From: Qi Liu Date: Thu, 1 Apr 2021 11:19:16 +0000 (+0800) Subject: iommu/amd: Remove duplicate check of pasids X-Git-Tag: v5.15~1219^2~2^8~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3e84f878b56b075b9a81de6e73da7b3dc88387d8;p=platform%2Fkernel%2Flinux-starfive.git 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 Link: https://lore.kernel.org/r/1617275956-4467-1-git-send-email-liuqi115@huawei.com Signed-off-by: Joerg Roedel --- diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index a69a8b573e40..70814ab0b374 100644 --- 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;