linux-kernel - Re: [PATCH 2/4] misc: ds1682: Add OF device ID table

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Message-ID: <ae484027-4035-db38-39de-d906d5f99e20@osg.samsung.com>
Date:   Tue, 14 Mar 2017 21:38:37 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 2/4] misc: ds1682: Add OF device ID table

Hello Arnd,

Thanks a lot for your feedback.

On 03/14/2017 05:46 PM, Arnd Bergmann wrote:
> On Tue, Mar 14, 2017 at 4:16 PM, Javier Martinez Canillas
> <javier@....samsung.com> wrote:
> 
>> +static const struct of_device_id ds1682_of_match[] = {
>> +       { .compatible = "dallas,ds1682", },
>> +       {}
>> +};
>> +MODULE_DEVICE_TABLE(of, ds1682_of_match);
>> +
>>  static struct i2c_driver ds1682_driver = {
>>         .driver = {
>>                 .name = "ds1682",
>> +               .of_match_table = of_match_ptr(ds1682_of_match),
>>         },
>>         .probe = ds1682_probe,
>>         .remove = ds1682_remove,
> 
> This will cause a warning if CONFIG_OF is disabled, since ds1682_of_match
> becomes unused in this case. Please remove the of_match_ptr() around
> the reference to ds1682_of_match.
>

Right, I tested it when CONFIG_OF is disabled with gcc (GCC) 6.3.1 20161221
and I didn't see any warning. But you are right and I'll re-spin the series
without using the macro.

>     Arnd
> 

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America