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libata: ata_timing_compute() fixup 

XFER_SW_DMA_0 mode should be excluded from the extended cycle timing
computations.

Acked-by: Alan Cox <alan@linux.intel.com>
Noticed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2011-10-13 15:17:32 +02:00 committed by Jeff Garzik
parent 9f8abf8248
commit bff00256f1
1 changed files with 1 additions and 1 deletions
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2
drivers/ata/libata-core.c
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@ -2938,7 +2938,7 @@ int ata_timing_compute(struct ata_device *adev, unsigned short speed,
if (id[ATA_ID_FIELD_VALID] & 2) { /* EIDE drive */
memset(&p, 0, sizeof(p));
if (speed >= XFER_PIO_0 && speed <= XFER_SW_DMA_0) {
if (speed >= XFER_PIO_0 && speed < XFER_SW_DMA_0) {
if (speed <= XFER_PIO_2)
p.cycle = p.cyc8b = id[ATA_ID_EIDE_PIO];
else if ((speed <= XFER_PIO_4) ||