[kbuild-all] [luxis1999-iommufd:iommufd-v5.17-rc4 28/56] drivers/iommu/iommufd/selftest.c:183:25: error: initialization of 'struct iommu_group * (*)(struct device *)' from incompatible pointer type 'phys_addr_t (*)(struct iommu_domain *, dma_addr_t)' {aka 'unsigned int (*)(struct iommu_domain *, unsigned int)'}

tree: https://github.com/luxis1999/iommufd iommufd-v5.17-rc4 head: 94542ac92f6f23784d73c13b39dc95cc4012181c commit: 047031aaa50c5daed9c24fa0701f7016d4ff6934 [28/56] iommufd: Add a selftest config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20220216/202202160138.nI8GEZY7-lk...) compiler: mips-linux-gcc (GCC) 11.2.0 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/luxis1999/iommufd/commit/047031aaa50c5daed9c24fa0701f7... git remote add luxis1999-iommufd https://github.com/luxis1999/iommufd git fetch --no-tags luxis1999-iommufd iommufd-v5.17-rc4 git checkout 047031aaa50c5daed9c24fa0701f7016d4ff6934 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/iommu/iommufd/selftest.c: In function 'mock_domain_alloc': drivers/iommu/iommufd/selftest.c:69:26: error: assignment to 'const struct iommu_domain_ops *' from incompatible pointer type 'const struct iommu_ops *' [-Werror=incompatible-pointer-types] 69 | mock->domain.ops = &domain_mock_ops; | ^ drivers/iommu/iommufd/selftest.c: At top level: drivers/iommu/iommufd/selftest.c:180:10: error: 'const struct iommu_ops' has no member named 'domain_free' 180 | .domain_free = mock_domain_free, | ^~~~~~~~~~~ drivers/iommu/iommufd/selftest.c:180:24: error: initialization of 'struct iommu_device * (*)(struct device *)' from incompatible pointer type 'void (*)(struct iommu_domain *)' [-Werror=incompatible-pointer-types] 180 | .domain_free = mock_domain_free, | ^~~~~~~~~~~~~~~~ drivers/iommu/iommufd/selftest.c:180:24: note: (near initialization for 'domain_mock_ops.probe_device') drivers/iommu/iommufd/selftest.c:181:10: error: 'const struct iommu_ops' has no member named 'map_pages' 181 | .map_pages = mock_domain_map_pages, | ^~~~~~~~~ drivers/iommu/iommufd/selftest.c:181:22: error: initialization of 'void (*)(struct device *)' from incompatible pointer type 'int (*)(struct iommu_domain *, long unsigned int, phys_addr_t, size_t, size_t, int, gfp_t, size_t *)' {aka 'int (*)(struct iommu_domain *, long unsigned int, unsigned int, unsigned int, unsigned int, int, unsigned int, unsigned int *)'} [-Werror=incompatible-pointer-types] 181 | .map_pages = mock_domain_map_pages, | ^~~~~~~~~~~~~~~~~~~~~ drivers/iommu/iommufd/selftest.c:181:22: note: (near initialization for 'domain_mock_ops.release_device') drivers/iommu/iommufd/selftest.c:182:10: error: 'const struct iommu_ops' has no member named 'unmap_pages' 182 | .unmap_pages = mock_domain_unmap_pages, | ^~~~~~~~~~~ drivers/iommu/iommufd/selftest.c:182:24: error: initialization of 'void (*)(struct device *)' from incompatible pointer type 'size_t (*)(struct iommu_domain *, long unsigned int, size_t, size_t, struct iommu_iotlb_gather *)' {aka 'unsigned int (*)(struct iommu_domain *, long unsigned int, unsigned int, unsigned int, struct iommu_iotlb_gather *)'} [-Werror=incompatible-pointer-types] 182 | .unmap_pages = mock_domain_unmap_pages, | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/iommufd/selftest.c:182:24: note: (near initialization for 'domain_mock_ops.probe_finalize') drivers/iommu/iommufd/selftest.c:183:10: error: 'const struct iommu_ops' has no member named 'iova_to_phys' 183 | .iova_to_phys = mock_domain_iova_to_phys, | ^~~~~~~~~~~~ 183 | .iova_to_phys = mock_domain_iova_to_phys, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/iommu/iommufd/selftest.c:183:25: note: (near initialization for 'domain_mock_ops.device_group') drivers/iommu/iommufd/selftest.c: In function 'get_md_pagetable': drivers/iommu/iommufd/selftest.c:198:31: warning: comparison of distinct pointer types lacks a cast 198 | if (hwpt->domain->ops != &domain_mock_ops) { | ^~ cc1: some warnings being treated as errors vim +183 drivers/iommu/iommufd/selftest.c 176 177 static const struct iommu_ops domain_mock_ops = { 178 .pgsize_bitmap = MOCK_IO_PAGE_SIZE, 179 .domain_alloc = mock_domain_alloc, 180 .domain_free = mock_domain_free, 181 .map_pages = mock_domain_map_pages, 182 .unmap_pages = mock_domain_unmap_pages, 184 }; 185 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org