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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>
hifive-unleashed-5.1
David Woodhouse 2010-08-10 01:38:53 +01:00
parent d1423d5679
commit 1a8bd481bf
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/intel-iommu.c
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@ -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
}