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

From: Andy Shevchenko
Date: Fri Jan 06 2017 - 17:46:21 EST


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.

>> + }
>> + } 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.

--
With Best Regards,
Andy Shevchenko