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(parent: abb00c9) | patch
syncookies: avoid unneeded tcp header flag double check
authorFlorian Westphal <fw@strlen.de>
Thu, 3 Jun 2010 00:43:44 +0000 (00:43 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sat, 5 Jun 2010 09:23:14 +0000 (02:23 -0700)
commit0654630db5b90ba07f5ec446177c9beb3d992f3a
tree6d05b82261ce76e6ecf00131c667292b62d16adftree | snapshot
parentabb00c9277e16ab0079b6d7fc77800d1f65c27cfcommit | diff
syncookies: avoid unneeded tcp header flag double check

caller: if (!th->rst && !th->syn && th->ack)
callee: if (!th->ack)

make the caller only check for !syn (common for 3whs), and move
the !rst / ack test to the callee.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/syncookies.c diff | blob | history
net/ipv4/tcp_ipv4.c diff | blob | history
net/ipv6/syncookies.c diff | blob | history
net/ipv6/tcp_ipv6.c diff | blob | history
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