Stop embedding struct ifnet at the top of driver softcs. Instead the

struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam

1 files changed, 3 insertions, 1 deletions

diff --git a/sys/contrib/pf/net/if_pflog.h b/sys/contrib/pf/net/if_pflog.h
index 157dd35..68560e4 100644
--- a/sys/contrib/pf/net/if_pflog.h
+++ b/sys/contrib/pf/net/if_pflog.h
@@ -30,9 +30,11 @@
 #define _NET_IF_PFLOG_H_
 
 struct pflog_softc {
-	struct ifnet	sc_if;  /* the interface */
 #ifdef __FreeBSD__
+	struct ifnet	*sc_ifp;  /* the interface */
 	LIST_ENTRY(pflog_softc) sc_next;
+#else
+	struct ifnet	sc_if;  /* the interface */
 #endif
 };