net: skb->dst accessors
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>
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 7e1074f..94bf105 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -143,7 +143,7 @@
__be32 addr;
memcpy(&addr, sptr+soffset-1, 4);
- if (inet_addr_type(dev_net(skb->dst->dev), addr) != RTN_LOCAL) {
+ if (inet_addr_type(dev_net(skb_dst(skb)->dev), addr) != RTN_LOCAL) {
dopt->ts_needtime = 1;
soffset += 8;
}
@@ -624,12 +624,12 @@
memcpy(&nexthop, &optptr[srrptr-1], 4);
rt = skb_rtable(skb);
- skb->dst = NULL;
+ skb_dst_set(skb, NULL);
err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, skb->dev);
rt2 = skb_rtable(skb);
if (err || (rt2->rt_type != RTN_UNICAST && rt2->rt_type != RTN_LOCAL)) {
ip_rt_put(rt2);
- skb->dst = &rt->u.dst;
+ skb_dst_set(skb, &rt->u.dst);
return -EINVAL;
}
ip_rt_put(rt);