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pata_arasan_cf: declare/use more local variables in arasan_cf_dma_start() 

'acdev->qc', 'acdev->qc->ap', and 'acdev->qc->tf' expressions are used multiple
times in this function, so it makes sense to use the local variables for them.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Sergei Shtylyov 2012-11-01 18:28:36 +03:00 committed by Jeff Garzik
parent 121650a555
commit 52bd4978c6
1 changed files with 5 additions and 2 deletions
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7
drivers/ata/pata_arasan_cf.c
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@ -674,13 +674,16 @@ void arasan_cf_error_handler(struct ata_port *ap)
static void arasan_cf_dma_start(struct arasan_cf_dev *acdev)
{
struct ata_queued_cmd *qc = acdev->qc;
struct ata_port *ap = qc->ap;
struct ata_taskfile *tf = &qc->tf;
u32 xfer_ctr = readl(acdev->vbase + XFER_CTR) & ~XFER_DIR_MASK;
u32 write = acdev->qc->tf.flags & ATA_TFLAG_WRITE;
u32 write = tf->flags & ATA_TFLAG_WRITE;
xfer_ctr |= write ? XFER_WRITE : XFER_READ;
writel(xfer_ctr, acdev->vbase + XFER_CTR);
acdev->qc->ap->ops->sff_exec_command(acdev->qc->ap, &acdev->qc->tf);
ap->ops->sff_exec_command(ap, tf);
ata_sff_queue_work(&acdev->work);
}