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>

diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index a69a8b573e40d004ffaac632b9be88ed1c58b71b..70814ab0b374aff04692dbe4d0fe4b6536e2a45d 100644 (file)
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -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;