From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] ipv4: avoid undefined behavior in do_ip_setsockopt()
Date: Sun, 11 Nov 2012 17:02:47 -0500 (EST)
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This code is a fast bit test on purpose.  You're making the
code slower.

I'm not applying this patch.