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[PATCH] libata: add dev->ap

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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>
This commit is contained in:
Tejun Heo 2006-05-15 20:57:51 +09:00
parent a0ab51cefc
commit 38d87234d6
2 changed files with 2 additions and 0 deletions
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1
drivers/scsi/libata-core.c
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@ -4749,6 +4749,7 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
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;

1
include/linux/libata.h
View File

@ -358,6 +358,7 @@ struct ata_host_stats {
};
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 */