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iommu/vt-d: Delete unnecessary check in domain_context_mapping_one() 

Variable did_old is unsigned so checking whether it is
greater or equal to zero is not necessary.

Signed-off-by: Christos Gkekas <chris.gekas@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Christos Gkekas 2017-10-08 23:33:31 +01:00 committed by Joerg Roedel
parent ec154bf56b
commit b117e03805
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/intel-iommu.c
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@ -2058,7 +2058,7 @@ 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,