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authorJeff Garzik <jgarzik@pobox.com>2005-10-18 22:14:54 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-10-18 22:14:54 -0400
commit972c26bdd6b58e7534473c4f7928584578cf43f4 (patch)
treee32f940cf913ee80ac7ae5e3d92d53f90a6b6552 /drivers/scsi/sata_sil24.c
parentb194b4250c2b7e9d762823ac6045316fcd4bf4f9 (diff)
libata: add ata_sg_is_last() helper, use it in several drivers
Diffstat (limited to 'drivers/scsi/sata_sil24.c')
-rw-r--r--drivers/scsi/sata_sil24.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 19857814d69..e16d1815cda 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -416,15 +416,20 @@ static void sil24_phy_reset(struct ata_port *ap)
static inline void sil24_fill_sg(struct ata_queued_cmd *qc,
struct sil24_cmd_block *cb)
{
- struct scatterlist *sg = qc->sg;
struct sil24_sge *sge = cb->sge;
- unsigned i;
+ struct scatterlist *sg;
+ unsigned int idx = 0;
- for (i = 0; i < qc->n_elem; i++, sg++, sge++) {
+ ata_for_each_sg(sg, qc) {
sge->addr = cpu_to_le64(sg_dma_address(sg));
sge->cnt = cpu_to_le32(sg_dma_len(sg));
- sge->flags = 0;
- sge->flags = i < qc->n_elem - 1 ? 0 : cpu_to_le32(SGE_TRM);
+ if (ata_sg_is_last(sg, qc))
+ sge->flags = cpu_to_le32(SGE_TRM);
+ else
+ sge->flags = 0;
+
+ sge++;
+ idx++;
}
}