tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: d281438782e3c28a3df71a64513a3312d43dcf01 commit: 4023540b983eda09c4397401ac6a5a037d17a9c0 [3508/3508] ubcore: implement support for UVS commands config: arm64-randconfig-r112-20251210 (https://download.01.org/0day-ci/archive/20251211/202512110241.IA0OcNWQ-lkp@i...) compiler: aarch64-linux-gcc (GCC) 13.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512110241.IA0OcNWQ-lkp@i...) 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 <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512110241.IA0OcNWQ-lkp@intel.com/ sparse warnings: (new ones prefixed by >>)

...

drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:98:24: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *args_addr @@ got void [noderef] __user * @@ drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:98:24: sparse: expected void const *args_addr drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:98:24: sparse: got void [noderef] __user * drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:131:46: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *args_addr @@ got void [noderef] __user * @@ drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:131:46: sparse: expected void const *args_addr drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:131:46: sparse: got void [noderef] __user * drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:196:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *args_addr @@ got void [noderef] __user * @@ drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:196:44: sparse: expected void *args_addr drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:196:44: sparse: got void [noderef] __user * drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:228:5: sparse: sparse: symbol 'ubcore_tlv_parse' was not declared. Should it be static? drivers/ub/urma/ubcore/ubcore_cmd_tlv.c:262:5: sparse: sparse: symbol 'ubcore_tlv_append' was not declared. Should it be static? drivers/ub/urma/ubcore/ubcore_cmd_tlv.c: note: in included file: drivers/ub/urma/ubcore/ubcore_cmd.h:140:41: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *args_addr @@ drivers/ub/urma/ubcore/ubcore_cmd.h:140:41: sparse: expected void const [noderef] __user *from drivers/ub/urma/ubcore/ubcore_cmd.h:140:41: sparse: got void const *args_addr drivers/ub/urma/ubcore/ubcore_cmd.h:140:41: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *args_addr @@ drivers/ub/urma/ubcore/ubcore_cmd.h:140:41: sparse: expected void const [noderef] __user *from drivers/ub/urma/ubcore/ubcore_cmd.h:140:41: sparse: got void const *args_addr drivers/ub/urma/ubcore/ubcore_cmd.h:152:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got void *args_addr @@ drivers/ub/urma/ubcore/ubcore_cmd.h:152:33: sparse: expected void [noderef] __user *to drivers/ub/urma/ubcore/ubcore_cmd.h:152:33: sparse: got void *args_addr

vim +98 drivers/ub/urma/ubcore/ubcore_cmd_tlv.c 72 73 static struct ubcore_tlv_handler 74 g_global_tlv_handler[] = { [0] = { 0 }, 75 [UBCORE_CMD_SET_TOPO] = { 76 ubcore_set_topo_fill_spec_in, 77 SET_TOPO_IN_NUM, 78 NULL, 79 0, 80 } }; 81 82 static struct ubcore_cmd_attr * 83 ubcore_create_tlv_attr(struct ubcore_cmd_hdr *hdr, uint32_t *attr_size) 84 { 85 struct ubcore_cmd_attr *attr; 86 int ret; 87 88 if (hdr->args_len % sizeof(struct ubcore_cmd_attr) != 0 || 89 hdr->args_len >= UBCORE_CMD_TLV_MAX_LEN) { 90 ubcore_log_err("Invalid args_len: %u.\n", hdr->args_len); 91 return NULL; 92 } 93 attr = kzalloc(hdr->args_len, GFP_KERNEL); 94 if (attr == NULL) 95 return NULL; 96 97 ret = ubcore_copy_from_user(

