diff --git a/net/ieee802154/core.h b/net/ieee802154/core.h
index 26752ca54b4ff21fb7cb07053e27224e482ba20d..1bc1725871573f95368fd69a65728b137e548981 100644
--- a/net/ieee802154/core.h
+++ b/net/ieee802154/core.h
@@ -12,6 +12,14 @@ struct cfg802154_registered_device {
 	struct wpan_phy wpan_phy __aligned(NETDEV_ALIGN);
 };
 
+static inline struct cfg802154_registered_device *
+wpan_phy_to_rdev(struct wpan_phy *wpan_phy)
+{
+	BUG_ON(!wpan_phy);
+	return container_of(wpan_phy, struct cfg802154_registered_device,
+			    wpan_phy);
+}
+
 /* free object */
 void cfg802154_dev_free(struct cfg802154_registered_device *rdev);