Hi Dan, [auto build test ERROR on powerpc/next] [also build test ERROR on v4.11-rc7 next-20170419] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Dan-Williams/axon_ram-add-dax_operations-support/20170420-091615 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-defconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=powerpc All errors (new ones prefixed by >>): arch/powerpc/sysdev/axonram.c: In function 'axon_ram_dax_direct_access': >> arch/powerpc/sysdev/axonram.c:176:31: error: implicit declaration of function 'dax_get_private' [-Werror=implicit-function-declaration] struct axon_ram_bank *bank = dax_get_private(dax_dev); ^~~~~~~~~~~~~~~ >> arch/powerpc/sysdev/axonram.c:176:31: error: initialization makes pointer from integer without a cast [-Werror=int-conversion] arch/powerpc/sysdev/axonram.c: At top level: >> arch/powerpc/sysdev/axonram.c:181:21: error: variable 'axon_ram_dax_ops' has initializer but incomplete type static const struct dax_operations axon_ram_dax_ops = { ^~~~~~~~~~~~~~ >> arch/powerpc/sysdev/axonram.c:182:2: error: unknown field 'direct_access' specified in initializer .direct_access = axon_ram_dax_direct_access, ^ arch/powerpc/sysdev/axonram.c:182:19: error: excess elements in struct initializer [-Werror] .direct_access = axon_ram_dax_direct_access, ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/sysdev/axonram.c:182:19: note: (near initialization for 'axon_ram_dax_ops') arch/powerpc/sysdev/axonram.c: In function 'axon_ram_probe': >> arch/powerpc/sysdev/axonram.c:255:18: error: implicit declaration of function 'alloc_dax' [-Werror=implicit-function-declaration] bank->dax_dev = alloc_dax(bank, bank->disk->disk_name, ^~~~~~~~~ >> arch/powerpc/sysdev/axonram.c:255:16: error: assignment makes pointer from integer without a cast [-Werror=int-conversion] bank->dax_dev = alloc_dax(bank, bank->disk->disk_name, ^ >> arch/powerpc/sysdev/axonram.c:313:3: error: implicit declaration of function 'kill_dax' [-Werror=implicit-function-declaration] kill_dax(bank->dax_dev); ^~~~~~~~ >> arch/powerpc/sysdev/axonram.c:314:3: error: implicit declaration of function 'put_dax' [-Werror=implicit-function-declaration] put_dax(bank->dax_dev); ^~~~~~~ arch/powerpc/sysdev/axonram.c: At top level: >> arch/powerpc/sysdev/axonram.c:181:36: error: storage size of 'axon_ram_dax_ops' isn't known static const struct dax_operations axon_ram_dax_ops = { ^~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/dax_get_private +176 arch/powerpc/sysdev/axonram.c 170 }; 171 172 static long 173 axon_ram_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, 174 void **kaddr, pfn_t *pfn) 175 { > 176 struct axon_ram_bank *bank = dax_get_private(dax_dev); 177 178 return __axon_ram_direct_access(bank, pgoff, nr_pages, kaddr, pfn); 179 } 180 > 181 static const struct dax_operations axon_ram_dax_ops = { > 182 .direct_access = axon_ram_dax_direct_access, 183 }; 184 185 /** 186 * axon_ram_probe - probe() method for platform driver 187 * @device: see platform_driver method 188 */ 189 static int axon_ram_probe(struct platform_device *device) 190 { 191 static int axon_ram_bank_id = -1; 192 struct axon_ram_bank *bank; 193 struct resource resource; 194 int rc = 0; 195 196 axon_ram_bank_id++; 197 198 dev_info(&device->dev, "Found memory controller on %s\n", 199 device->dev.of_node->full_name); 200 201 bank = kzalloc(sizeof(struct