libata: kill qc->nsect and cursect
libata used two separate sets of variables to record request size and
current offset for ATA and ATAPI. This is confusing and fragile.
This patch replaces qc->nsect/cursect with qc->nbytes/curbytes and
kills them. Also, ata_pio_sector() is updated to use bytes for
qc->cursg_ofs instead of sectors. The field used to be used in bytes
for ATAPI and in sectors for ATA.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index ad691b9..ba982ba 100644
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -189,10 +189,7 @@
/* Cases the state machine will not complete correctly without help */
if ((tf->flags & ATA_TFLAG_LBA48) || tf->protocol == ATA_PROT_ATAPI_DMA)
{
- if (tf->flags & ATA_TFLAG_LBA48)
- len = qc->nsect * 512;
- else
- len = qc->nbytes;
+ len = qc->nbytes;
if (tf->flags & ATA_TFLAG_WRITE)
len |= 0x06000000;