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authorDavid S. Miller <davem@davemloft.net>2011-05-09 13:31:04 -0700
committerDavid S. Miller <davem@davemloft.net>2011-05-10 13:32:47 -0700
commit79ab053145ae10edf8f0809d1c788b853c7f6ef1 (patch)
tree3817af51a5679168542395dbc69d3fa4cddf175a /net
parent9f6abb5f175bdb9ecfd390000a631bf0abf2fedb (diff)
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 <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/udp.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 66341a3c8d3..599374f65c7 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;
}