--- if_loop.c.orig	Wed Aug 22 14:22:54 2001
+++ if_loop.c	Wed Aug 22 14:23:52 2001
@@ -223,22 +223,8 @@
 	}
 
 	/* Let BPF see incoming packet */
-	if (ifp->if_bpf) {
-		struct mbuf m0, *n = m;
-
-		/*
-		 * We need to prepend the address family as
-		 * a four byte field.  Cons up a dummy header
-		 * to pacify bpf.  This is safe because bpf
-		 * will only read from the mbuf (i.e., it won't
-		 * try to free it or keep a pointer a to it).
-		 */
-		m0.m_next = m;
-		m0.m_len = 4;
-		m0.m_data = (char *)⁡
-		n = &m0;
-		bpf_mtap(ifp, n);
-	}
+	if (ifp->if_bpf)
+		bpf_mtap(ifp, m);
 
 	/* Strip away media header */
 	if (hlen > 0) {