lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts

Browse Source 
(Anonymous) unions can help us to avoid ugly casts.

A common cast it the (struct rtable *)skb->dst one.

Defining an union like  :
union {
     struct dst_entry *dst;
     struct rtable *rtable;
};
permits to use skb->rtable in place.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2008-03-05 18:30:47 -08:00
committed by David S. Miller
parent a05c44f6d5
commit ee6b967301
23 changed files with 69 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
net/sctp/protocol.c
View File

@@ -363,7 +363,7 @@ static int sctp_v4_addr_valid(union sctp_addr *addr,
return 0;
/* Is this a broadcast address? */
if (skb && ((struct rtable *)skb->dst)->rt_flags & RTCF_BROADCAST)
if (skb && skb->rtable->rt_flags & RTCF_BROADCAST)
return 0;
return 1;
@@ -539,7 +539,7 @@ static void sctp_v4_get_saddr(struct sctp_association *asoc,
/* What interface did this skb arrive on? */
static int sctp_v4_skb_iif(const struct sk_buff *skb)
{
return ((struct rtable *)skb->dst)->rt_iif;
return skb->rtable->rt_iif;
}
/* Was this packet marked by Explicit Congestion Notification? */
@@ -828,8 +828,8 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
SCTP_DEBUG_PRINTK("%s: skb:%p, len:%d, "
"src:%u.%u.%u.%u, dst:%u.%u.%u.%u\n",
__FUNCTION__, skb, skb->len,
NIPQUAD(((struct rtable *)skb->dst)->rt_src),
NIPQUAD(((struct rtable *)skb->dst)->rt_dst));
NIPQUAD(skb->rtable->rt_src),
NIPQUAD(skb->rtable->rt_dst));
SCTP_INC_STATS(SCTP_MIB_OUTSCTPPACKS);
return ip_queue_xmit(skb, ipfragok);