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| author | David S. Miller <davem@davemloft.net> | 2011-03-01 14:45:33 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-01 14:45:33 -0800 |
| commit | 69ead7afdf6028184f713a77376ee26f8aaafdcd (patch) | |
| tree | bd5cd86f9786daadfd5425f65106bd1c7383fcc7 /net | |
| parent | 80c0bc9e37adfc892af82cb6aa8cace79f8a96cb (diff) | |
| download | lwn-69ead7afdf6028184f713a77376ee26f8aaafdcd.tar.gz lwn-69ead7afdf6028184f713a77376ee26f8aaafdcd.zip | |
ipv6: Normalize arguments to ip6_dst_blackhole().
Return a dst pointer which is potentitally error encoded.
Don't pass original dst pointer by reference, pass a struct net
instead of a socket, and elide the flow argument since it is
unnecessary.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/ip6_output.c | 4 | ||||
| -rw-r--r-- | net/ipv6/route.c | 12 |
2 files changed, 7 insertions, 9 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index faf7b9d1d536..ac16f3b2a029 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1029,7 +1029,7 @@ struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi *fl, fl->flags |= FLOWI_FLAG_CAN_SLEEP; err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, 0); if (err == -EREMOTE) - err = ip6_dst_blackhole(sk, &dst, fl); + return ip6_dst_blackhole(sock_net(sk), dst); if (err) return ERR_PTR(err); } else { @@ -1074,7 +1074,7 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi *fl, fl->flags |= FLOWI_FLAG_CAN_SLEEP; err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, 0); if (err == -EREMOTE) - err = ip6_dst_blackhole(sk, &dst, fl); + return ip6_dst_blackhole(sock_net(sk), dst); if (err) return ERR_PTR(err); } else { diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 7e9443f835f9..cf6fdeabb6f2 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -870,11 +870,10 @@ struct dst_entry * ip6_route_output(struct net *net, struct sock *sk, EXPORT_SYMBOL(ip6_route_output); -int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl) +struct dst_entry *ip6_dst_blackhole(struct net *net, struct dst_entry *dst_orig) { - struct rt6_info *ort = (struct rt6_info *) *dstp; - struct rt6_info *rt = (struct rt6_info *) - dst_alloc(&ip6_dst_blackhole_ops, 1); + struct rt6_info *rt = dst_alloc(&ip6_dst_blackhole_ops, 1); + struct rt6_info *ort = (struct rt6_info *) dst_orig; struct dst_entry *new = NULL; if (rt) { @@ -905,9 +904,8 @@ int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl dst_free(new); } - dst_release(*dstp); - *dstp = new; - return new ? 0 : -ENOMEM; + dst_release(dst_orig); + return new ? new : ERR_PTR(-ENOMEM); } EXPORT_SYMBOL_GPL(ip6_dst_blackhole); |