github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-31 10:33:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

dm zoned: Avoid 64-bit division error in dmz_fixup_devices

Browse Source 
When building arm32 allyesconfig:

ld.lld: error: undefined symbol: __aeabi_uldivmod
>>> referenced by dm-zoned-target.c
>>>               md/dm-zoned-target.o:(dmz_ctr) in archive drivers/built-in.a

dmz_fixup_devices uses DIV_ROUND_UP with variables of type sector_t. As
such, it should be using DIV_ROUND_UP_SECTOR_T, which handles this
automatically.

Fixes: 70978208ec91 ("dm zoned: metadata version 2")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Nathan Chancellor 2020-05-13 01:45:22 -07:00 committed by Mike Snitzer
parent ac75b09fc6
commit 42c689f671
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/md/dm-zoned-target.c
View File

@ -803,8 +803,9 @@ static int dmz_fixup_devices(struct dm_target *ti)
if (reg_dev) {
reg_dev->zone_nr_sectors = zoned_dev->zone_nr_sectors;
reg_dev->nr_zones = DIV_ROUND_UP(reg_dev->capacity,
reg_dev->zone_nr_sectors);
reg_dev->nr_zones =
DIV_ROUND_UP_SECTOR_T(reg_dev->capacity,
reg_dev->zone_nr_sectors);
zoned_dev->zone_offset = reg_dev->nr_zones;
}
return 0;