[kbuild-all] arch/powerpc/platforms/powernv/opal-fadump.c:72:58: sparse: expected restricted __be64 src

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e commit: 51bba8edef90cf579dba16de912d3ef809fe1d77 powerpc/fadump: support copying multiple kernel boot memory regions date: 11 months ago config: powerpc64-randconfig-s032-20200808 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-118-ge1578773-dirty git checkout 51bba8edef90cf579dba16de912d3ef809fe1d77 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) arch/powerpc/platforms/powernv/opal-fadump.c:35:41: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] boot_mem_dest_addr @@ got restricted __be64 const [usertype] dest @@ arch/powerpc/platforms/powernv/opal-fadump.c:35:41: sparse: expected unsigned long long [usertype] boot_mem_dest_addr arch/powerpc/platforms/powernv/opal-fadump.c:35:41: sparse: got restricted __be64 const [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:72:58: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] src @@ got unsigned long long [assigned] [usertype] src_addr @@ arch/powerpc/platforms/powernv/opal-fadump.c:72:58: sparse: got unsigned long long [assigned] [usertype] src_addr arch/powerpc/platforms/powernv/opal-fadump.c:73:58: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] dest @@ got unsigned long long [assigned] [usertype] dest_addr @@ arch/powerpc/platforms/powernv/opal-fadump.c:73:58: sparse: expected restricted __be64 [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:73:58: sparse: got unsigned long long [assigned] [usertype] dest_addr arch/powerpc/platforms/powernv/opal-fadump.c:74:58: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] size @@ got int [assigned] cur_size @@ arch/powerpc/platforms/powernv/opal-fadump.c:74:58: sparse: expected restricted __be64 [usertype] size arch/powerpc/platforms/powernv/opal-fadump.c:74:58: sparse: got int [assigned] cur_size arch/powerpc/platforms/powernv/opal-fadump.c:86:53: sparse: sparse: restricted __be64 degrades to integer arch/powerpc/platforms/powernv/opal-fadump.c:138:56: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned long long [usertype] src @@ got restricted __be64 [usertype] src @@ arch/powerpc/platforms/powernv/opal-fadump.c:138:56: sparse: expected unsigned long long [usertype] src arch/powerpc/platforms/powernv/opal-fadump.c:138:56: sparse: got restricted __be64 [usertype] src arch/powerpc/platforms/powernv/opal-fadump.c:139:56: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected unsigned long long [usertype] dest @@ got restricted __be64 [usertype] dest @@ arch/powerpc/platforms/powernv/opal-fadump.c:139:56: sparse: expected unsigned long long [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:139:56: sparse: got restricted __be64 [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:140:56: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected unsigned long long [usertype] size @@ got restricted __be64 [usertype] size @@ arch/powerpc/platforms/powernv/opal-fadump.c:140:56: sparse: expected unsigned long long [usertype] size arch/powerpc/platforms/powernv/opal-fadump.c:140:56: sparse: got restricted __be64 [usertype] size vim +72 arch/powerpc/platforms/powernv/opal-fadump.c 50 51 static u64 opal_fadump_init_mem_struct(struct fw_dump *fadump_conf) 52 { 53 int max_copy_size, cur_size, size; 54 u64 src_addr, dest_addr; 55 56 opal_fdm = __va(fadump_conf->kernel_metadata); 57 opal_fadump_init_metadata(opal_fdm); 58 59 /* 60 * Firmware supports 32-bit field for size. Align it to PAGE_SIZE 61 * and request firmware to copy multiple kernel boot memory regions. 62 */ 63 max_copy_size = _ALIGN_DOWN(U32_MAX, PAGE_SIZE); 64 65 /* Boot memory regions */ 66 src_addr = 0; 67 dest_addr = fadump_conf->reserve_dump_area_start; 68 size = fadump_conf->boot_memory_size; 69 while (size) { 70 cur_size = size > max_copy_size ? max_copy_size : size; 71 73 opal_fdm->rgn[opal_fdm->region_cnt].dest = dest_addr; 74 opal_fdm->rgn[opal_fdm->region_cnt].size = cur_size; 75 76 opal_fdm->region_cnt++; 77 dest_addr += cur_size; 78 src_addr += cur_size; 79 size -= cur_size; 80 } 81 82 /* 83 * Kernel metadata is passed to f/w and retrieved in capture kerenl. 84 * So, use it to save fadump header address instead of calculating it. 85 */ 86 opal_fdm->fadumphdr_addr = (opal_fdm->rgn[0].dest + 87 fadump_conf->boot_memory_size); 88 89 opal_fadump_update_config(fadump_conf, opal_fdm); 90 91 return dest_addr; 92 } 93 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org