net: skb->rtable accessor

Define skb_rtable(const struct sk_buff *skb) accessor to get rtable from skb

Delete skb->rtable field

Setting rtable is not allowed, just set dst instead as rtable is an alias.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 5 deletions

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index ea19c37ccc0c..8d845ebfccaa 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -140,7 +140,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
                           __be32 saddr, __be32 daddr, struct ip_options *opt)
 {
         struct inet_sock *inet = inet_sk(sk);
-        struct rtable *rt = skb->rtable;
+        struct rtable *rt = skb_rtable(skb);
         struct iphdr *iph;
 
         /* Build the IP header. */
@@ -238,7 +238,7 @@ static int ip_finish_output(struct sk_buff *skb)
 int ip_mc_output(struct sk_buff *skb)
 {
         struct sock *sk = skb->sk;
-        struct rtable *rt = skb->rtable;
+        struct rtable *rt = skb_rtable(skb);
         struct net_device *dev = rt->u.dst.dev;
 
         /*
@@ -319,7 +319,7 @@ int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
         /* Skip all of this if the packet is already routed,
          * f.e. by something like SCTP.
          */
-        rt = skb->rtable;
+        rt = skb_rtable(skb);
         if (rt != NULL)
                 goto packet_routed;
 
@@ -440,7 +440,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
         unsigned int mtu, hlen, left, len, ll_rs, pad;
         int offset;
         __be16 not_last_frag;
-        struct rtable *rt = skb->rtable;
+        struct rtable *rt = skb_rtable(skb);
         int err = 0;
 
         dev = rt->u.dst.dev;
@@ -1362,7 +1362,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
         } replyopts;
         struct ipcm_cookie ipc;
         __be32 daddr;
-        struct rtable *rt = skb->rtable;
+        struct rtable *rt = skb_rtable(skb);
 
         if (ip_options_echo(&replyopts.opt, skb))
                 return;