From: Tom Quetchenbach <redacted>
Date: Tue, 26 Aug 2008 11:11:52 -0700

This patch (applies to latest net-2.6) reduces the advertised value to
that requested by the user as long as setsockopt() is called before
connect() or accept(). This seems like the behavior that one would expect
as well as that which is documented.

 ...

Signed-off-by: Tom Quetchenbach <redacted>

I've applied this patch to net-next-2.6, thanks Tom.