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We needn't expose the function as it's only used by mmu.c since it was introduced by commit c64735554c0a ("KVM: arm: Add initial dirty page locking support"). Signed-off-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Keqian Zhu <zhukeqian1@huawei.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210316041126.81860-2-gshan@redhat.com