Fix pci_unmap_addr() et al on i386.
authorDavid Woodhouse <dwmw2@infradead.org>
Wed, 1 Jul 2009 17:34:52 +0000 (18:34 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 1 Jul 2009 18:19:29 +0000 (11:19 -0700)
commit788d84bba47ea3eb377f7a3ae4fd1ee84b84877b
treef2241d5da4fe36949d1f5964d5134b883b329840
parente2dbe12557d85d81f4527879499f55681c3cca4f
Fix pci_unmap_addr() et al on i386.

We can run a 32-bit kernel on boxes with an IOMMU, so we need
pci_unmap_addr() etc. to work -- without it, drivers will leak mappings.

To be honest, this whole thing looks like it's more pain than it's
worth; I'm half inclined to remove the no-op #else case altogether.

But this is the minimal fix, which just does the right thing if
CONFIG_DMAR is set.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org [ for 2.6.30 ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86/include/asm/pci.h