tree: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git queue head: cfaad0f79d37bceb15a9a6d1c3b6c8c5ff5364b5 commit: edf377c8db4aaf31e2c15260d3ce69b9572673f8 [12/14] scsi: ufs: core: Enable power management for wlun config: x86_64-randconfig-a011-20210510 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 492173d42b32cb91d5d0d72d5ed84fcab80d059a) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?id=edf377c8db4aaf31e2c15260d3ce69b9572673f8 git remote add mkp-scsi https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git git fetch --no-tags mkp-scsi queue git checkout edf377c8db4aaf31e2c15260d3ce69b9572673f8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): drivers/scsi/ufs/ufshcd.c:9667: warning: cannot understand function prototype: 'struct scsi_driver ufs_dev_wlun_template = ' >> drivers/scsi/ufs/ufshcd.c:9710: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Describes the ufs rpmb wlun. vim +9710 drivers/scsi/ufs/ufshcd.c 9708 9709 /** > 9710 * Describes the ufs rpmb wlun. 9711 * Used only to send uac. 9712 */ 9713 static struct scsi_driver ufs_rpmb_wlun_template = { 9714 .gendrv = { 9715 .name = "ufs_rpmb_wlun", 9716 .owner = THIS_MODULE, 9717 .probe = ufshcd_rpmb_probe, 9718 .pm = &ufs_rpmb_pm_ops, 9719 }, 9720 }; 9721 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org