From: David S. Miller <davem@davemloft.net>
Date: Thu, 17 Feb 2011 23:29:00 +0000 (-0800)
Subject: ipv4: Simplify output route creation call sequence.
X-Git-Tag: v2.6.39-rc1~468^2~334
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ada552746685d558d0a8e9e979921c75a41e469;p=pandora-kernel.git

ipv4: Simplify output route creation call sequence.

There's a lot of redundancy and unnecessary stack frames
in the output route creation path.

1) Make __mkroute_output() return error pointers.

2) Eliminate ip_mkroute_output() entirely, made possible by #1.

3) Call __mkroute_output() directly and handling the returning error
   pointers in ip_route_output_slow().

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