diff options
| -rw-r--r-- | drivers/md/dm-verity-fec.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index d132fd5dc7b4..d2c55896e6f7 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -377,7 +377,7 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, { int r; struct dm_verity_fec_io *fio; - u64 offset, res, rsb; + u64 offset, rsb; if (!verity_fec_is_enabled(v)) return -EOPNOTSUPP; @@ -405,13 +405,13 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io, */ offset = block << v->data_dev_block_bits; - res = div64_u64(offset, v->fec->region_blocks << v->data_dev_block_bits); /* * The base RS block we can feed to the interleaver to find out all * blocks required for decoding. */ - rsb = offset - res * (v->fec->region_blocks << v->data_dev_block_bits); + div64_u64_rem(offset, v->fec->region_blocks << v->data_dev_block_bits, + &rsb); /* * Locating erasures is slow, so attempt to recover the block without |