Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=00edefae050c2c2d1e26fa9984f8f529fbc45989
Commit: 00edefae050c2c2d1e26fa9984f8f529fbc45989
Parent: ffb6017563aa15f9a8cff9a30b861d42c2695894
Author: Andi Kleen <[EMAIL PROTECTED]>
AuthorDate: Tue Feb 13 13:26:24 2007 +0100
Committer: Andi Kleen <[EMAIL PROTECTED]>
CommitDate: Tue Feb 13 13:26:24 2007 +0100
[PATCH] x86-64: Fix off by one error in IOMMU boundary checking
Should be harmless because there is normally no memory there, but
technically it was incorrect.
Pointed out by Leo Duran
Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
---
arch/x86_64/kernel/pci-gart.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index fc1960f..030eb37 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -185,7 +185,7 @@ static void iommu_full(struct device *dev, size_t size, int
dir)
static inline int need_iommu(struct device *dev, unsigned long addr, size_t
size)
{
u64 mask = *dev->dma_mask;
- int high = addr + size >= mask;
+ int high = addr + size > mask;
int mmu = high;
if (force_iommu)
mmu = 1;
@@ -195,7 +195,7 @@ static inline int need_iommu(struct device *dev, unsigned
long addr, size_t size
static inline int nonforced_iommu(struct device *dev, unsigned long addr,
size_t size)
{
u64 mask = *dev->dma_mask;
- int high = addr + size >= mask;
+ int high = addr + size > mask;
int mmu = high;
return mmu;
}
-
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