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ide: add ide_ports[] 

* Add ide_ports[] table keeping pointers to all initialized ports.

* Set ide_ports[] entry for a given port in init_irq() and clear it
  ide_remove_port_from_hwgroup().

* Convert init_irq() to use ide_ports[] instead of ide_hwifs[] for
  grouping ports into hwgroup.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-07-23 19:55:58 +02:00
parent 6059143ae3
commit af1cbba373
1 changed files with 9 additions and 2 deletions
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11
drivers/ide/ide-probe.c
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@ -992,10 +992,14 @@ static void ide_port_setup_devices(ide_hwif_t *hwif)
mutex_unlock(&ide_cfg_mtx);
}
static ide_hwif_t *ide_ports[MAX_HWIFS];
void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
{
ide_hwgroup_t *hwgroup = hwif->hwgroup;
ide_ports[hwif->index] = NULL;
spin_lock_irq(&ide_lock);
/*
* Remove us from the hwgroup, and free
@ -1054,8 +1058,9 @@ static int init_irq (ide_hwif_t *hwif)
* Group up with any other hwifs that share our irq(s).
*/
for (index = 0; index < MAX_HWIFS; index++) {
ide_hwif_t *h = &ide_hwifs[index];
if (h->hwgroup) { /* scan only initialized hwif's */
ide_hwif_t *h = ide_ports[index];
if (h && h->hwgroup) { /* scan only initialized ports */
if (hwif->irq == h->irq) {
hwif->sharing_irq = h->sharing_irq = 1;
if (hwif->chipset != ide_pci ||
@ -1109,6 +1114,8 @@ static int init_irq (ide_hwif_t *hwif)
hwgroup->timer.data = (unsigned long) hwgroup;
}
ide_ports[hwif->index] = hwif;
/*
* Allocate the irq, if not already obtained for another hwif
*/