Hi Mauro, I love your patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on next-20180406] [cannot apply to v4.16] [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/Mauro-Carvalho-Chehab/Make-all-media-drivers-build-with-COMPILE_TEST/20180406-163048 base: git://linuxtv.org/media_tree.git master reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1276:45: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] <asn:1>*from @@ got void [noderef] <asn:1>*from @@ drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1276:45: expected void [noderef] <asn:1>*from drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1276:45: got void *[noderef] <asn:1><noident> >> drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1319:43: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] <asn:1>*to @@ got void [noderef] <asn:1>*to @@ drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1319:43: expected void [noderef] <asn:1>*to drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1319:43: got void *[noderef] <asn:1><noident> >> drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1276:47: sparse: dereference of noderef expression drivers/staging/media/davinci_vpfe/dm365_ipipe.c:1319:45: sparse: dereference of noderef expression -- >> drivers/staging/media/davinci_vpfe/dm365_resizer.c:922:32: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1>*from @@ got stvoid const [noderef] <asn:1>*from @@ drivers/staging/media/davinci_vpfe/dm365_resizer.c:922:32: expected void const [noderef] <asn:1>*from drivers/staging/media/davinci_vpfe/dm365_resizer.c:922:32: got struct vpfe_rsz_config_params *config >> drivers/staging/media/davinci_vpfe/dm365_resizer.c:945:27: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:1>*to @@ got sn:1>*to @@ drivers/staging/media/davinci_vpfe/dm365_resizer.c:945:27: expected void [noderef] <asn:1>*to drivers/staging/media/davinci_vpfe/dm365_resizer.c:945:27: got void *<noident> -- >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:201:27: sparse: incorrect type in assignment (different address spaces) @@ expected void *ipipeif_base_addr @@ got void [noderef] <avoid *ipipeif_base_addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:201:27: expected void *ipipeif_base_addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:201:27: got void [noderef] <asn:2>*ipipeif_base_addr >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: expected void const volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: expected void const volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:424:41: sparse: incorrect type in initializer (different address spaces) @@ expected struct ipipeif_params *config @@ got struct ipipeif_params *config @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:424:41: expected struct ipipeif_params *config drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:424:41: got void [noderef] <asn:1>*arg >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:474:46: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] <asn:1>*arg @@ got sn:1>*arg @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:474:46: expected void [noderef] <asn:1>*arg drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:474:46: got void *arg >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:510:42: sparse: incorrect type in initializer (different address spaces) @@ expected void *ipipeif_base_addr @@ got void [noderef] <avoid *ipipeif_base_addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:510:42: expected void *ipipeif_base_addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:510:42: got void [noderef] <asn:2>*ipipeif_base_addr >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: expected void const volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:71:27: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:797:42: sparse: incorrect type in initializer (different address spaces) @@ expected void *ipipeif_base_addr @@ got void [noderef] <avoid *ipipeif_base_addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:797:42: expected void *ipipeif_base_addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:797:42: got void [noderef] <asn:2>*ipipeif_base_addr >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * >> drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2>*addr @@ got sn:2>*addr @@ drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: expected void volatile [noderef] <asn:2>*addr drivers/staging/media/davinci_vpfe/dm365_ipipeif.c:76:26: got void * vim +1276 drivers/staging/media/davinci_vpfe/dm365_ipipe.c da43b6cca Manjunath Hadli 2012-11-28 1262 da43b6cca Manjunath Hadli 2012-11-28 1263 static int ipipe_s_config(struct v4l2_subdev *sd, struct vpfe_ipipe_config *cfg) da43b6cca Manjunath Hadli 2012-11-28 1264 { da43b6cca Manjunath Hadli 2012-11-28 1265 struct vpfe_ipipe_device *ipipe = v4l2_get_subdevdata(sd); da43b6cca Manjunath Hadli 2012-11-28 1266 unsigned int i; da43b6cca Manjunath Hadli 2012-11-28 1267 int rval = 0; da43b6cca Manjunath Hadli 2012-11-28 1268 da43b6cca