[PATCH] libata: Fix heuristic typos add LBA48PIO flag and support code, add IRQ flag for next diff
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index b42acbe0..e604445 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -611,6 +611,10 @@
if (dev->flags & ATA_DFLAG_PIO) {
tf->protocol = ATA_PROT_PIO;
index = dev->multi_count ? 0 : 8;
+ } else if (lba48 && (qc->ap->flags & ATA_FLAG_PIO_LBA48)) {
+ /* Unable to use DMA due to host limitation */
+ tf->protocol = ATA_PROT_PIO;
+ index = dev->multi_count ? 0 : 4;
} else {
tf->protocol = ATA_PROT_DMA;
index = 16;