From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pranith Kumar Subject: [PATCH 1/1] use documented cmpxchg api Date: Thu, 05 Jun 2014 18:19:51 -0400 Message-ID: <5390ED07.2070009@gatech.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: dwmw2@infradead.org, joro@8bytes.org Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org List-Id: iommu@lists.linux-foundation.org use the documented atomic_cmpxchg instead of __cmpxchg64 This kills the last user of said API in drivers code. Signed-off-by: Pranith Kumar --- drivers/iommu/intel-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 6bb3277..270113f 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -293,7 +293,7 @@ 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->val, 0ULL, 0ULL) & VTD_PAGE_MASK; + return atomic_cmpxchg(&pte->val, 0ULL, 0ULL) & VTD_PAGE_MASK; #endif } -- 1.7.9.5