> I think what you're asking for is another layer of indirection
> like CONFIG_WBRF in addition to CONFIG_ACPI_WBRF.
>
> Producers would call functions like wbrf_supported_producer()
> where the source file is not guarded behind CONFIG_ACPI_WBRF,
> but instead by CONFIG_WBRF and locally use CONFIG_ACPI_WBRF within
> it. So a producer could look like this:
>
> bool wbrf_supported_producer(struct device *dev)
> {
> #ifdef CONFIG_ACPI_WBRF
> struct acpi_device *adev = ACPI_COMPANION(dev);
>
> if (adev)
> return check_acpi_wbrf(adev->handle,
> WBRF_REVISION,
> 1ULL << WBRF_RECORD);
> #endif
> return -ENODEV;
>
> }
> EXPORT_SYMBOL_GPL(wbrf_supported_producer);
>
> And then adding/removing could look something like this
>
> int wbrf_add_exclusion(struct device *dev,
> struct wbrf_ranges_in *in)
> {
> #ifdef CONFIG_ACPI_WBRF
> struct acpi_device *adev = ACPI_COMPANION(dev);
>
> if (adev)
> return wbrf_record(adev, WBRF_RECORD_ADD, in);
> #endif
> return -ENODEV;
> }
> EXPORT_SYMBOL_GPL(wbrf_add_exclusion);
>
> int wbrf_remove_exclusion(struct device *dev,
> struct wbrf_ranges_in *in)
> {
> #ifdef CONFIG_ACPI_WBRF
> struct acpi_device *adev = ACPI_COMPANION(dev);
>
> if (adev)
> return wbrf_record(adev, WBRF_RECORD_REMOVE, in);
> #endif
> return -ENODEV;
> }
> EXPORT_SYMBOL_GPL(wbrf_remove_exclusion);
Yes, this looks a lot better.
But what about notifications?
Andrew
