diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat/dma_v3.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index 3686dddf6bff..35d1e33afd5b 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -448,7 +448,8 @@ ioat3_prep_memset_lock(struct dma_chan *c, dma_addr_t dest, int value, /* pass */; else return NULL; - for (i = 0; i < num_descs; i++) { + i = 0; + do { size_t xfer_size = min_t(size_t, len, 1 << ioat->xfercap_log); desc = ioat2_get_ring_ent(ioat, idx + i); @@ -463,7 +464,7 @@ ioat3_prep_memset_lock(struct dma_chan *c, dma_addr_t dest, int value, len -= xfer_size; dest += xfer_size; dump_desc_dbg(ioat, desc); - } + } while (++i < num_descs); desc->txd.flags = flags; desc->len = total_len; @@ -518,7 +519,8 @@ __ioat3_prep_xor_lock(struct dma_chan *c, enum sum_check_flags *result, /* pass */; else return NULL; - for (i = 0; i < num_descs; i += 1 + with_ext) { + i = 0; + do { struct ioat_raw_descriptor *descs[2]; size_t xfer_size = min_t(size_t, len, 1 << ioat->xfercap_log); int s; @@ -546,7 +548,7 @@ __ioat3_prep_xor_lock(struct dma_chan *c, enum sum_check_flags *result, len -= xfer_size; offset += xfer_size; dump_desc_dbg(ioat, desc); - } + } while ((i += 1 + with_ext) < num_descs); /* last xor descriptor carries the unmap parameters and fence bit */ desc->txd.flags = flags; @@ -664,7 +666,8 @@ __ioat3_prep_pq_lock(struct dma_chan *c, enum sum_check_flags *result, /* pass */; else return NULL; - for (i = 0; i < num_descs; i += 1 + with_ext) { + i = 0; + do { struct ioat_raw_descriptor *descs[2]; size_t xfer_size = min_t(size_t, len, 1 << ioat->xfercap_log); @@ -703,7 +706,7 @@ __ioat3_prep_pq_lock(struct dma_chan *c, enum sum_check_flags *result, len -= xfer_size; offset += xfer_size; - } + } while ((i += 1 + with_ext) < num_descs); /* last pq descriptor carries the unmap parameters and fence bit */ desc->txd.flags = flags; |