From a9a0c51af4e7c825c014b40694571456a75ebbc4 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@dreamhost.com>
Date: Wed, 15 Feb 2012 07:43:54 -0600
Subject: [PATCH] libceph: separate CRC calculation from byte swapping

Calculate CRC in a separate step from rearranging the byte order
of the result, to improve clarity and readability.

Use offsetof() to determine the number of bytes to include in the
CRC calculation.

In read_partial_message(), switch which value gets byte-swapped,
since the just-computed CRC is already likely to be in a register.

Signed-off-by: Alex Elder <elder@dreamhost.com>
Signed-off-by: Sage Weil <sage@newdream.net>
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