tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: cf6c9d12750cf6f3f6aeffcd0bdb36b1ac993f44 commit: 8e0c7e486014f8e924f5dc8f7a8719adb48f9d92 [7805/10748] dmaengine: at_xdmac: use pm_ptr() config: arm-randconfig-r016-20211025 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project a461fa64bb37cffd73f683c74f6b0780379fc2ca) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # 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 8e0c7e486014f8e924f5dc8f7a8719adb48f9d92 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): static const struct dev_pm_ops atmel_xdmac_dev_pm_ops = { ^ 1 warning generated. vim +/atmel_xdmac_dev_pm_ops +2210 drivers/dma/at_xdmac.c e1f7c9eee70730 Ludovic Desroches 2014-10-22 2209 e1f7c9eee70730 Ludovic Desroches 2014-10-22 @2210 static const struct dev_pm_ops atmel_xdmac_dev_pm_ops = { e1f7c9eee70730 Ludovic Desroches 2014-10-22 2211 .prepare = atmel_xdmac_prepare, e1f7c9eee70730 Ludovic Desroches 2014-10-22 2212 SET_LATE_SYSTEM_SLEEP_PM_OPS(atmel_xdmac_suspend, atmel_xdmac_resume) e1f7c9eee70730 Ludovic Desroches 2014-10-22 2213 }; e1f7c9eee70730 Ludovic Desroches 2014-10-22 2214 :::::: The code at line 2210 was first introduced by commit :::::: e1f7c9eee70730d7e6ec77f7ecc76f936e262cf0 dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver :::::: TO: Ludovic Desroches <ludovic.desroches(a)atmel.com&gt; :::::: CC: Vinod Koul <vinod.koul(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org