ide: merge ide_match_hwif() and ide_find_port()
* Change ide_match_hwif() argument from 'u8 bootable' to
'struct ide_port_info *d'.
* Move ide_match_hwif() to ide-probe.c from setup-pci.c and rename
it to ide_find_port_slot(). Update some comments while at it.
* ide_find_port() can be now just a wrapper for ide_find_port_slot().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 6a196c2..f81793f 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1444,6 +1444,52 @@
return rc;
}
+/**
+ * ide_find_port_slot - find free ide_hwifs[] slot
+ * @d: IDE port info
+ *
+ * Return the new hwif. If we are out of free slots return NULL.
+ */
+
+ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d)
+{
+ ide_hwif_t *hwif;
+ int i;
+ u8 bootable = (d && (d->host_flags & IDE_HFLAG_NON_BOOTABLE)) ? 0 : 1;
+
+ /*
+ * Claim an unassigned slot.
+ *
+ * Give preference to claiming other slots before claiming ide0/ide1,
+ * just in case there's another interface yet-to-be-scanned
+ * which uses ports 0x1f0/0x170 (the ide0/ide1 defaults).
+ *
+ * Unless there is a bootable card that does not use the standard
+ * ports 0x1f0/0x170 (the ide0/ide1 defaults).
+ */
+ if (bootable) {
+ for (i = 0; i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->chipset == ide_unknown)
+ return hwif;
+ }
+ } else {
+ for (i = 2; i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->chipset == ide_unknown)
+ return hwif;
+ }
+ for (i = 0; i < 2 && i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->chipset == ide_unknown)
+ return hwif;
+ }
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(ide_find_port_slot);
+
int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
{
ide_hwif_t *hwif, *mate = NULL;