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authorDavid Woodhouse <David.Woodhouse@intel.com>2010-08-10 01:38:53 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-08-10 01:38:53 +0100
commit1a8bd481bfba30515b54368d90a915db3faf302f (patch)
treee90098ad46912fbe78fbbd09a2715cc3d6daf36a /drivers/pci/intel-iommu.c
parentd1423d5679875ebbbc2fc63b33d465baceee0430 (diff)
downloadlinux-linaro-stable-1a8bd481bfba30515b54368d90a915db3faf302f.tar.gz
intel-iommu: Fix 32-bit build warning with __cmpxchg()
drivers/pci/intel-iommu.c: In function 'dma_pte_addr': drivers/pci/intel-iommu.c:239: warning: passing argument 1 of '__cmpxchg64' from incompatible pointer type It seems that __cmpxchg64() now cares about the type of its pointer argument, so give it a (uint64_t *) instead of a pointer to a structure which contains only that. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/pci/intel-iommu.c')
-rw-r--r--drivers/pci/intel-iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index c9171be74564..603cdc0c854a 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -236,7 +236,7 @@ static inline u64 dma_pte_addr(struct dma_pte *pte)
return pte->val & VTD_PAGE_MASK;
#else
/* Must have a full atomic 64-bit read */
- return __cmpxchg64(pte, 0ULL, 0ULL) & VTD_PAGE_MASK;
+ return __cmpxchg64(&pte->val, 0ULL, 0ULL) & VTD_PAGE_MASK;
#endif
}