From: Ian Abbott <abbotti@mev.co.uk>
Date: Thu, 7 Jul 2011 01:18:49 +0000 (+0000)
Subject: lib/checksum.c: optimize do_csum a bit
X-Git-Tag: v3.1-rc1~316^2~204
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be0e1e788b0973147b6b83cc940676cc26009eb7;p=pandora-kernel.git

lib/checksum.c: optimize do_csum a bit

Reduce the number of variables modified by the loop in do_csum() by 1,
which seems like a good idea.  On Nios II (a RISC CPU with 3-operand
instruction set) it reduces the loop from 7 to 6 instructions, including
the conditional branch.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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