98 attr, (void __user *)(uintptr_t)hdr->args_addr, hdr->args_len); 99 if (ret != 0) { 100 kfree(attr); 101 return NULL; 102 } 103 *attr_size = hdr->args_len / sizeof(struct ubcore_cmd_attr); 104 return attr; 105 } 106 107 static int ubcore_cmd_tlv_parse_type(struct ubcore_cmd_spec *spec, 108 struct ubcore_cmd_attr *attr) 109 { 110 uintptr_t ptr_src, ptr_dst; 111 uint32_t i; 112 int ret; 113 uint32_t spec_el_num = spec->attr_data.bs.el_num; 114 uint32_t attr_el_num = attr->attr_data.bs.el_num; 115 116 /* length of ubcore spec and from uvs should be strictly checked */ 117 /* as length of uvs ioctl attr should be strictly equal to length of ubcore */ 118 if (spec->field_size != attr->field_size || 119 spec_el_num != attr_el_num) { 120 ubcore_log_err( 121 "Invalid attr, spec/attr, field_size: %u/%u, el_num: %u/%u, type: %u.\n", 122 spec->field_size, attr->field_size, spec_el_num, 123 attr_el_num, spec->type); 124 return -EINVAL; 125 } 126 127 for (i = 0; i < spec_el_num; i++) { 128 ptr_dst = (spec->data) + i * spec->attr_data.bs.el_size; 129 ptr_src = (attr->data) + i * attr->attr_data.bs.el_size; 130 ret = ubcore_copy_from_user((void *)ptr_dst, 131 (void __user *)ptr_src, 132 spec->field_size); 133 if (ret != 0) 134 return ret; 135 } 136 137 return ret; 138 } 139 140 static int ubcore_cmd_tlv_parse(struct ubcore_cmd_spec *spec, 141 uint32_t spec_size, 142 struct ubcore_cmd_attr *attr, 143 uint32_t attr_size) 144 { 145 uint32_t spec_idx, attr_idx; 146 bool match; 147 int ret; 148 149 /* spec type of this range is only in type */ 150 for (spec_idx = 0; spec_idx < spec_size; spec_idx++) { 151 match = false; 152 for (attr_idx = 0; attr_idx < attr_size; attr_idx++) { 153 if (spec[spec_idx].type == attr[attr_idx].type) { 154 ret = ubcore_cmd_tlv_parse_type( 155 &spec[spec_idx], &attr[attr_idx]); 156 if (ret != 0) 157 return ret; 158 match = true; 159 break; 160 } 161 } 162 if (!match) { 163 ubcore_log_err( 164 "Failed to match mandatory in type: %u.\n", 165 spec[spec_idx].type); 166 return -1; 167 } 168 } 169 170 return 0; 171 } 172 173 static int ubcore_cmd_tlv_append_type(struct ubcore_cmd_spec *spec, 174 struct ubcore_cmd_attr *attr) 175 { 176 uintptr_t ptr_src, ptr_dst; 177 uint32_t i; 178 int ret; 179 uint32_t spec_el_num = spec->attr_data.bs.el_num; 180 uint32_t attr_el_num = attr->attr_data.bs.el_num; 181 182 /* length of ubcore spec and from uvs should be strictly checked */ 183 /* as length of uvs ioctl attr should be strictly equal to length of ubcore */ 184 if (spec->field_size != attr->field_size || 185 spec_el_num != attr_el_num) { 186 ubcore_log_err( 187 "Invalid attr, spec/attr, field_size: %u/%u, array_size: %u/%u, type: %u.\n", 188 spec->field_size, attr->field_size, spec_el_num, 189 attr_el_num, spec->type); 190 return -EINVAL; 191 } 192 193 for (i = 0; i < spec_el_num; i++) { 194 ptr_src = (spec->data) + i * spec->attr_data.bs.el_size; 195 ptr_dst = (attr->data) + i * attr->attr_data.bs.el_size; 196 ret = ubcore_copy_to_user((void __user *)ptr_dst, 197 (void *)ptr_src, spec->field_size); 198 if (ret != 0) 199 return ret; 200 } 201 202 return ret; 203 } 204 205 static int ubcore_cmd_tlv_append(struct ubcore_cmd_spec *spec, 206 uint32_t spec_size, 207 struct ubcore_cmd_attr *attr, 208 uint32_t attr_size) 209 { 210 uint32_t spec_idx, attr_idx; 211 int ret; 212 213 for (spec_idx = 0; spec_idx < spec_size; spec_idx++) { 214 for (attr_idx = 0; attr_idx < attr_size; attr_idx++) { 215 if (spec[spec_idx].type == attr[attr_idx].type && 216 spec[spec_idx].field_size != 0) { 217 ret = ubcore_cmd_tlv_append_type( 218 &spec[spec_idx], &attr[attr_idx]); 219 if (ret != 0) 220 return ret; 221 break; 222 } 223 } 224 } 225 return 0; 226 } 227 228 int ubcore_tlv_parse(ubcore_fill_spec_func fill_spec, size_t spec_size, 229 struct ubcore_cmd_hdr *hdr, void *arg) 230 { 231 struct ubcore_cmd_spec *spec = NULL; 232 struct ubcore_cmd_attr *attr = NULL; 233 uint32_t attr_size; 234 int ret; 235 236 /* Command of hdr is valid, no need to check it */ 237 if (fill_spec == NULL) { 238 ubcore_log_err("Invalid command: %u.\n", hdr->command); 239 return -EINVAL; 240 } 241 242 spec = kcalloc(spec_size, sizeof(struct ubcore_cmd_spec), GFP_KERNEL); 243 if (spec == NULL) 244 return -ENOMEM; 245 246 fill_spec(arg, spec); 247 248 attr = ubcore_create_tlv_attr(hdr, &attr_size); 249 if (attr == NULL) { 250 ret = -ENOMEM; 251 goto free_spec; 252 } 253 254 ret = ubcore_cmd_tlv_parse(spec, spec_size, attr, attr_size); 255 256 kfree(attr); 257 free_spec: 258 kfree(spec); 259 return ret; 260 } 261 262 int ubcore_tlv_append(ubcore_fill_spec_func fill_spec, size_t spec_size, 263 struct ubcore_cmd_hdr *hdr, void *arg) 264 { 265 struct ubcore_cmd_spec *spec = NULL; 266 struct ubcore_cmd_attr *attr = NULL; 267 uint32_t attr_size; 268 int ret; 269 270 /* Command of hdr is valid, no need to check it */ 271 if (fill_spec == NULL) { 272 ubcore_log_err("Invalid command: %u.\n", hdr->command); 273 return -EINVAL; 274 } 275 276 spec = kcalloc(spec_size, sizeof(struct ubcore_cmd_spec), GFP_KERNEL); 277 if (spec == NULL) 278 return -ENOMEM; 279 280 fill_spec(arg, spec); 281 282 attr = ubcore_create_tlv_attr(hdr, &attr_size); 283 if (attr == NULL) { 284 ret = -ENOMEM; 285 goto free_spec; 286 } 287 288 ret = ubcore_cmd_tlv_append(spec, spec_size, attr, attr_size); 289 290 kfree(attr); 291 free_spec: 292 kfree(spec); 293 return ret; 294 } 295

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki