Re: [PATCH] Bluetooth: btrsi: rework dependencies

From: Marcel Holtmann
Date: Thu Mar 15 2018 - 12:04:03 EST


Hi Arnd,

>>> diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
>>> index 03cfc1b20c4a..9e8d22712ff3 100644
>>> --- a/drivers/bluetooth/Makefile
>>> +++ b/drivers/bluetooth/Makefile
>>> @@ -28,7 +28,7 @@ obj-$(CONFIG_BT_QCA) += btqca.o
>>>
>>> obj-$(CONFIG_BT_HCIUART_NOKIA) += hci_nokia.o
>>>
>>> -obj-$(CONFIG_BT_HCIRSI) += btrsi.o
>>> +obj-$(CONFIG_BT_HCIRSI_MODULE) += btrsi.o
>>
>> do we need this new option? I have avoided these kind of complex things multi config entries. Can we not just select the RSI_91X?
>>
>
> I couldn't come up with a simpler way to do this.
> Selecting RSI_91X is not possible unless we make the BT
> driver 'depend on WLAN_VENDOR_RSI && MAC80211',
> which is even more backwards.
>
> The problem here is that it's actually a reverse dependency:
> the wlan driver calls into the bt driver.
>
> What we could do is to make BT_HCIRSI a silent symbol
> and have that selected by RSI_COEX, which can then
> be user-visible. With that, the Kconfig structure would follow
> what the code does.

that sounds a bit better to me. If the RSI driver maintainers donât like that, then they should re-architect the code to make this more dynamic and flexible.

Regards

Marcel