[kbuild-all] arch/powerpc/platforms/powernv/opal-fadump.c:33:41: sparse: sparse: incorrect type in assignment (different base types)

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e commit: a20a8fa42def548f46c7e0401a94f62b8e595883 powerpc/fadump: define OPAL register/un-register callback functions 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 a20a8fa42def548f46c7e0401a94f62b8e595883 # 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:58:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] dest @@ got unsigned long long [usertype] addr @@ arch/powerpc/platforms/powernv/opal-fadump.c:58:33: sparse: expected restricted __be64 [usertype] dest arch/powerpc/platforms/powernv/opal-fadump.c:58:33: sparse: got unsigned long long [usertype] addr arch/powerpc/platforms/powernv/opal-fadump.c:59:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be64 [usertype] size @@ got unsigned long boot_memory_size @@ arch/powerpc/platforms/powernv/opal-fadump.c:59:33: sparse: expected restricted __be64 [usertype] size arch/powerpc/platforms/powernv/opal-fadump.c:59:33: sparse: got unsigned long boot_memory_size arch/powerpc/platforms/powernv/opal-fadump.c:66:53: sparse: sparse: restricted __be64 degrades to integer vim +33 arch/powerpc/platforms/powernv/opal-fadump.c 25 26 static void opal_fadump_update_config(struct fw_dump *fadump_conf, 27 const struct opal_fadump_mem_struct *fdm) 28 { 29 /* 30 * The destination address of the first boot memory region is the 31 * destination address of boot memory regions. 32 */ 34 pr_debug("Destination address of boot memory regions: %#016llx\n", 35 fadump_conf->boot_mem_dest_addr); 36 37 fadump_conf->fadumphdr_addr = fdm->fadumphdr_addr; 38 } 39 40 /* Initialize kernel metadata */ 41 static void opal_fadump_init_metadata(struct opal_fadump_mem_struct *fdm) 42 { 43 fdm->version = OPAL_FADUMP_VERSION; 44 fdm->region_cnt = 0; 45 fdm->registered_regions = 0; 46 fdm->fadumphdr_addr = 0; 47 } 48 49 static u64 opal_fadump_init_mem_struct(struct fw_dump *fadump_conf) 50 { 51 u64 addr = fadump_conf->reserve_dump_area_start; 52 53 opal_fdm = __va(fadump_conf->kernel_metadata); 54 opal_fadump_init_metadata(opal_fdm); 55 56 opal_fdm->region_cnt = 1; 57 opal_fdm->rgn[0].src = 0; 60 addr += fadump_conf->boot_memory_size; 61 62 /* 63 * Kernel metadata is passed to f/w and retrieved in capture kerenl. 64 * So, use it to save fadump header address instead of calculating it. 65 */ 67 fadump_conf->boot_memory_size); 68 69 opal_fadump_update_config(fadump_conf, opal_fdm); 70 71 return addr; 72 } 73 74 static u64 opal_fadump_get_metadata_size(void) 75 { 76 return PAGE_ALIGN(sizeof(struct opal_fadump_mem_struct)); 77 } 78 79 static int opal_fadump_setup_metadata(struct fw_dump *fadump_conf) 80 { 81 int err = 0; 82 s64 ret; 83 84 /* 85 * Use the last page(s) in FADump memory reservation for 86 * kernel metadata. 87 */ 88 fadump_conf->kernel_metadata = (fadump_conf->reserve_dump_area_start + 89 fadump_conf->reserve_dump_area_size - 90 opal_fadump_get_metadata_size()); 91 pr_info("Kernel metadata addr: %llx\n", fadump_conf->kernel_metadata); 92 93 /* Initialize kernel metadata before registering the address with f/w */ 94 opal_fdm = __va(fadump_conf->kernel_metadata); 95 opal_fadump_init_metadata(opal_fdm); 96 97 /* 98 * Register metadata address with f/w. Can be retrieved in 99 * the capture kernel. 100 */ 101 ret = opal_mpipl_register_tag(OPAL_MPIPL_TAG_KERNEL, 102 fadump_conf->kernel_metadata); 103 if (ret != OPAL_SUCCESS) { 104 pr_err("Failed to set kernel metadata tag!\n"); 105 err = -EPERM; 106 } 107 108 return err; 109 } 110 111 static int opal_fadump_register(struct fw_dump *fadump_conf) 112 { 113 s64 rc = OPAL_PARAMETER; 114 int i, err = -EIO; 115 116 for (i = 0; i < opal_fdm->region_cnt; i++) { 117 rc = opal_mpipl_update(OPAL_MPIPL_ADD_RANGE, 121 if (rc != OPAL_SUCCESS) 122 break; 123 124 opal_fdm->registered_regions++; 125 } 126 127 switch (rc) { 128 case OPAL_SUCCESS: 129 pr_info("Registration is successful!\n"); 130 fadump_conf->dump_registered = 1; 131 err = 0; 132 break; 133 case OPAL_RESOURCE: 134 /* If MAX regions limit in f/w is hit, warn and proceed. */ 135 pr_warn("%d regions could not be registered for MPIPL as MAX limit is reached!\n", 136 (opal_fdm->region_cnt - opal_fdm->registered_regions)); 137 fadump_conf->dump_registered = 1; 138 err = 0; 139 break; 140 case OPAL_PARAMETER: 141 pr_err("Failed to register. Parameter Error(%lld).\n", rc); 142 break; 143 case OPAL_HARDWARE: 144 pr_err("Support not available.\n"); 145 fadump_conf->fadump_supported = 0; 146 fadump_conf->fadump_enabled = 0; 147 break; 148 default: 149 pr_err("Failed to register. Unknown Error(%lld).\n", rc); 150 break; 151 } 152 153 /* 154 * If some regions were registered before OPAL_MPIPL_ADD_RANGE 155 * OPAL call failed, unregister all regions. 156 */ 157 if ((err < 0) && (opal_fdm->registered_regions > 0)) 158 opal_fadump_unregister(fadump_conf); 159 160 return err; 161 } 162 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org