In-Reply-To: <20200609130303.26974-3-joro(a)8bytes.org&gt; References: <20200609130303.26974-3-joro(a)8bytes.org&gt; TO: Joerg Roedel <joro(a)8bytes.org&gt; TO: Joerg Roedel <joro(a)8bytes.org&gt; CC: David Woodhouse <dwmw2(a)infradead.org&gt; CC: Lu Baolu <baolu.lu(a)linux.intel.com&gt; CC: Suravee Suthikulpanit <suravee.suthikulpanit(a)amd.com&gt; CC: Jerry Snitselaar <jsnitsel(a)redhat.com&gt; CC: Qian Cai <cai(a)lca.pw&gt; CC: iommu(a)lists.linux-foundation.org CC: linux-kernel(a)vger.kernel.org Hi Joerg, I love your patch! Perhaps something to improve: [auto build test WARNING on iommu/next] [cannot apply to v5.7] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Joerg-Roedel/iommu-Move-Intel-an... base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next config: x86_64-randconfig-a016-20200607 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project bc2b70982be8f5250cd0082a7190f8b417bd4dfe) 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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 >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org