diff options
author | Eric Dumazet <dada1@cosmosbay.com> | 2008-03-05 18:30:47 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-03-05 18:30:47 -0800 |
commit | ee6b967301b4aa5d4a4b61e2f682f086266db9fb (patch) | |
tree | 197c2430f87733dc80d00d1971f1be2a0e562358 /net/ipv4/route.c | |
parent | a05c44f6d5fb6cd29da04f96bf5ffaa05f545ac5 (diff) | |
download | op-kernel-dev-ee6b967301b4aa5d4a4b61e2f682f086266db9fb.zip op-kernel-dev-ee6b967301b4aa5d4a4b61e2f682f086266db9fb.tar.gz |
[IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts
(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>
Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r-- | net/ipv4/route.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 8c3e165..1051326 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1289,7 +1289,7 @@ reject_redirect: static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst) { - struct rtable *rt = (struct rtable*)dst; + struct rtable *rt = (struct rtable *)dst; struct dst_entry *ret = dst; if (rt) { @@ -1330,7 +1330,7 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst) void ip_rt_send_redirect(struct sk_buff *skb) { - struct rtable *rt = (struct rtable*)skb->dst; + struct rtable *rt = skb->rtable; struct in_device *in_dev = in_dev_get(rt->u.dst.dev); if (!in_dev) @@ -1379,7 +1379,7 @@ out: static int ip_error(struct sk_buff *skb) { - struct rtable *rt = (struct rtable*)skb->dst; + struct rtable *rt = skb->rtable; unsigned long now; int code; @@ -1548,7 +1548,7 @@ static void ipv4_link_failure(struct sk_buff *skb) icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0); - rt = (struct rtable *) skb->dst; + rt = skb->rtable; if (rt) dst_set_expires(&rt->u.dst, 0); } @@ -1708,7 +1708,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr, in_dev_put(in_dev); hash = rt_hash(daddr, saddr, dev->ifindex); - return rt_intern_hash(hash, rth, (struct rtable**) &skb->dst); + return rt_intern_hash(hash, rth, &skb->rtable); e_nobufs: in_dev_put(in_dev); @@ -1869,7 +1869,7 @@ static inline int ip_mkroute_input(struct sk_buff *skb, /* put it into the cache */ hash = rt_hash(daddr, saddr, fl->iif); - return rt_intern_hash(hash, rth, (struct rtable**)&skb->dst); + return rt_intern_hash(hash, rth, &skb->rtable); } /* @@ -2025,7 +2025,7 @@ local_input: } rth->rt_type = res.type; hash = rt_hash(daddr, saddr, fl.iif); - err = rt_intern_hash(hash, rth, (struct rtable**)&skb->dst); + err = rt_intern_hash(hash, rth, &skb->rtable); goto done; no_route: @@ -2091,7 +2091,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr, dst_use(&rth->u.dst, jiffies); RT_CACHE_STAT_INC(in_hit); rcu_read_unlock(); - skb->dst = (struct dst_entry*)rth; + skb->rtable = rth; return 0; } RT_CACHE_STAT_INC(in_hlist_search); @@ -2598,7 +2598,7 @@ int ip_route_output_key(struct net *net, struct rtable **rp, struct flowi *flp) static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event, int nowait, unsigned int flags) { - struct rtable *rt = (struct rtable*)skb->dst; + struct rtable *rt = skb->rtable; struct rtmsg *r; struct nlmsghdr *nlh; long expires; @@ -2742,7 +2742,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void err = ip_route_input(skb, dst, src, rtm->rtm_tos, dev); local_bh_enable(); - rt = (struct rtable*) skb->dst; + rt = skb->rtable; if (err == 0 && rt->u.dst.error) err = -rt->u.dst.error; } else { @@ -2762,7 +2762,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void if (err) goto errout_free; - skb->dst = &rt->u.dst; + skb->rtable = rt; if (rtm->rtm_flags & RTM_F_NOTIFY) rt->rt_flags |= RTCF_NOTIFY; |