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iommu/amd: Remove duplicate check of pasids 

Remove duplicate check of pasids in amd_iommu_domain_enable_v2(), as it
has been guaranteed in amd_iommu_init_device().

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Link: https://lore.kernel.org/r/1617275956-4467-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Qi Liu 2021-04-01 19:19:16 +08:00 committed by Joerg Roedel
parent 1e28eed176
commit 3e84f878b5
1 changed files with 0 additions and 3 deletions
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3
drivers/iommu/amd/iommu.c
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@ -2310,9 +2310,6 @@ int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids)
unsigned long flags;
int levels, ret;
if (pasids <= 0 || pasids > (PASID_MASK + 1))
return -EINVAL;
/* Number of GCR3 table levels required */
for (levels = 0; (pasids - 1) & ~0x1ff; pasids >>= 9)
levels += 1;