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inet: refactor inet[6]_lookup functions to take skb

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This is a preliminary step to allow fast socket lookup of SO_REUSEPORT
groups.  Doing so with a BPF filter will require access to the
skb in question.  This change plumbs the skb (and offset to payload
data) through the call stack to the listening socket lookup
implementations where it will be used in a following patch.

Signed-off-by: Craig Gallek <kraig@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Craig Gallek
2016-02-10 11:50:38 -05:00
committed by David S. Miller
parent d9b3fca273
commit a583636a83
12 changed files with 85 additions and 42 deletions
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2
net/dccp/ipv6.c
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@@ -668,7 +668,7 @@ static int dccp_v6_rcv(struct sk_buff *skb)
DCCP_SKB_CB(skb)->dccpd_ack_seq = dccp_hdr_ack_seq(skb);
lookup:
sk = __inet6_lookup_skb(&dccp_hashinfo, skb,
sk = __inet6_lookup_skb(&dccp_hashinfo, skb, __dccp_hdr_len(dh),
dh->dccph_sport, dh->dccph_dport,
inet6_iif(skb));
if (!sk) {