From: Tom Herbert <therbert@google.com>
Date: Fri, 2 May 2014 23:28:03 +0000 (-0700)
Subject: net: Allow csum_add to be provided in arch
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~278^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07064c6e022ba8dc0c86ce12f7851a1de24e04fc;p=pandora-kernel.git

net: Allow csum_add to be provided in arch

csum_add is really nothing more then add-with-carry which
can be implemented efficiently in some architectures.
Allow architecture to define this protected by HAVE_ARCH_CSUM_ADD.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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