[PATCH] dm zoned: Avoid 64-bit division error in dmz_fixup_devices
From: Nathan Chancellor
Date: Wed May 13 2020 - 04:45:49 EST
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@xxxxxxxxx>
---
drivers/md/dm-zoned-target.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index ea43f6892ced..9c4fd4b04878 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -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;
base-commit: e098d7762d602be640c53565ceca342f81e55ad2
--
2.26.2