From: Timo Teräs <timo.teras@iki.fi>
Date: Sat, 20 Mar 2010 02:27:58 +0000 (+0000)
Subject: ip_gre: include route header_len in max_headroom calculation
X-Git-Tag: v2.6.34-rc3~84^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=243aad830e8a4cdda261626fbaeddde16b08d04a;p=pandora-kernel.git

ip_gre: include route header_len in max_headroom calculation

Taking route's header_len into account, and updating gre device
needed_headroom will give better hints on upper bound of required
headroom. This is useful if the gre traffic is xfrm'ed.

Signed-off-by: Timo Teras <timo.teras@iki.fi>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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