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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 17:36:31 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 17:36:31 +0200
commitbad7c825cb27377faf1c926953aa15c980c62620 (patch)
treeb23b40a51c7f6399eae5cedb3fe27d4d209055a8 /drivers/ide/setup-pci.c
parent1baccff8a5823b51d7bf2740ef3ef17e06bfa7e2 (diff)
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ide: cleanup ide_match_hwif()
* Remove no longer needed matching against I/O base and 'io_base' argument. * Move printk() to the caller and remove 'name' argument. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/setup-pci.c')
-rw-r--r--drivers/ide/setup-pci.c47
1 files changed, 15 insertions, 32 deletions
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 2dc3835478ec..7347faf8bc41 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -22,42 +22,20 @@
/**
- * ide_match_hwif - match a PCI IDE against an ide_hwif
- * @io_base: I/O base of device
- * @bootable: set if its bootable
- * @name: name of device
+ * ide_match_hwif - find free ide_hwifs[] slot
+ * @bootable: bootable flag
*
- * Match a PCI IDE port against an entry in ide_hwifs[],
- * based on io_base port if possible. Return the matching hwif,
- * or a new hwif. If we find an error (clashing, out of devices, etc)
- * return NULL
- *
- * FIXME: we need to handle mmio matches here too
+ * Return the new hwif. If we are out of free slots return NULL.
*/
-static ide_hwif_t *ide_match_hwif(unsigned long io_base, u8 bootable, const char *name)
+static ide_hwif_t *ide_match_hwif(u8 bootable)
{
- int h;
ide_hwif_t *hwif;
+ int h;
/*
- * Look for a hwif with matching io_base default value.
- * If chipset is "ide_unknown", then claim that hwif slot.
- * Otherwise, some other chipset has already claimed it.. :(
- */
- for (h = 0; h < MAX_HWIFS; ++h) {
- hwif = &ide_hwifs[h];
- if (hwif->io_ports[IDE_DATA_OFFSET] == io_base) {
- if (hwif->chipset == ide_unknown)
- return hwif; /* match */
- printk(KERN_ERR "%s: port 0x%04lx already claimed by %s\n",
- name, io_base, hwif->name);
- return NULL; /* already claimed */
- }
- }
- /*
- * Okay, there is no hwif matching our io_base,
- * so we'll just claim an unassigned slot.
+ * 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 1f0/170 (the ide0/ide1 defaults).
@@ -83,7 +61,7 @@ static ide_hwif_t *ide_match_hwif(unsigned long io_base, u8 bootable, const char
if (hwif->chipset == ide_unknown)
return hwif; /* pick an unused entry */
}
- printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", name);
+
return NULL;
}
@@ -367,8 +345,13 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
ctl = port ? 0x374 : 0x3f4;
base = port ? 0x170 : 0x1f0;
}
- if ((hwif = ide_match_hwif(base, bootable, d->name)) == NULL)
- return NULL; /* no room in ide_hwifs[] */
+
+ hwif = ide_match_hwif(bootable);
+ if (hwif == NULL) {
+ printk(KERN_ERR "%s: too many IDE interfaces, no room in "
+ "table\n", d->name);
+ return NULL;
+ }
memset(&hw, 0, sizeof(hw));
hw.irq = irq;