diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-05 07:13:30 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-05 07:13:30 -0400 |
| commit | cedc9a478d8c6265879dc3839ef3d4849a709184 (patch) | |
| tree | 0c8e0fbffdb6081381c01b8cfd93c95b168acb44 /drivers/scsi/sata_qstor.c | |
| parent | ed39f731ab2e77e58122232f6e27333331d7793d (diff) | |
libata: fix ATAPI DMA alignment issues
ATAPI needs to be padded to next 4 byte boundary, if misaligned.
Original work by me, many fixes from Tejun Heo.
Diffstat (limited to 'drivers/scsi/sata_qstor.c')
| -rw-r--r-- | drivers/scsi/sata_qstor.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c index ffcdeb68641c..69a9b1cf6f9c 100644 --- a/drivers/scsi/sata_qstor.c +++ b/drivers/scsi/sata_qstor.c @@ -268,16 +268,17 @@ static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) static void qs_fill_sg(struct ata_queued_cmd *qc) { - struct scatterlist *sg = qc->sg; + struct scatterlist *sg; struct ata_port *ap = qc->ap; struct qs_port_priv *pp = ap->private_data; unsigned int nelem; u8 *prd = pp->pkt + QS_CPB_BYTES; - assert(sg != NULL); + assert(qc->__sg != NULL); assert(qc->n_elem > 0); - for (nelem = 0; nelem < qc->n_elem; nelem++,sg++) { + nelem = 0; + ata_for_each_sg(sg, qc) { u64 addr; u32 len; @@ -291,6 +292,7 @@ static void qs_fill_sg(struct ata_queued_cmd *qc) VPRINTK("PRD[%u] = (0x%llX, 0x%X)\n", nelem, (unsigned long long)addr, len); + nelem++; } } |