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Commit abbb8a09 authored by Robin Murphy's avatar Robin Murphy Committed by Joerg Roedel
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iommu/iova: Don't try to copy anchor nodes 



Anchor nodes are not reserved IOVAs in the way that copy_reserved_iova()
cares about - while the failure from reserve_iova() is benign since the
target domain will already have its own anchor, we still don't want to
be triggering spurious warnings.

Reported-by: default avatarkernel test robot <fengguang.wu@intel.com>
Signed-off-by: default avatarRobin Murphy <robin.murphy@arm.com>
Fixes: bb68b2fb ('iommu/iova: Add rbtree anchor node')
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent e8b19840

drivers/iommu/iova.c

+3 −0
Original line number Diff line number Diff line
@@ -704,6 +704,9 @@ copy_reserved_iova(struct iova_domain *from, struct iova_domain *to) 
		struct iova *iova = rb_entry(node, struct iova, node);

		struct iova *new_iova;



		if (iova->pfn_lo == IOVA_ANCHOR)

			continue;



		new_iova = reserve_iova(to, iova->pfn_lo, iova->pfn_hi);

		if (!new_iova)

			printk(KERN_ERR "Reserve iova range %lx@%lx failed\n",