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authorFenghua Yu <fenghua.yu@intel.com>2008-10-24 01:51:00 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2008-10-24 20:09:43 +0200
commit3b15e581981b3ad35809f56d8131d5c19b6da1bd (patch)
treebfd195b86451f2ee5600a05be32346b157ff97db /arch/ia64
parentlibata: fix bug with non-ncq devices (diff)
downloadlinux-3b15e581981b3ad35809f56d8131d5c19b6da1bd.tar.xz
linux-3b15e581981b3ad35809f56d8131d5c19b6da1bd.zip
x86/PCI: build failure at x86/kernel/pci-dma.c with !CONFIG_PCI
On Thu, Oct 23, 2008 at 04:09:52PM -0700, Alexander Beregalov wrote: > arch/x86/kernel/built-in.o: In function `iommu_setup': > pci-dma.c:(.init.text+0x36ad): undefined reference to `forbid_dac' > pci-dma.c:(.init.text+0x36cc): undefined reference to `forbid_dac' > pci-dma.c:(.init.text+0x3711): undefined reference to `forbid_dac This patch partially reverts a patch to add IOMMU support to ia64. The forbid_dac variable was incorrectly moved to quirks.c, which isn't built when PCI is disabled. Tested-by: "Alexander Beregalov" <a.beregalov@gmail.com> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/include/asm/iommu.h1
-rw-r--r--arch/ia64/kernel/pci-dma.c7
2 files changed, 0 insertions, 8 deletions
diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index 5fb2bb93de3b..0490794fe4aa 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -11,6 +11,5 @@ extern int force_iommu, no_iommu;
extern int iommu_detected;
extern void iommu_dma_init(void);
extern void machvec_init(const char *name);
-extern int forbid_dac;
#endif
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 10a75b557650..031abbf9c875 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -89,13 +89,6 @@ int iommu_dma_supported(struct device *dev, u64 mask)
{
struct dma_mapping_ops *ops = get_dma_ops(dev);
-#ifdef CONFIG_PCI
- if (mask > 0xffffffff && forbid_dac > 0) {
- dev_info(dev, "Disallowing DAC for device\n");
- return 0;
- }
-#endif
-
if (ops->dma_supported_op)
return ops->dma_supported_op(dev, mask);