From: Eric Dumazet <dada1@cosmosbay.com>
Date: Thu, 9 Oct 2008 21:51:27 +0000 (-0700)
Subject: udp: complete port availability checking
X-Git-Tag: v2.6.28-rc1~717^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f24d43c07e208372aa3d3bff419afbf43ba87698;p=pandora-kernel.git

udp: complete port availability checking

While looking at UDP port randomization, I noticed it
was litle bit pessimistic, not looking at type of sockets
(IPV6/IPV4) and not looking at bound addresses if any.

We should perform same tests than when binding to a
specific port.

This permits a cleanup of udp_lib_get_port()

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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