Hi Shyam, kernel test robot noticed the following build errors:
[auto build test ERROR on soc/for-next] [also build test ERROR on linus/master v6.16 next-20250807] [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/Shyam-Saini/arm-smmu-move-MSI_IOVA-macro-definitions/20250807-055741 base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next patch link: https://lore.kernel.org/r/20250806215539.1240561-2-shyamsaini%40linux.microsoft.com patch subject: [PATCH v3 1/3] arm-smmu: move MSI_IOVA macro definitions config: um-randconfig-r071-20250807 (https://download.01.org/0day-ci/archive/20250807/202508072221.zovuarav-...@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 7b8dea265e72c3037b6b1e54d5ab51b7e14f328b) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250807/202508072221.zovuarav-...@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508072221.zovuarav-...@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/iommu/arm/arm-smmu/arm-smmu.c:24: In file included from include/linux/dma-mapping.h:8: In file included from include/linux/scatterlist.h:9: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ >> drivers/iommu/arm/arm-smmu/arm-smmu.c:1603:35: error: use of undeclared >> identifier 'MSI_IOVA_BASE' 1603 | region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH, | ^~~~~~~~~~~~~ drivers/iommu/arm/arm-smmu/arm-smmu.c:1603:50: error: use of undeclared identifier 'MSI_IOVA_LENGTH' 1603 | region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH, | ^~~~~~~~~~~~~~~ 1 warning and 2 errors generated. vim +/MSI_IOVA_BASE +1603 drivers/iommu/arm/arm-smmu/arm-smmu.c 021bb8420d44cf drivers/iommu/arm-smmu.c Robin Murphy 2016-09-14 1596 f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1597 static void arm_smmu_get_resv_regions(struct device *dev, f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1598 struct list_head *head) f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1599 { f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1600 struct iommu_resv_region *region; f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1601 int prot = IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO; f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1602 f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 @1603 region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH, 0251d0107cfb0b drivers/iommu/arm/arm-smmu/arm-smmu.c Lu Baolu 2022-10-19 1604 prot, IOMMU_RESV_SW_MSI, GFP_KERNEL); f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1605 if (!region) f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1606 return; f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1607 f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1608 list_add_tail(®ion->list, head); 273df9635385b2 drivers/iommu/arm-smmu.c Robin Murphy 2017-03-16 1609 273df9635385b2 drivers/iommu/arm-smmu.c Robin Murphy 2017-03-16 1610 iommu_dma_get_resv_regions(dev, head); f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1611 } f3ebee80b3131d drivers/iommu/arm-smmu.c Eric Auger 2017-01-19 1612 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