Manjunath Hadli 2012-11-28 1269 for (i = 0; i < ARRAY_SIZE(ipipe_modules); i++) { da43b6cca Manjunath Hadli 2012-11-28 1270 unsigned int bit = 1 << i; 3b12c89d0 Lad, Prabhakar 2014-03-29 1271 da43b6cca Manjunath Hadli 2012-11-28 1272 if (cfg->flag & bit) { da43b6cca Manjunath Hadli 2012-11-28 1273 const struct ipipe_module_if *module_if = da43b6cca Manjunath Hadli 2012-11-28 1274 &ipipe_modules[i]; da43b6cca Manjunath Hadli 2012-11-28 1275 struct ipipe_module_params *params; da43b6cca Manjunath Hadli 2012-11-28 @1276 void __user *from = *(void * __user *) da43b6cca Manjunath Hadli 2012-11-28 1277 ((void *)cfg + module_if->config_offset); da43b6cca Manjunath Hadli 2012-11-28 1278 size_t size; da43b6cca Manjunath Hadli 2012-11-28 1279 void *to; da43b6cca Manjunath Hadli 2012-11-28 1280 da43b6cca Manjunath Hadli 2012-11-28 1281 params = kmalloc(sizeof(struct ipipe_module_params), da43b6cca Manjunath Hadli 2012-11-28 1282 GFP_KERNEL); da43b6cca Manjunath Hadli 2012-11-28 1283 to = (void *)params + module_if->param_offset; da43b6cca Manjunath Hadli 2012-11-28 1284 size = module_if->param_size; da43b6cca Manjunath Hadli 2012-11-28 1285 da43b6cca Manjunath Hadli 2012-11-28 1286 if (to && from && size) { da43b6cca Manjunath Hadli 2012-11-28 1287 if (copy_from_user(to, from, size)) { da43b6cca Manjunath Hadli 2012-11-28 1288 rval = -EFAULT; da43b6cca Manjunath Hadli 2012-11-28 1289 break; da43b6cca Manjunath Hadli 2012-11-28 1290 } da43b6cca Manjunath Hadli 2012-11-28 1291 rval = module_if->set(ipipe, to); da43b6cca Manjunath Hadli 2012-11-28 1292 if (rval) da43b6cca Manjunath Hadli 2012-11-28 1293 goto error; da43b6cca Manjunath Hadli 2012-11-28 1294 } else if (to && !from && size) { da43b6cca Manjunath Hadli 2012-11-28 1295 rval = module_if->set(ipipe, NULL); da43b6cca Manjunath Hadli 2012-11-28 1296 if (rval) da43b6cca Manjunath Hadli 2012-11-28 1297 goto error; da43b6cca Manjunath Hadli 2012-11-28 1298 } da43b6cca Manjunath Hadli 2012-11-28 1299 kfree(params); da43b6cca Manjunath Hadli 2012-11-28 1300 } da43b6cca Manjunath Hadli 2012-11-28 1301 } da43b6cca Manjunath Hadli 2012-11-28 1302 error: da43b6cca Manjunath Hadli 2012-11-28 1303 return rval; da43b6cca Manjunath Hadli 2012-11-28 1304 } da43b6cca Manjunath Hadli 2012-11-28 1305 da43b6cca Manjunath Hadli 2012-11-28 1306 static int ipipe_g_config(struct v4l2_subdev *sd, struct vpfe_ipipe_config *cfg) da43b6cca Manjunath Hadli 2012-11-28 1307 { da43b6cca Manjunath Hadli 2012-11-28 1308 struct vpfe_ipipe_device *ipipe = v4l2_get_subdevdata(sd); da43b6cca Manjunath Hadli 2012-11-28 1309 unsigned int i; da43b6cca Manjunath Hadli 2012-11-28 1310 int rval = 0; da43b6cca Manjunath Hadli 2012-11-28 1311 da43b6cca Manjunath Hadli 2012-11-28 1312 for (i = 1; i < ARRAY_SIZE(ipipe_modules); i++) { da43b6cca Manjunath Hadli 2012-11-28 1313 unsigned int bit = 1 << i; 3b12c89d0 Lad, Prabhakar 2014-03-29 1314 da43b6cca Manjunath Hadli 2012-11-28 1315 if (cfg->flag & bit) { da43b6cca Manjunath Hadli 2012-11-28 1316 const struct ipipe_module_if *module_if = da43b6cca Manjunath Hadli 2012-11-28 1317 &ipipe_modules[i]; da43b6cca Manjunath Hadli 2012-11-28 1318 struct ipipe_module_params *params; da43b6cca Manjunath Hadli 2012-11-28 @1319 void __user *to = *(void * __user *) da43b6cca Manjunath Hadli 2012-11-28 1320 ((void *)cfg + module_if->config_offset); da43b6cca Manjunath Hadli 2012-11-28 1321 size_t size; da43b6cca Manjunath Hadli 2012-11-28 1322 void *from; da43b6cca Manjunath Hadli 2012-11-28 1323 da43b6cca Manjunath Hadli 2012-11-28 1324 params = kmalloc(sizeof(struct ipipe_module_params), da43b6cca Manjunath Hadli 2012-11-28 1325 GFP_KERNEL); da43b6cca Manjunath Hadli 2012-11-28 1326 from = (void *)params + module_if->param_offset; da43b6cca Manjunath Hadli 2012-11-28 1327 size = module_if->param_size; da43b6cca Manjunath Hadli 2012-11-28 1328 da43b6cca Manjunath Hadli 2012-11-28 1329 if (to && from && size) { da43b6cca Manjunath Hadli 2012-11-28 1330 rval = module_if->get(ipipe, from); da43b6cca Manjunath Hadli 2012-11-28 1331 if (rval) da43b6cca Manjunath Hadli 2012-11-28 1332 goto error; da43b6cca Manjunath Hadli 2012-11-28 1333 if (copy_to_user(to, from, size)) { da43b6cca Manjunath Hadli 2012-11-28 1334 rval = -EFAULT; da43b6cca Manjunath Hadli 2012-11-28 1335 break; da43b6cca Manjunath Hadli 2012-11-28 1336 } da43b6cca Manjunath Hadli 2012-11-28 1337 } da43b6cca Manjunath Hadli 2012-11-28 1338 kfree(params); da43b6cca Manjunath Hadli 2012-11-28 1339 } da43b6cca Manjunath Hadli 2012-11-28 1340 } da43b6cca Manjunath Hadli 2012-11-28 1341 error: da43b6cca Manjunath Hadli 2012-11-28 1342 return rval; da43b6cca Manjunath Hadli 2012-11-28 1343 } da43b6cca Manjunath Hadli 2012-11-28 1344 :::::: The code at line 1276 was first introduced by commit :::::: da43b6ccadcfe801e0316503334f8281b8679210 [media] davinci: vpfe: dm365: add IPIPE support for media controller driver :::::: TO: Manjunath Hadli <manjunath.hadli@xxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx 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