Move the cloned interface list management in to if_clone. For some drivers the

softc lists and associated mutex are now unused so these have been removed.

Calling if_clone_detach() will now destroy all the cloned interfaces for the
driver and in most cases is all thats needed to unload.

Idea by:	brooks
Reviewed by:	brooks

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/net/if_var.h b/sys/net/if_var.h
index 783ddd8..b09319f 100644
--- a/sys/net/if_var.h
+++ b/sys/net/if_var.h
@@ -180,6 +180,7 @@ struct ifnet {
 	struct	task if_starttask;	/* task for IFF_NEEDSGIANT */
 	struct	task if_linktask;	/* task for link change events */
 	struct	mtx if_addr_mtx;	/* mutex to protect address lists */
+	LIST_ENTRY(ifnet) if_clones;	/* interfaces of a cloner */
 };
 
 typedef void if_init_f_t(void *);