Re: [PATCH] i2c: core: helper function to detect slave mode

From: Vladimir Zapolskiy
Date: Fri Jan 06 2017 - 18:43:41 EST


On 01/07/2017 12:45 AM, Andy Shevchenko wrote:
> On Fri, Jan 6, 2017 at 11:46 PM, Vladimir Zapolskiy <vz@xxxxxxxxx> wrote:
>>> + if (IS_BUILTIN(CONFIG_OF) && dev->of_node) {
>>
>> IS_BUILTIN(CONFIG_OF) looks excessive, check for non-NULL dev->of_node
>> should be sufficient.
>
> Sorry, but you missed the point.
> This will enable compile time optimization and basically be collapsed to no-op.
>

Good point, do you plan to add more "IS_BUILTIN(CONFIG_OF)" checks all
over the code to reduce the size of the built image?

>>> + }
>>> + } else if (IS_BUILTIN(CONFIG_ACPI) && ACPI_HANDLE(dev)) {
>>> + dev_dbg(dev, "ACPI slave is not supported yet\n");
>>> + }
>>
>> If so, then it might be better to drop else-if stub for now.
>
> Please, don't.
>

Why do you ask for this stub to be added?

--
With best wishes,
Vladimir