axon_ram_bank), GFP_KERNEL); 202 if (bank == NULL) { 203 dev_err(&device->dev, "Out of memory\n"); 204 rc = -ENOMEM; 205 goto failed; 206 } 207 208 device->dev.platform_data = bank; 209 210 bank->device = device; 211 212 if (of_address_to_resource(device->dev.of_node, 0, &resource) != 0) { 213 dev_err(&device->dev, "Cannot access device tree\n"); 214 rc = -EFAULT; 215 goto failed; 216 } 217 218 bank->size = resource_size(&resource); 219 220 if (bank->size == 0) { 221 dev_err(&device->dev, "No DDR2 memory found for %s%d\n", 222 AXON_RAM_DEVICE_NAME, axon_ram_bank_id); 223 rc = -ENODEV; 224 goto failed; 225 } 226 227 dev_info(&device->dev, "Register DDR2 memory device %s%d with %luMB\n", 228 AXON_RAM_DEVICE_NAME, axon_ram_bank_id, bank->size >> 20); 229 230 bank->ph_addr = resource.start; 231 bank->io_addr = (unsigned long) ioremap_prot( 232 bank->ph_addr, bank->size, _PAGE_NO_CACHE); 233 if (bank->io_addr == 0) { 234 dev_err(&device->dev, "ioremap() failed\n"); 235 rc = -EFAULT; 236 goto failed; 237 } 238 239 bank->disk = alloc_disk(AXON_RAM_MINORS_PER_DISK); 240 if (bank->disk == NULL) { 241 dev_err(&device->dev, "Cannot register disk\n"); 242 rc = -EFAULT; 243 goto failed; 244 } 245 246 247 bank->disk->major = azfs_major; 248 bank->disk->first_minor = azfs_minor; 249 bank->disk->fops = &axon_ram_devops; 250 bank->disk->private_data = bank; 251 252 sprintf(bank->disk->disk_name, "%s%d", 253 AXON_RAM_DEVICE_NAME, axon_ram_bank_id); 254 > 255 bank->dax_dev = alloc_dax(bank, bank->disk->disk_name, 256 &axon_ram_dax_ops); 257 if (!bank->dax_dev) { 258 rc = -ENOMEM; 259 goto failed; 260 } 261 262 bank->disk->queue = blk_alloc_queue(GFP_KERNEL); 263 if (bank->disk->queue == NULL) { 264 dev_err(&device->dev, "Cannot register disk queue\n"); 265 rc = -EFAULT; 266 goto failed; 267 } 268 269 set_capacity(bank->disk, bank->size >> AXON_RAM_SECTOR_SHIFT); 270 blk_queue_make_request(bank->disk->queue, axon_ram_make_request); 271 blk_queue_logical_block_size(bank->disk->queue, AXON_RAM_SECTOR_SIZE); 272 device_add_disk(&device->dev, bank->disk); 273 274 bank->irq_id = irq_of_parse_and_map(device->dev.of_node, 0); 275 if (!bank->irq_id) { 276 dev_err(&device->dev, "Cannot access ECC interrupt ID\n"); 277 rc = -EFAULT; 278 goto failed; 279 } 280 281 rc = request_irq(bank->irq_id, axon_ram_irq_handler, 282 AXON_RAM_IRQ_FLAGS, bank->disk->disk_name, device); 283 if (rc != 0) { 284 dev_err(&device->dev, "Cannot register ECC interrupt handler\n"); 285 bank->irq_id = 0; 286 rc = -EFAULT; 287 goto failed; 288 } 289 290 rc = device_create_file(&device->dev, &dev_attr_ecc); 291 if (rc != 0) { 292 dev_err(&device->dev, "Cannot create sysfs file\n"); 293 rc = -EFAULT; 294 goto failed; 295 } 296 297 azfs_minor += bank->disk->minors; 298 299 return 0; 300 301 failed: 302 if (bank != NULL) { 303 if (bank->irq_id) 304 free_irq(bank->irq_id, device); 305 if (bank->disk != NULL) { 306 if (bank->disk->major > 0) 307 unregister_blkdev(bank->disk->major, 308 bank->disk->disk_name); 309 if (bank->disk->flags & GENHD_FL_UP) 310 del_gendisk(bank->disk); 311 put_disk(bank->disk); 312 } > 313 kill_dax(bank->dax_dev); > 314 put_dax(bank->dax_dev); 315 device->dev.platform_data = NULL; 316 if (bank->io_addr != 0) 317 iounmap((void __iomem *) bank->io_addr); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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