linux-kernel - Re: [PATCH] iio: cros_ec_accel_legacy: Mark expected switch fall-throughs

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Date:   Wed, 20 Feb 2019 19:48:29 -0600
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        Gwendal Grignou <gwendal@...omium.org>
Subject: Re: [PATCH] iio: cros_ec_accel_legacy: Mark expected switch
 fall-throughs



On 2/20/19 7:23 PM, Kees Cook wrote:
> On Wed, Feb 20, 2019 at 10:47 AM Gustavo A. R. Silva
> <gustavo@...eddedor.com> wrote:
>> Yeah. Actually, we can even take the switch and for out of the equation,
>> and the code can be rewritten as follows:
>>
>> ec_accel_channels[X].scan_index = Y;
>> ec_accel_channels[Y].scan_index = X;
>> ec_accel_channels[Z].scan_index = Z;
>>
>> if (state->sensor_num == MOTIONSENSE_LOC_LID)
>>         state->sign[X] = state->sign[Z] = -1;
>> else
>>         state->sign[X] = state->sign[Y] = state->sign[Z] = 1;
> 
> Actually, should be an unconditional "state->sign[Y] = 1", but

You're right. Team work!

> otherwise, yes. Can you send that patch?
> 

Sure thing.

> 
>>> Agreed, it's 'novel'.  Waiting for Gwendal or someone else to come
>>> back and check it wasn't meant to be doing something else.
>>
>> We've been waiting 5 months for Gwendal. :/
> 
> I've looked at this enough. I'm happy to Ack it, if that helps. :)
> 

Awesome. :)

Thanks
--
Gustavo