ide: add port and host iterators

Add ide_port_for_each_dev() / ide_host_for_each_port() iterators
and update IDE code to use them.

While at it:
- s/unit/i/ variable in ide_port_wait_ready(), ide_probe_port(),
  ide_port_tune_devices(), ide_port_init_devices_data(), do_reset1(),
  ide_acpi_set_state() and scc_dma_end()
- s/d/i/ variable in ide_proc_port_register_devices()

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 8a6f893d127e..258805da15c3 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -488,6 +488,7 @@ MODULE_PARM_DESC(ignore_cable, "ignore cable detection");
 
 void ide_port_apply_params(ide_hwif_t *hwif)
 {
+        ide_drive_t *drive;
         int i;
 
         if (ide_ignore_cable & (1 << hwif->index)) {
@@ -496,8 +497,8 @@ void ide_port_apply_params(ide_hwif_t *hwif)
                 hwif->cbl = ATA_CBL_PATA40_SHORT;
         }
 
-        for (i = 0; i < MAX_DRIVES; i++)
-                ide_dev_apply_params(hwif->devices[i], i);
+        ide_port_for_each_dev(i, drive, hwif)
+                ide_dev_apply_params(drive, i);
 }
 
 /*