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H A Dio-pgtable-arm.cdiff 67f3e53d2a37ab27b00610eb25724103055beafc Fri Oct 25 13:08:32 CDT 2019 Robin Murphy <robin.murphy@arm.com> iommu/io-pgtable-arm: Simplify bounds checks

We're merely checking that the relevant upper bits of each address
are all zero, so there are cheaper ways to achieve that.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>