tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: e71e3a48a7e89fa71fb70bf4602367528864d2ff commit: 46c5338db7bd45b2cf99570560f00389d60fd6b4 [8194/11253] crypto: sl3516 - Add sl3516 crypto engine config: um-allmodconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 46c5338db7bd45b2cf99570560f00389d60fd6b4 # save the attached .config to linux build tree make W=1 ARCH=um 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 <<): >> ERROR: modpost: "devm_platform_ioremap_resource" [drivers/crypto/gemini/sl3516-ce.ko] undefined!