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authorChristos Gkekas <chris.gekas@gmail.com>2017-10-08 23:33:31 +0100
committerJoerg Roedel <jroedel@suse.de>2017-10-10 14:09:50 +0200
commitb117e0380513c186065f247a9af09dc0cd3e703d (patch)
treed048a031bce53f3deae60d610153ba1032f7968e /drivers/iommu
parentec154bf56b276a0bb36079a5d22a267b5f417801 (diff)
downloadlinux-b117e0380513c186065f247a9af09dc0cd3e703d.tar.bz2
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>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/intel-iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 934cef924461..1dab9f73a20b 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -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,