ieee802154: change cca ed level to mbm

This patch change the handling of cca energy detection level from dbm to
mbm. This prepares to handle floating point cca energy detection levels
values. The old netlink 802.15.4 will convert the dbm value to mbm for
handling backward compatibility.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/mac802154/driver-ops.h b/net/mac802154/driver-ops.h
index d289ae3..caecd5f 100644
--- a/net/mac802154/driver-ops.h
+++ b/net/mac802154/driver-ops.h
@@ -96,7 +96,7 @@
 }
 
 static inline int
-drv_set_cca_ed_level(struct ieee802154_local *local, s32 ed_level)
+drv_set_cca_ed_level(struct ieee802154_local *local, s32 mbm)
 {
 	might_sleep();
 
@@ -105,7 +105,7 @@
 		return -EOPNOTSUPP;
 	}
 
-	return local->ops->set_cca_ed_level(&local->hw, ed_level);
+	return local->ops->set_cca_ed_level(&local->hw, mbm);
 }
 
 static inline int drv_set_pan_id(struct ieee802154_local *local, __le16 pan_id)