tree: https://android.googlesource.com/kernel/common android-mainline head: e94931cb2c0ec3992df6dfe452f2145fc5ad2c74 commit: e94931cb2c0ec3992df6dfe452f2145fc5ad2c74 [5/5] ANDROID: Incremental fs: Add INCFS_IOC_PERMIT_FILL reproduce: # apt-get install sparse # sparse version: v0.6.1-180-g0558317d-dirty git checkout e94931cb2c0ec3992df6dfe452f2145fc5ad2c74 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) fs/incfs/vfs.c:1296:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct incfs_fill_block *usr_fill_block_array @@ got truct incfs_fill_block *usr_fill_block_array @@ fs/incfs/vfs.c:1296:30: sparse: expected struct incfs_fill_block *usr_fill_block_array fs/incfs/vfs.c:1296:30: sparse: got void [noderef] <asn:1> * fs/incfs/vfs.c:1304:70: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1> *from @@ got const [noderef] <asn:1> *from @@ fs/incfs/vfs.c:1304:70: sparse: expected void const [noderef] <asn:1> *from fs/incfs/vfs.c:1304:70: sparse: got struct incfs_fill_block * vim +1350 fs/incfs/vfs.c 1344 1345 static long ioctl_permit_fill(struct file *f, void __user *arg) 1346 { 1347 struct incfs_permit_fill __user *usr_permit_fill = arg; 1348 struct incfs_permit_fill permit_fill; 1349 long error = 0; 1351 1352 if (f->f_op != &incfs_pending_read_file_ops) 1353 return -EPERM; 1354 1355 if (copy_from_user(&permit_fill, usr_permit_fill, sizeof(permit_fill))) 1356 return -EFAULT; 1357 1358 file = fget(permit_fill.file_descriptor); 1359 if (IS_ERR(file)) 1360 return PTR_ERR(file); 1361 1362 if (file->f_op != &incfs_file_ops) { 1363 error = -EPERM; 1364 goto out; 1365 } 1366 1367 if (file->f_inode->i_sb != f->f_inode->i_sb) { 1368 error = -EPERM; 1369 goto out; 1370 } 1371 1372 switch ((uintptr_t)file->private_data) { 1373 case CANT_FILL: 1374 file->private_data = (void *)CAN_FILL; 1375 break; 1376 1377 case CAN_FILL: 1378 pr_debug("CAN_FILL already set"); 1379 break; 1380 1381 default: 1382 pr_warn("Invalid file private data"); 1383 error = -EFAULT; 1384 goto out; 1385 } 1386 1387 out: 1388 fput(file); 1389 return error; 1390 } 1391 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org