From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: net: fec: fix regression on i.MX28 introduced by rx_copybreak
 support
Date: Thu, 30 Oct 2014 12:17:10 -0400 (EDT)
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=46rom: Lothar Wa=DFmann <LW@KARO-electronics.de>
Date: Thu, 30 Oct 2014 07:51:04 +0100

>> Also, I don't thnk your DIV_ROUND_UP() eliminate for the loop
>> in swap_buffer() is valid.  The whole point is that the current
>> code handles buffers which have a length which is not a multiple
>> of 4 properly, after your change it will no longer do so.
>>
> Do you really think so?

Yes, because you're rounding down so you'll miss the final
partial word (if any).