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: hexagon-buildonly-randconfig-r005-20230302 (https://download.01.org/0day-ci/archive/20230302/202303021143.qA8IMjmN-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 # 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=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/crypto/hisilicon/sec/ 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/202303021143.qA8IMjmN-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/crypto/hisilicon/sec/sec_drv.c:11: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/crypto/hisilicon/sec/sec_drv.c:11: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/crypto/hisilicon/sec/sec_drv.c:11: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ In file included from drivers/crypto/hisilicon/sec/sec_drv.c:14: >> include/linux/iommu.h:1215:1: error: expected identifier or '(' { ^ drivers/crypto/hisilicon/sec/sec_drv.c:1209:39: warning: shift count >= width of type [-Wshift-count-overflow] ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ 7 warnings 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
