Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-28 13:51:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

[PARISC] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional

Browse Source 
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>
This commit is contained in:
James Bottomley 2012-01-30 10:40:47 -06:00 committed by James Bottomley
parent 500dd2370e
commit 97a29d59fc
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/asm-generic/iomap.h
View File

@ -70,7 +70,7 @@ extern void ioport_unmap(void __iomem *);
/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
#else
#elif defined(CONFIG_GENERIC_IOMAP)
struct pci_dev;
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{ }

2
include/asm-generic/pci_iomap.h
View File

@ -25,7 +25,7 @@ extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
#endif
#else
#elif defined(CONFIG_GENERIC_PCI_IOMAP)
static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
{
return NULL;