From 79ab053145ae10edf8f0809d1c788b853c7f6ef1 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 9 May 2011 13:31:04 -0700 Subject: [PATCH] ipv4: udp: Eliminate remaining uses of rt->rt_src We already track and pass around the correct flow key, so simply use it in udp_send_skb(). Signed-off-by: David S. Miller --- net/ipv4/udp.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 66341a3c8d36..599374f65c76 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -706,12 +706,11 @@ static void udp4_hwcsum(struct sk_buff *skb, __be32 src, __be32 dst) } } -static int udp_send_skb(struct sk_buff *skb, __be32 daddr, __be32 dport) +static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4) { struct sock *sk = skb->sk; struct inet_sock *inet = inet_sk(sk); struct udphdr *uh; - struct rtable *rt = (struct rtable *)skb_dst(skb); int err = 0; int is_udplite = IS_UDPLITE(sk); int offset = skb_transport_offset(skb); @@ -723,7 +722,7 @@ static int udp_send_skb(struct sk_buff *skb, __be32 daddr, __be32 dport) */ uh = udp_hdr(skb); uh->source = inet->inet_sport; - uh->dest = dport; + uh->dest = fl4->fl4_dport; uh->len = htons(len); uh->check = 0; @@ -737,14 +736,14 @@ static int udp_send_skb(struct sk_buff *skb, __be32 daddr, __be32 dport) } else if (skb->ip_summed == CHECKSUM_PARTIAL) { /* UDP hardware csum */ - udp4_hwcsum(skb, rt->rt_src, daddr); + udp4_hwcsum(skb, fl4->saddr, fl4->daddr); goto send; } else csum = udp_csum(skb); /* add protocol-dependent pseudo-header */ - uh->check = csum_tcpudp_magic(rt->rt_src, daddr, len, + uh->check = csum_tcpudp_magic(fl4->saddr, fl4->daddr, len, sk->sk_protocol, csum); if (uh->check == 0) uh->check = CSUM_MANGLED_0; @@ -778,7 +777,7 @@ static int udp_push_pending_frames(struct sock *sk) if (!skb) goto out; - err = udp_send_skb(skb, fl4->daddr, fl4->fl4_dport); + err = udp_send_skb(skb, fl4); out: up->len = 0; @@ -963,7 +962,7 @@ back_from_confirm: msg->msg_flags); err = PTR_ERR(skb); if (skb && !IS_ERR(skb)) - err = udp_send_skb(skb, daddr, dport); + err = udp_send_skb(skb, fl4); goto out; } -- 2.20.1