From: David S. Miller <davem@davemloft.net>
Date: Thu, 31 Mar 2011 11:52:14 +0000 (-0700)
Subject: net: Add helper flowi4_init_output().
X-Git-Tag: v3.0-rc1~377^2~558
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83229aa5e2c242163599266a686483e3b91ec07e;p=pandora-kernel.git

net: Add helper flowi4_init_output().

On-stack initialization via assignment of flow structures are
expensive because GCC emits a memset() to clear the entire
structure out no matter what.

Add a helper for ipv4 output flow key setup which we can use to avoid
the memset.

Signed-off-by: David S. Miller <davem@davemloft.net>
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