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b2a53bc636
On Tuesday 05 February 2008, Linus Torvalds wrote:
>
> On Sat, 2 Feb 2008, Bartlomiej Zolnierkiewicz wrote:
> >
> > * next part of IDE probing code re-organization saga
> > (that would be me)
>
> This seems to cause very irritating and bogus messages for me:
>
> Probing IDE interface ide0...
> Probing IDE interface ide1...
> ide2: I/O resource 0x0-0x7 not free.
> ide2: ports already in use, skipping probe
> ide3: I/O resource 0x0-0x7 not free.
> ide3: ports already in use, skipping probe
> ide4: I/O resource 0x0-0x7 not free.
> ide4: ports already in use, skipping probe
> ide5: I/O resource 0x0-0x7 not free.
> ide5: ports already in use, skipping probe
> ide6: I/O resource 0x0-0x7 not free.
> ide6: ports already in use, skipping probe
> ide7: I/O resource 0x0-0x7 not free.
> ide7: ports already in use, skipping probe
> ide8: I/O resource 0x0-0x7 not free.
> ide8: ports already in use, skipping probe
> ide9: I/O resource 0x0-0x7 not free.
> ide9: ports already in use, skipping probe
>
> and that's just totally bogus. It shouldn't even request that region,
> since it's not been allocated!
The commit 139ddfcab5 ("ide: move handling of
I/O resources out of ide_probe_port()") changed the ordering of hwif->noprobe
check vs ide_hwif_request_regions() call (so that we now reserve I/O regions
before checking for hwif->noprobe). However ide-generic host driver depended
on hwif->noprobe to be set for skipping probing of empty ide_hwifs[] slots.
Fix it by passing only indexes of non-empty slots to ide_device_add_all()
from ide_generic_init().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
43 lines
880 B
C
43 lines
880 B
C
/*
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* generic/default IDE host driver
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*
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* Copyright (C) 2004 Bartlomiej Zolnierkiewicz
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* This code was split off from ide.c. See it for original copyrights.
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*
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* May be copied or modified under the terms of the GNU General Public License.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/ide.h>
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static int __init ide_generic_init(void)
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{
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u8 idx[MAX_HWIFS];
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int i;
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if (ide_hwifs[0].io_ports[IDE_DATA_OFFSET])
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ide_get_lock(NULL, NULL); /* for atari only */
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for (i = 0; i < MAX_HWIFS; i++) {
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ide_hwif_t *hwif = &ide_hwifs[i];
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if (hwif->io_ports[IDE_DATA_OFFSET] && !hwif->present)
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idx[i] = i;
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else
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idx[i] = 0xff;
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}
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ide_device_add_all(idx, NULL);
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if (ide_hwifs[0].io_ports[IDE_DATA_OFFSET])
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ide_release_lock(); /* for atari only */
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return 0;
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}
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module_init(ide_generic_init);
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MODULE_LICENSE("GPL");
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