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authorTejun Heo <htejun@gmail.com>2007-08-06 05:36:23 -0400
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:30 -0400
commitf58229f8060055b08b34008ea08f31de1e2f003c (patch)
tree6ca5ef546671cb975ef3632fb032c238eaf1bb4c /drivers/ata/pata_it821x.c
parent9af5c9c97dc9d599281778864c72b385f0c63341 (diff)
libata-link: implement and use link/device iterators
Multiple links and different number of devices per link should be considered to iterate over links and devices. This patch implements and uses link and device iterators - ata_port_for_each_link() and ata_link_for_each_dev() - and ata_link_max_devices(). This change makes a lot of functions iterate over only possible devices instead of from dev 0 to dev ATA_MAX_DEVICES. All such changes have been examined and nothing should be broken. While at it, add a separating comment before device helpers to distinguish them better from link helpers and others. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_it821x.c')
-rw-r--r--drivers/ata/pata_it821x.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index ece1a28f0a4a..088eb1d23761 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -461,10 +461,9 @@ static unsigned int it821x_passthru_qc_issue_prot(struct ata_queued_cmd *qc)
461 461
462static int it821x_smart_set_mode(struct ata_port *ap, struct ata_device **unused) 462static int it821x_smart_set_mode(struct ata_port *ap, struct ata_device **unused)
463{ 463{
464 int i; 464 struct ata_device *dev;
465 465
466 for (i = 0; i < ATA_MAX_DEVICES; i++) { 466 ata_link_for_each_dev(dev, &ap->link) {
467 struct ata_device *dev = &ap->link.device[i];
468 if (ata_dev_enabled(dev)) { 467 if (ata_dev_enabled(dev)) {
469 /* We don't really care */ 468 /* We don't really care */
470 dev->pio_mode = XFER_PIO_0; 469 dev->pio_mode = XFER_PIO_0;