Hi Dan, [auto build test WARNING on powerpc/next] [also build test WARNING 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-allyesconfig (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 warnings (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: warning: initialization makes pointer from integer without a cast [-Wint-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: warning: excess elements in struct initializer .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: warning: assignment makes pointer from integer without a cast [-Wint-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: some warnings being treated as errors vim +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; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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