net-ipv4: remove 2 always zero parameters from ipv4_update_pmtu()

(the parameters in question are mark and flow_flags)

Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

8 files changed, 10 insertions, 13 deletions

diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 4dd95cdd8070..8811fe30282a 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -461,7 +461,7 @@ static int ah4_err(struct sk_buff *skb, u32 info)
 		return 0;
 
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
-		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_AH, 0);
+		ipv4_update_pmtu(skb, net, info, 0, IPPROTO_AH);
 	else
 		ipv4_redirect(skb, net, 0, 0, IPPROTO_AH, 0);
 	xfrm_state_put(x);
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 97689012b357..2d0274441923 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -820,7 +820,7 @@ static int esp4_err(struct sk_buff *skb, u32 info)
 		return 0;
 
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
-		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_ESP, 0);
+		ipv4_update_pmtu(skb, net, info, 0, IPPROTO_ESP);
 	else
 		ipv4_redirect(skb, net, 0, 0, IPPROTO_ESP, 0);
 	xfrm_state_put(x);
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 695979b7ef6d..8013b37b598f 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1098,7 +1098,7 @@ void icmp_err(struct sk_buff *skb, u32 info)
 	}
 
 	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED)
-		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_ICMP, 0);
+		ipv4_update_pmtu(skb, net, info, 0, IPPROTO_ICMP);
 	else if (type == ICMP_REDIRECT)
 		ipv4_redirect(skb, net, 0, 0, IPPROTO_ICMP, 0);
 }
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index c3385a84f8ff..83b80fafd8f2 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -239,7 +239,7 @@ static void gre_err(struct sk_buff *skb, u32 info)
 
 	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
 		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
-				 skb->dev->ifindex, 0, IPPROTO_GRE, 0);
+				 skb->dev->ifindex, IPPROTO_GRE);
 		return;
 	}
 	if (type == ICMP_REDIRECT) {
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index f38cb21d773d..1b5571cb3282 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -318,7 +318,7 @@ static int vti4_err(struct sk_buff *skb, u32 info)
 		return 0;
 
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
-		ipv4_update_pmtu(skb, net, info, 0, 0, protocol, 0);
+		ipv4_update_pmtu(skb, net, info, 0, protocol);
 	else
 		ipv4_redirect(skb, net, 0, 0, protocol, 0);
 	xfrm_state_put(x);
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index d97f4f2787f5..04049d1330a2 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -48,7 +48,7 @@ static int ipcomp4_err(struct sk_buff *skb, u32 info)
 		return 0;
 
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
-		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_COMP, 0);
+		ipv4_update_pmtu(skb, net, info, 0, IPPROTO_COMP);
 	else
 		ipv4_redirect(skb, net, 0, 0, IPPROTO_COMP, 0);
 	xfrm_state_put(x);
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index c891235b4966..6ff008e5818d 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -175,8 +175,7 @@ static int ipip_err(struct sk_buff *skb, u32 info)
 	}
 
 	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
-		ipv4_update_pmtu(skb, net, info, t->parms.link, 0,
-				 iph->protocol, 0);
+		ipv4_update_pmtu(skb, net, info, t->parms.link, iph->protocol);
 		goto out;
 	}
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index b678466da451..7bbe3fc80b90 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1040,17 +1040,15 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
 }
 
 void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu,
-		      int oif, u32 mark, u8 protocol, int flow_flags)
+		      int oif, u8 protocol)
 {
 	const struct iphdr *iph = (const struct iphdr *) skb->data;
 	struct flowi4 fl4;
 	struct rtable *rt;
-
-	if (!mark)
-		mark = IP4_REPLY_MARK(net, skb->mark);
+	u32 mark = IP4_REPLY_MARK(net, skb->mark);
 
 	__build_flow_key(net, &fl4, NULL, iph, oif,
-			 RT_TOS(iph->tos), protocol, mark, flow_flags);
+			 RT_TOS(iph->tos), protocol, mark, 0);
 	rt = __ip_route_output_key(net, &fl4);
 	if (!IS_ERR(rt)) {
 		__ip_rt_update_pmtu(rt, &fl4, mtu);