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| author | Michel Machado <michel@digirati.com.br> | 2012-06-12 10:16:35 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-12 18:51:09 -0700 |
| commit | 95603e2293de556de7e82221649bfd7fd98b64a3 (patch) | |
| tree | d90e7570b072f62ee4fefa619b93ec771bfd9f95 /net/ipv6/ip6_output.c | |
| parent | de063b7040dcd9fbc9a1847fa44f0af13e19d6de (diff) | |
| download | lwn-95603e2293de556de7e82221649bfd7fd98b64a3.tar.gz lwn-95603e2293de556de7e82221649bfd7fd98b64a3.zip | |
net-next: add dev_loopback_xmit() to avoid duplicate code
Add dev_loopback_xmit() in order to deduplicate functions
ip_dev_loopback_xmit() (in net/ipv4/ip_output.c) and
ip6_dev_loopback_xmit() (in net/ipv6/ip6_output.c).
I was about to reinvent the wheel when I noticed that
ip_dev_loopback_xmit() and ip6_dev_loopback_xmit() do exactly what I
need and are not IP-only functions, but they were not available to reuse
elsewhere.
ip6_dev_loopback_xmit() does not have line "skb_dst_force(skb);", but I
understand that this is harmless, and should be in dev_loopback_xmit().
Signed-off-by: Michel Machado <michel@digirati.com.br>
CC: "David S. Miller" <davem@davemloft.net>
CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
CC: James Morris <jmorris@namei.org>
CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
CC: Patrick McHardy <kaber@trash.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jpirko@redhat.com>
CC: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_output.c')
| -rw-r--r-- | net/ipv6/ip6_output.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 62fcf3e48aca..ee1bb450bfe4 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -83,19 +83,6 @@ int ip6_local_out(struct sk_buff *skb) } EXPORT_SYMBOL_GPL(ip6_local_out); -/* dev_loopback_xmit for use with netfilter. */ -static int ip6_dev_loopback_xmit(struct sk_buff *newskb) -{ - skb_reset_mac_header(newskb); - __skb_pull(newskb, skb_network_offset(newskb)); - newskb->pkt_type = PACKET_LOOPBACK; - newskb->ip_summed = CHECKSUM_UNNECESSARY; - WARN_ON(!skb_dst(newskb)); - - netif_rx_ni(newskb); - return 0; -} - static int ip6_finish_output2(struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); @@ -121,7 +108,7 @@ static int ip6_finish_output2(struct sk_buff *skb) if (newskb) NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING, newskb, NULL, newskb->dev, - ip6_dev_loopback_xmit); + dev_loopback_xmit); if (ipv6_hdr(skb)->hop_limit == 0) { IP6_INC_STATS(dev_net(dev), idev, |