[kbuild-all] [linux-sof-driver:pr/2839 11/11] ERROR: modpost: "sof_client_get_debugfs_root" [sound/soc/sof/snd-sof-probes.ko] undefined!

tree: https://github.com/thesofproject/linux pr/2839 head: 15fe7d05b9aa6e18a92ef9fc0aec61b4fd3d9f21 commit: 15fe7d05b9aa6e18a92ef9fc0aec61b4fd3d9f21 [11/11] wip probe rework config: x86_64-sof-customedconfig-sof-defconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/thesofproject/linux/commit/15fe7d05b9aa6e18a92ef9fc0ae... git remote add linux-sof-driver https://github.com/thesofproject/linux git fetch --no-tags linux-sof-driver pr/2839 git checkout 15fe7d05b9aa6e18a92ef9fc0aec61b4fd3d9f21 # save the attached .config to linux build tree make W=1 W=1 ARCH=x86_64 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 <<): Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SND_SOC_SOF_DEBUG_PROBES Depends on SOUND && !UML && SND && SND_SOC && SND_SOC_SOF_TOPLEVEL && SND_SOC_SOF_DEVELOPER_SUPPORT && SND_SOC_SOF_DEBUG Selected by - SND_SOC_SOF_HDA_PROBES && SOUND && !UML && SND && SND_SOC && SND_SOC_SOF_TOPLEVEL && SND_SOC_SOF_INTEL_TOPLEVEL && SND_SOC_SOF_PCI && SND_SOC_SOF_HDA_COMMON WARNING: unmet direct dependencies detected for SND_SOC_SOF_DEBUG_PROBES Depends on SOUND && !UML && SND && SND_SOC && SND_SOC_SOF_TOPLEVEL && SND_SOC_SOF_DEVELOPER_SUPPORT && SND_SOC_SOF_DEBUG Selected by - SND_SOC_SOF_HDA_PROBES && SOUND && !UML && SND && SND_SOC && SND_SOC_SOF_TOPLEVEL && SND_SOC_SOF_INTEL_TOPLEVEL && SND_SOC_SOF_PCI && SND_SOC_SOF_HDA_COMMON --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org