pf: remove unused 'dir' argument in pf_reassemble()

pf_reassemble() only uses it to pass to pf_ip2key(), which also does not use it.

Sponsored by:	Rubicon Communications, LLC ("Netgate")

sys/netpfil/pf/pf_norm.c

@@ -147,7 +147,7 @@ static struct pf_fragment *pf_fillup_fragment(struct pf_fragment_cmp *,
 		    struct pf_frent *, u_short *);
 static struct mbuf *pf_join_fragment(struct pf_fragment *);
 #ifdef INET
-static int	pf_reassemble(struct mbuf **, int, u_short *);
+static int	pf_reassemble(struct mbuf **, u_short *);
 #endif	/* INET */
 #ifdef INET6
 static int	pf_reassemble6(struct mbuf **,
@@ -163,7 +163,7 @@ static int	pf_reassemble6(struct mbuf **,
 
 #ifdef INET
 static void
-pf_ip2key(struct ip *ip, int dir, struct pf_fragment_cmp *key)
+pf_ip2key(struct ip *ip, struct pf_fragment_cmp *key)
 {
 
 	key->frc_src.v4 = ip->ip_src;
@@ -735,7 +735,7 @@ pf_join_fragment(struct pf_fragment *frag)
 
 #ifdef INET
 static int
-pf_reassemble(struct mbuf **m0, int dir, u_short *reason)
+pf_reassemble(struct mbuf **m0, u_short *reason)
 {
 	struct mbuf		*m = *m0;
 	struct ip		*ip = mtod(m, struct ip *);
@@ -759,7 +759,7 @@ pf_reassemble(struct mbuf **m0, int dir, u_short *reason)
 	frent->fe_off = (ntohs(ip->ip_off) & IP_OFFMASK) << 3;
 	frent->fe_mff = ntohs(ip->ip_off) & IP_MF;
 
-	pf_ip2key(ip, dir, &key);
+	pf_ip2key(ip, &key);
 
 	if ((frag = pf_fillup_fragment(&key, frent, reason)) == NULL)
 		return (PF_DROP);
@@ -1200,7 +1200,7 @@ pf_normalize_ip(u_short *reason, struct pf_pdesc *pd)
 		 * Might return a completely reassembled mbuf, or NULL */
 		PF_FRAG_LOCK();
 		DPFPRINTF(("reass frag %d @ %d-%d\n", h->ip_id, fragoff, max));
-		verdict = pf_reassemble(&pd->m, pd->dir, reason);
+		verdict = pf_reassemble(&pd->m, reason);
 		PF_FRAG_UNLOCK();
 
 		if (verdict != PF_PASS)