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Commit bad7c825 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

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: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 1baccff8

drivers/ide/setup-pci.c

+15 −32
Original line number Diff line number Diff line
@@ -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;