net-ipv4: remove 2 always zero parameters from ipv4_redirect()

(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>

include/net/route.h

@@ -203,8 +203,7 @@ static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src,
 void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu, int oif,
 		      u8 protocol);
 void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu);
-void ipv4_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark,
-		   u8 protocol, int flow_flags);
+void ipv4_redirect(struct sk_buff *skb, struct net *net, int oif, u8 protocol);
 void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk);
 void ip_rt_send_redirect(struct sk_buff *skb);
 

net/ipv4/ah4.c

@@ -463,7 +463,7 @@ static int ah4_err(struct sk_buff *skb, u32 info)
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, IPPROTO_AH);
 	else
-		ipv4_redirect(skb, net, 0, 0, IPPROTO_AH, 0);
+		ipv4_redirect(skb, net, 0, IPPROTO_AH);
 	xfrm_state_put(x);
 
 	return 0;

net/ipv4/esp4.c

@@ -822,7 +822,7 @@ static int esp4_err(struct sk_buff *skb, u32 info)
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, IPPROTO_ESP);
 	else
-		ipv4_redirect(skb, net, 0, 0, IPPROTO_ESP, 0);
+		ipv4_redirect(skb, net, 0, IPPROTO_ESP);
 	xfrm_state_put(x);
 
 	return 0;

net/ipv4/icmp.c

@@ -1100,7 +1100,7 @@ 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, IPPROTO_ICMP);
 	else if (type == ICMP_REDIRECT)
-		ipv4_redirect(skb, net, 0, 0, IPPROTO_ICMP, 0);
+		ipv4_redirect(skb, net, 0, IPPROTO_ICMP);
 }
 
 /*

net/ipv4/ip_gre.c

@@ -243,8 +243,8 @@ static void gre_err(struct sk_buff *skb, u32 info)
 		return;
 	}
 	if (type == ICMP_REDIRECT) {
-		ipv4_redirect(skb, dev_net(skb->dev), skb->dev->ifindex, 0,
-			      IPPROTO_GRE, 0);
+		ipv4_redirect(skb, dev_net(skb->dev), skb->dev->ifindex,
+			      IPPROTO_GRE);
 		return;
 	}
 

net/ipv4/ip_vti.c

@@ -320,7 +320,7 @@ static int vti4_err(struct sk_buff *skb, u32 info)
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, protocol);
 	else
-		ipv4_redirect(skb, net, 0, 0, protocol, 0);
+		ipv4_redirect(skb, net, 0, protocol);
 	xfrm_state_put(x);
 
 	return 0;

net/ipv4/ipcomp.c

@@ -50,7 +50,7 @@ static int ipcomp4_err(struct sk_buff *skb, u32 info)
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, IPPROTO_COMP);
 	else
-		ipv4_redirect(skb, net, 0, 0, IPPROTO_COMP, 0);
+		ipv4_redirect(skb, net, 0, IPPROTO_COMP);
 	xfrm_state_put(x);
 
 	return 0;

net/ipv4/ipip.c

@@ -180,7 +180,7 @@ static int ipip_err(struct sk_buff *skb, u32 info)
 	}
 
 	if (type == ICMP_REDIRECT) {
-		ipv4_redirect(skb, net, t->parms.link, 0, iph->protocol, 0);
+		ipv4_redirect(skb, net, t->parms.link, iph->protocol);
 		goto out;
 	}
 

net/ipv4/route.c

@@ -1130,14 +1130,14 @@ out:
 EXPORT_SYMBOL_GPL(ipv4_sk_update_pmtu);
 
 void ipv4_redirect(struct sk_buff *skb, struct net *net,
-		   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;
 
 	__build_flow_key(net, &fl4, NULL, iph, oif,
-			 RT_TOS(iph->tos), protocol, mark, flow_flags);
+			 RT_TOS(iph->tos), protocol, 0, 0);
 	rt = __ip_route_output_key(net, &fl4);
 	if (!IS_ERR(rt)) {
 		__ip_do_redirect(rt, skb, &fl4, false);

net/ipv6/sit.c

@@ -539,8 +539,8 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 		goto out;
 	}
 	if (type == ICMP_REDIRECT) {
-		ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
-			      iph->protocol, 0);
+		ipv4_redirect(skb, dev_net(skb->dev), t->parms.link,
+			      iph->protocol);
 		err = 0;
 		goto out;
 	}

net/xfrm/xfrm_interface.c

@@ -471,7 +471,7 @@ static int xfrmi4_err(struct sk_buff *skb, u32 info)
 	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, protocol);
 	else
-		ipv4_redirect(skb, net, 0, 0, protocol, 0);
+		ipv4_redirect(skb, net, 0, protocol);
 	xfrm_state_put(x);
 
 	return 0;