[PATCH] libata: add dev->ap
Add dev->ap which points back to the port the device belongs to. This
makes it unnecessary to pass @ap for silly reasons (e.g. printks).
Also, this change is necessary to accomodate later PM support which
will introduce ATA link inbetween port and device.
Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 56f0af2..31b65e0 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -4749,6 +4749,7 @@
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
+ dev->ap = ap;
dev->devno = i;
dev->pio_mask = UINT_MAX;
dev->mwdma_mask = UINT_MAX;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index cd467cd..ac2d2cc 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -358,6 +358,7 @@
};
struct ata_device {
+ struct ata_port *ap;
u64 n_sectors; /* size of device, if ATA */
unsigned long flags; /* ATA_DFLAG_xxx */
unsigned int class; /* ATA_DEV_xxx */