linux-kernel - Re: net: fec: fix regression on i.MX28 introduced by rx

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Message-ID: <20141030075104.05e44b43@ipc1.ka-ro>
Date:	Thu, 30 Oct 2014 07:51:04 +0100
From:	Lothar Waßmann <LW@...O-electronics.de>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, rmk+kernel@....linux.org.uk,
	Frank.Li@...escale.com, fabio.estevam@...escale.com,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: net: fec: fix regression on i.MX28 introduced by rx_copybreak
 support

Hi,

David Miller wrote:
> From: Lothar Waßmann <LW@...O-electronics.de>
> Date: Tue, 28 Oct 2014 14:22:55 +0100
> 
> > Changes wrt. v1:
> > - added some cleanup patches
> > - simplify handling of 'quirks' flags as suggested by Russell King.
> > - remove DIV_ROUND_UP() from byte swapping loop as suggested by
> >   Eric Dumazet
> > 
> > Changes wrt. v2:
> > - rebased against next-20141028
> > - added some more cleanups in fec.h
> > - removed unused return value from swap_buffer()
> > - fixed messed swab32s() call in swap_buffer2()
> > - fixed messed up setup of fep->quirks
> > 
> 
> It is not appropriate to mix cleanups and bonafide bug fixes.
> 
> I want to see only bug fixes targetted at 'net'.  You can later
> submit the cleanups to 'net-next'.
> 
OK.

> 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?


Lothar Waßmann
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