-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 git checkout dead36a88435abfde8c64da87d4c50afa7e7ba3a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 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 >>, old ones prefixed by <<): powerpc64-linux-ld: sound/soc/sof/imx/imx8.o: in function `.imx8_run': imx8.c:(.text.imx8_run+0x40): undefined reference to `.imx_sc_misc_set_control' powerpc64-linux-ld: imx8.c:(.text.imx8_run+0xac): undefined reference to `.imx_sc_pm_cpu_start' powerpc64-linux-ld: sound/soc/sof/imx/imx8.o: in function `.imx8x_run': powerpc64-linux-ld: imx8.c:(.text.imx8x_run+0x108): undefined reference to `.imx_sc_misc_set_control' powerpc64-linux-ld: imx8.c:(.text.imx8x_run+0x168): undefined reference to `.imx_sc_misc_set_control' powerpc64-linux-ld: sound/soc/sof/imx/imx8.o: in function `.imx8_probe': imx8.c:(.text.imx8_probe+0x2d8): undefined reference to `.imx_scu_get_handle' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org