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iommu/vt-d: Remove redundant assignment to variable agaw 

The variable agaw is initialized with a value that is never read and it
is being updated later with a new value as a counter in a for-loop. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20210416171826.64091-1-colin.king@canonical.com
Link: https://lore.kernel.org/r/20210610020115.1637656-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Colin Ian King 2021-06-10 10:00:53 +08:00 committed by Joerg Roedel
parent 8124c8a6b3
commit 05d2cbf969
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/intel/iommu.c
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@ -564,7 +564,7 @@ static inline int domain_pfn_supported(struct dmar_domain *domain,
static int __iommu_calculate_agaw(struct intel_iommu *iommu, int max_gaw)
{
unsigned long sagaw;
int agaw = -1;
int agaw;
sagaw = cap_sagaw(iommu->cap);
for (agaw = width_to_agaw(max_gaw);