Hi Jonas, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on block/for-next] [also build test WARNING on v5.0-rc4 next-20190204] [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/David-Kozub/block-sed-opal-support-shadow-MBR-done-flag-and-write/20190205-005425 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: i386-randconfig-x002-201905 (attached as .config) compiler: gcc-8 (Debian 8.2.0-14) 8.2.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): block/sed-opal.c: In function 'write_shadow_mbr': >> block/sed-opal.c:1520:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] src = (u8 *) shadow->data; ^ vim +1520 block/sed-opal.c 1509 1510 static int write_shadow_mbr(struct opal_dev *dev, void *data) 1511 { 1512 struct opal_shadow_mbr *shadow = data; 1513 const u8 __user *src; 1514 u8 *dst; 1515 size_t off = 0; 1516 u64 len; 1517 int err = 0; 1518 1519 /* do the actual transmission(s) */ > 1520 src = (u8 *) shadow->data; 1521 while (off < shadow->size) { 1522 err = cmd_start(dev, opaluid[OPAL_MBR], opalmethod[OPAL_SET]); 1523 add_token_u8(&err, dev, OPAL_STARTNAME); 1524 add_token_u8(&err, dev, OPAL_WHERE); 1525 add_token_u64(&err, dev, shadow->offset + off); 1526 add_token_u8(&err, dev, OPAL_ENDNAME); 1527 1528 add_token_u8(&err, dev, OPAL_STARTNAME); 1529 add_token_u8(&err, dev, OPAL_VALUES); 1530 1531 /* 1532 * The bytestring header is either 1 or 2 bytes, so assume 2. 1533 * There also needs to be enough space to accommodate the 1534 * trailing OPAL_ENDNAME (1 byte) and tokens added by 1535 * cmd_finalize. 1536 */ 1537 len = min(remaining_size(dev) - (2+1+CMD_FINALIZE_BYTES_NEEDED), 1538 (size_t)(shadow->size - off)); 1539 pr_debug("MBR: write bytes %zu+%llu/%llu\n", 1540 off, len, shadow->size); 1541 1542 dst = add_bytestring_header(&err, dev, len); 1543 if (!dst) 1544 break; 1545 if (copy_from_user(dst, src + off, len)) 1546 err = -EFAULT; 1547 dev->pos += len; 1548 1549 add_token_u8(&err, dev, OPAL_ENDNAME); 1550 if (err) 1551 break; 1552 1553 err = finalize_and_send(dev, parse_and_check_status); 1554 if (err) 1555 break; 1556 1557 off += len; 1558 } 1559 return err; 1560 } 1561 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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