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, 4 insertions, 4 deletions

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 8eb3e61cb701..cb2c50dbd421 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -393,7 +393,7 @@ static int sctp_v4_addr_valid(union sctp_addr *addr,
                 return 0;
 
         /* Is this a broadcast address? */
-        if (skb && skb->rtable->rt_flags & RTCF_BROADCAST)
+        if (skb && skb_rtable(skb)->rt_flags & RTCF_BROADCAST)
                 return 0;
 
         return 1;
@@ -572,7 +572,7 @@ static void sctp_v4_get_saddr(struct sctp_sock *sk,
 /* What interface did this skb arrive on? */
 static int sctp_v4_skb_iif(const struct sk_buff *skb)
 {
-        return skb->rtable->rt_iif;
+        return skb_rtable(skb)->rt_iif;
 }
 
 /* Was this packet marked by Explicit Congestion Notification? */
@@ -848,8 +848,8 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
 
         SCTP_DEBUG_PRINTK("%s: skb:%p, len:%d, src:%pI4, dst:%pI4\n",
                           __func__, skb, skb->len,
-                          &skb->rtable->rt_src,
-                          &skb->rtable->rt_dst);
+                          &skb_rtable(skb)->rt_src,
+                          &skb_rtable(skb)->rt_dst);
 
         inet->pmtudisc = transport->param_flags & SPP_PMTUD_ENABLE ?
                          IP_PMTUDISC_DO : IP_PMTUDISC_DONT;