Hi Jacob, I love your patch! Yet something to improve: [auto build test ERROR on vkoul-dmaengine/next] [also build test ERROR on v6.2] [cannot apply to joro-iommu/next linus/master next-20230302] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Jacob-Pan/iommu-vt-d-Implement-set-device-pasid-op-for-default-domain/20230302-085748 base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next patch link: https://lore.kernel.org/r/20230302005959.2695267-4-jacob.jun.pan%40linux.intel.com patch subject: [PATCH 3/4] iommu/sva: Support reservation of global PASIDs config: arm64-randconfig-r013-20230302 (https://download.01.org/0day-ci/archive/20230302/202303021016.avd8l1rJ-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/b27170369658e99a0aafd84985de0ce48c1b2539 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jacob-Pan/iommu-vt-d-Implement-set-device-pasid-op-for-default-domain/20230302-085748 git checkout b27170369658e99a0aafd84985de0ce48c1b2539 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/exynos/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303021016.avd8l1rJ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/exynos/exynos_drm_dma.c:8: >> include/linux/iommu.h:1215:1: error: expected identifier or '(' { ^ drivers/gpu/drm/exynos/exynos_drm_dma.c:54:35: warning: implicit conversion from 'unsigned long long' to 'unsigned int' changes value from 18446744073709551615 to 4294967295 [-Wconstant-conversion] dma_set_max_seg_size(subdrv_dev, DMA_BIT_MASK(32)); ~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:40: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^~~~~ 1 warning and 1 error generated. vim +1215 include/linux/iommu.h 1213 1214 static inline ioasid_t iommu_sva_reserve_pasid(ioasid_t min, ioasid_t max); > 1215 { 1216 return IOMMU_PASID_INVALID; 1217 } 1218 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
