linux-kernel - Re: [PATCH 2/3] mfd: cros_ec: Use the proper size when looking at the cros_ec

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Message-ID: <20140703063858.GD17665@lee--X1>
Date:	Thu, 3 Jul 2014 07:38:58 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Wolfram Sang <wsa@...-dreams.de>, Mark Brown <broonie@...nel.org>,
	Vincent Palatin <vpalatin@...omium.org>,
	Bill Richardson <wfrichar@...omium.org>,
	Randall Spangler <rspangler@...omium.org>,
	Simon Glass <sjg@...omium.org>,
	Andreas Färber <afaerber@...e.de>,
	Stephan van Schaik <stephan@...khronix.com>,
	Olof Johansson <olof@...om.net>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] mfd: cros_ec: Use the proper size when looking at
 the cros_ec_i2c result

On Wed, 02 Jul 2014, Doug Anderson wrote:
> On Wed, Jul 2, 2014 at 12:23 AM, Lee Jones <lee.jones@...aro.org> wrote:
> > On Fri, 27 Jun 2014, Doug Anderson wrote:
> >
> >> We know how many bytes the EC should be sending us (which is also the
> >> number of bytes transferred) and also how many bytes the EC actually
> >> wanted to send to us.  When computing the checksum and copying back
> >> data let's make sure we take the lesser of the two of those.  We'll
> >> also complain if the EC tried to send us too many bytes.  The EC
> >> sending us too few bytes is legit for when we send the EC an invalid
> >> command.
> >>
> >> This is based on similar code in cros_ec_spi.
> >>
> >> Signed-off-by: Doug Anderson <dianders@...omium.org>
> >> ---
> >>  drivers/mfd/cros_ec_i2c.c | 15 ++++++++++++---
> >>  1 file changed, 12 insertions(+), 3 deletions(-)
> >
> > Acked-by: Lee Jones <lee.jones@...aro.org>
> >
> > Is this patch orthogonal i.e. can it be applied without the other two
> > patches?
> 
> Yes.  If patch 3/3 had worked out then it would have required patch #1
> for proper functioning and patch #2 (this patch) to avoid an ugly
> error message in the log.  ...but patch #1 and this patch both can
> stand on their own and can be applied.

Very well, patch applied than.

Clause: There is a chance that this patch might not be seen in -next
for ~24-48hrs.  If it's not there by 72hrs, feel free to poke.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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