97a29d59fc
The problem in
commit fea80311a9
Author: Randy Dunlap <rdunlap@xenotime.net>
Date: Sun Jul 24 11:39:14 2011 -0700
iomap: make IOPORT/PCI mapping functions conditional
is that if your architecture supplies pci_iomap/pci_iounmap, it expects
always to supply them. Adding empty body defitions in the !CONFIG_PCI
case, which is what this patch does, breaks the parisc compile because
the functions become doubly defined. It took us a while to spot this,
because we don't actually build !CONFIG_PCI very often (only if someone
is brave enough to test the snake/asp machines).
Since the note in the commit log says this is to fix a
CONFIG_GENERIC_IOMAP issue (which it does because CONFIG_GENERIC_IOMAP
supplies pci_iounmap only if CONFIG_PCI is set), there should actually
have been a condition upon this. This should make sure no other
architecture's !CONFIG_PCI compile breaks in the same way as parisc.
The fix had to be updated to take account of the GENERIC_PCI_IOMAP
separation.
Reported-by: Rolf Eike Beer <eike@sf-mail.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* Generic I/O port emulation, based on MN10300 code
|
|
*
|
|
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public Licence
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the Licence, or (at your option) any later version.
|
|
*/
|
|
#ifndef __ASM_GENERIC_PCI_IOMAP_H
|
|
#define __ASM_GENERIC_PCI_IOMAP_H
|
|
|
|
struct pci_dev;
|
|
#ifdef CONFIG_PCI
|
|
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
|
|
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
|
|
/* Create a virtual mapping cookie for a port on a given PCI device.
|
|
* Do not call this directly, it exists to make it easier for architectures
|
|
* to override */
|
|
#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
|
|
extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
|
|
unsigned int nr);
|
|
#else
|
|
#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
|
|
#endif
|
|
|
|
#elif defined(CONFIG_GENERIC_PCI_IOMAP)
|
|
static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ASM_GENERIC_IO_H */
|