iommu/io-pgtable: Make io_pgtable_ops_to_pgtable() macro common
There is no need to keep a useful accessor for a public structure hidden
away in a private implementation. Move it out alongside the structure
definition so that other implementations may reuse it.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
index 2e18469..36673c8 100644
--- a/drivers/iommu/io-pgtable.h
+++ b/drivers/iommu/io-pgtable.h
@@ -131,6 +131,8 @@
struct io_pgtable_ops ops;
};
+#define io_pgtable_ops_to_pgtable(x) container_of((x), struct io_pgtable, ops)
+
/**
* struct io_pgtable_init_fns - Alloc/free a set of page tables for a
* particular format.