From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christos Gkekas Subject: [PATCH] iommu/vt-d: Delete unnecessary check Date: Sun, 8 Oct 2017 23:33:31 +0100 Message-ID: <1507502011-18062-1-git-send-email-chris.gekas@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: David Woodhouse , Joerg Roedel , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Cc: Christos Gkekas List-Id: iommu@lists.linux-foundation.org Variable did_old is unsigned so checking whether it is greater or equal to zero is not necessary. Signed-off-by: Christos Gkekas --- 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 ebb4835..cb7ce99 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2054,7 +2054,7 @@ static int domain_context_mapping_one(struct dmar_domain *domain, if (context_copied(context)) { u16 did_old = context_domain_id(context); - if (did_old >= 0 && did_old < cap_ndoms(iommu->cap)) { + if (did_old < cap_ndoms(iommu->cap)) { iommu->flush.flush_context(iommu, did_old, (((u16)bus) << 8) | devfn, DMA_CCMD_MASK_NOBIT, -- 2.7.4