Commit 3e84f878 authored by Qi Liu's avatar Qi Liu Committed by Joerg Roedel
Browse files

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: default avatarQi Liu <liuqi115@huawei.com>
Link: https://lore.kernel.org/r/1617275956-4467-1-git-send-email-liuqi115@huawei.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 1e28eed1

drivers/iommu/amd/iommu.c

+0 −3
Original line number Diff line number Diff line
@@ -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;