Hi Shameer, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on pm/linux-next] [also build test WARNING on arm/for-next soc/for-next arm64/for-next/core linus/master v5.12-rc8] [cannot apply to iommu/next xlnx/master next-20210420] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Shameer-Kolothum/ACPI-IORT-Suppo... base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: x86_64-randconfig-a002-20210420 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project ca8eef7e3da8f750d7c7aa004fe426d1d34787ea) 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://github.com/0day-ci/linux/commit/c68d4ba37ecc2173a2dc418799e23a184... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shameer-Kolothum/ACPI-IORT-Support-for-IORT-RMR-node/20210420-173125 git checkout c68d4ba37ecc2173a2dc418799e23a184685d681 # 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 <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from drivers/iommu/arm/arm-smmu/qcom_iommu.c:13: int iommu_dma_get_rmrs(struct fwnode_handle *iommu, struct list_head *list); ^ include/linux/dma-iommu.h:93:1: error: expected identifier or '(' { ^ 1 warning and 1 error generated. vim +92 include/linux/dma-iommu.h 91 93 { 94 return 0; 95 } 96 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org