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net: skb->dst accessors

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Define three accessors to get/set dst attached to a skb

struct dst_entry *skb_dst(const struct sk_buff *skb)

void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)

void skb_dst_drop(struct sk_buff *skb)
This one should replace occurrences of :
dst_release(skb->dst)
skb->dst = NULL;

Delete skb->dst field

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2009-06-02 05:19:30 +00:00
committed by David S. Miller
parent 511c3f92ad
commit adf30907d6
83 changed files with 414 additions and 390 deletions
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17
net/ipv6/mcast.c
View File

@ -1448,6 +1448,7 @@ static void mld_sendpack(struct sk_buff *skb)
struct net *net = dev_net(skb->dev);
int err;
struct flowi fl;
struct dst_entry *dst;
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
@ -1459,9 +1460,9 @@ static void mld_sendpack(struct sk_buff *skb)
IPPROTO_ICMPV6, csum_partial(skb_transport_header(skb),
mldlen, 0));
skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
if (!skb->dst) {
if (!dst) {
err = -ENOMEM;
goto err_out;
}
@ -1470,7 +1471,8 @@ static void mld_sendpack(struct sk_buff *skb)
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
err = xfrm_lookup(net, &skb->dst, &fl, NULL, 0);
err = xfrm_lookup(net, &dst, &fl, NULL, 0);
skb_dst_set(skb, dst);
if (err)
goto err_out;
@ -1775,6 +1777,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
IPV6_TLV_ROUTERALERT, 2, 0, 0,
IPV6_TLV_PADN, 0 };
struct flowi fl;
struct dst_entry *dst;
if (type == ICMPV6_MGM_REDUCTION)
snd_addr = &in6addr_linklocal_allrouters;
@ -1828,8 +1831,8 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
idev = in6_dev_get(skb->dev);
skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
if (!skb->dst) {
dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
if (!dst) {
err = -ENOMEM;
goto err_out;
}
@ -1838,11 +1841,11 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
err = xfrm_lookup(net, &skb->dst, &fl, NULL, 0);
err = xfrm_lookup(net, &dst, &fl, NULL, 0);
if (err)
goto err_out;
skb_dst_set(skb, dst);
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
dst_output);
out: