diff options
Diffstat (limited to 'drivers/ata/pata_icside.c')
| -rw-r--r-- | drivers/ata/pata_icside.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c index cf9e9848f8b..d7bc925c524 100644 --- a/drivers/ata/pata_icside.c +++ b/drivers/ata/pata_icside.c @@ -45,8 +45,6 @@ static const struct portinfo pata_icside_portinfo_v6_2 = { .stepping = 6, }; -#define PATA_ICSIDE_MAX_SG 128 - struct pata_icside_state { void __iomem *irq_port; void __iomem *ioc_base; @@ -57,7 +55,6 @@ struct pata_icside_state { u8 disabled; unsigned int speed[ATA_MAX_DEVICES]; } port[2]; - struct scatterlist sg[PATA_ICSIDE_MAX_SG]; }; struct pata_icside_info { @@ -222,9 +219,7 @@ static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct pata_icside_state *state = ap->host->private_data; - struct scatterlist *sg, *rsg = state->sg; unsigned int write = qc->tf.flags & ATA_TFLAG_WRITE; - unsigned int si; /* * We are simplex; BUG if we try to fiddle with DMA @@ -233,20 +228,12 @@ static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc) BUG_ON(dma_channel_active(state->dma)); /* - * Copy ATAs scattered sg list into a contiguous array of sg - */ - for_each_sg(qc->sg, sg, qc->n_elem, si) { - memcpy(rsg, sg, sizeof(*sg)); - rsg++; - } - - /* * Route the DMA signals to the correct interface */ writeb(state->port[ap->port_no].port_sel, state->ioc_base); set_dma_speed(state->dma, state->port[ap->port_no].speed[qc->dev->devno]); - set_dma_sg(state->dma, state->sg, rsg - state->sg); + set_dma_sg(state->dma, qc->sg, qc->n_elem); set_dma_mode(state->dma, write ? DMA_MODE_WRITE : DMA_MODE_READ); /* issue r/w command */ @@ -306,8 +293,8 @@ static int icside_dma_init(struct pata_icside_info *info) static struct scsi_host_template pata_icside_sht = { ATA_BASE_SHT(DRV_NAME), - .sg_tablesize = PATA_ICSIDE_MAX_SG, - .dma_boundary = ~0, /* no dma boundaries */ + .sg_tablesize = SCSI_MAX_SG_CHAIN_SEGMENTS, + .dma_boundary = IOMD_DMA_BOUNDARY, }; static void pata_icside_postreset(struct ata_link *link, unsigned int *classes) |