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net: ipv6: Refactor in rt6_age_examine_exception

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The logic in rt6_age_examine_exception is confusing. The commit is
to refactor the code.

Signed-off-by: Xu Jia <xujia39@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xu Jia 2021-04-01 11:22:23 +08:00 committed by David S. Miller
parent f20a46c304
commit b7a320c3a1
1 changed files with 1 additions and 4 deletions
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5
net/ipv6/route.c
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@ -2085,13 +2085,10 @@ static void rt6_age_examine_exception(struct rt6_exception_bucket *bucket,
if (rt->rt6i_flags & RTF_GATEWAY) {
struct neighbour *neigh;
__u8 neigh_flags = 0;
neigh = __ipv6_neigh_lookup_noref(rt->dst.dev, &rt->rt6i_gateway);
if (neigh)
neigh_flags = neigh->flags;
if (!(neigh_flags & NTF_ROUTER)) {
if (!(neigh && (neigh->flags & NTF_ROUTER))) {
RT6_TRACE("purging route %p via non-router but gateway\n",
rt);
rt6_remove_exception(bucket, rt6_ex);