tree: git://neil.brown.name/md devel
head: 3ad01dcc5180761bf7686dd6e6fb8083ca22b913
commit: 768e16727c9b1f35a809a8068b218743fd8fb557 [40/44] MD: add new bit to indicate raid array with journal
reproduce:
# apt-get install sparse
git checkout 768e16727c9b1f35a809a8068b218743fd8fb557
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
drivers/md/md.c:1480:34: sparse: cast to restricted __le64
drivers/md/md.c:1782:40: sparse: incorrect type in assignment (different base types)
drivers/md/md.c:1782:40: expected unsigned long long [unsigned] [long] [long long] [usertype] <noident>
drivers/md/md.c:1782:40: got restricted __le64 [usertype] <noident>
>> drivers/md/md.c:1813:33: sparse: invalid assignment: |=
drivers/md/md.c:1813:33: left side has type restricted __le32
drivers/md/md.c:1813:33: right side has type int
drivers/md/md.c:1862:26: sparse: incorrect type in assignment (different base types)
drivers/md/md.c:1862:26: expected restricted __le64 [usertype] super_offset
drivers/md/md.c:1862:26: got unsigned long [unsigned] [usertype] sb_start
drivers/md/md.c:2268:31: sparse: cast to restricted __le64
drivers/md/md.c:2268:31: sparse: cast from restricted __le32
vim +1813 drivers/md/md.c
1797 max_dev = rdev2->desc_nr+1;
1798
1799 if (max_dev > le32_to_cpu(sb->max_dev)) {
1800 int bmask;
1801 sb->max_dev = cpu_to_le32(max_dev);
1802 rdev->sb_size = max_dev * 2 + 256;
1803 bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
1804 if (rdev->sb_size & bmask)
1805 rdev->sb_size = (rdev->sb_size | bmask) + 1;
1806 } else
1807 max_dev = le32_to_cpu(sb->max_dev);
1808
1809 for (i=0; i<max_dev;i++)
1810 sb->dev_roles[i] = cpu_to_le16(MD_DISK_ROLE_FAULTY);
1811
1812 if (test_bit(MD_HAS_JOURNAL, &mddev->flags))
> 1813 sb->feature_map |= MD_FEATURE_JOURNAL;
1814
1815 rdev_for_each(rdev2, mddev) {
1816 i = rdev2->desc_nr;
1817 if (test_bit(Faulty, &rdev2->flags))
1818 sb->dev_roles[i] = cpu_to_le16(MD_DISK_ROLE_FAULTY);
1819 else if (test_bit(In_sync, &rdev2->flags))
1820 sb->dev_roles[i] = cpu_to_le16(rdev2->raid_disk);
1821 else if (test_bit(Journal, &rdev2->flags))
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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