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ipv4: Make rt->fl.iif tests lest obscure.

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When we test rt->fl.iif against zero, we're seeing if it's
an output or an input route.

Make that explicit with some helper functions.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2010-11-11 17:07:48 -08:00
parent ed1deb7021
commit c753796769
9 changed files with 42 additions and 20 deletions
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4
net/decnet/dn_route.c
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@@ -1181,7 +1181,7 @@ static int __dn_route_output_key(struct dst_entry **pprt, const struct flowi *fl
if ((flp->fld_dst == rt->fl.fld_dst) &&
(flp->fld_src == rt->fl.fld_src) &&
(flp->mark == rt->fl.mark) &&
(rt->fl.iif == 0) &&
dn_is_output_route(rt) &&
(rt->fl.oif == flp->oif)) {
dst_use(&rt->dst, jiffies);
rcu_read_unlock_bh();
@@ -1512,7 +1512,7 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
if (rtnl_put_cacheinfo(skb, &rt->dst, 0, 0, 0, expires,
rt->dst.error) < 0)
goto rtattr_failure;
if (rt->fl.iif)
if (dn_is_input_route(rt))
RTA_PUT(skb, RTA_IIF, sizeof(int), &rt->fl.iif);
nlh->nlmsg_len = skb_tail_pointer(skb) - b;