On 03/09/2015 02:53 PM, Jean Delvare wrote:
> Le Monday 09 March 2015 à 10:56 +0100, Marc Kleine-Budde a écrit :
>> On 03/09/2015 10:52 AM, Michal Simek wrote:
>>> On 03/09/2015 10:13 AM, Marc Kleine-Budde wrote:
>>>> On 03/09/2015 09:58 AM, Michal Simek wrote:
>>>>> On 03/09/2015 09:50 AM, Marc Kleine-Budde wrote:
>>>>>> On 03/09/2015 09:48 AM, Michal Simek wrote:
>>>>>>> Remove Kconfig dependency and enable driver for
>>>>>>> all ARCHs.
>>>>>>>
>>>>>>> Signed-off-by: Michal Simek <[email protected]>
>>>>>>> Acked-by: Sören Brinkmann <[email protected]>
>>>>>>> ---
>>>>>>>
>>>>>>> Test for all archs done by Kbuild test robot without any problem.
>>>>>>> ---
>>>>>>>  drivers/net/can/Kconfig | 1 -
>>>>>>>  1 file changed, 1 deletion(-)
>>>>>>>
>>>>>>> diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
>>>>>>> index 98d73aab52fe..f690c3fb3088 100644
>>>>>>> --- a/drivers/net/can/Kconfig
>>>>>>> +++ b/drivers/net/can/Kconfig
>>>>>>> @@ -131,7 +131,6 @@ config CAN_RCAR
>>>>>>>  
>>>>>>>  config CAN_XILINXCAN
>>>>>>>         tristate "Xilinx CAN"
>>>>>>> -       depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST
>>>>>>
>>>>>> I think that's what COMPILE_TEST ist for?
>>>>>
>>>>> For compilation yes but not for enabling. Currently this driver
>>>>> can be also used on ARM64 that's why people suggesting directly
>>>>> to remove dependency on arch and then COMPILE_TEST can be removed
>>>>> too.
>>>>
>>>> In the past (May 2014) I had people complaining that certain ARM SoC
>>>> specific drivers are enabled on ARM in general, not just on that SoC. As
>>>> I'm not following arm64 in detail, has the notion of using depends on
>>>> ARCH changes since then?
>>>>
>>>>> Or do you want me to change description to mention that this is for
>>>>> ARM64 enabling?
>>>>
>>>> Given this is consensus, a remark to ARM64 would be appreciated. :)
>>>
>>> David has applied this patch which is in general just the same as this one.
>>>
>>> (linux-next) Remove architecture dependency
>>> 28811a8c00fe0d899b8a544421f3b4947425d5e8
>>>
>>> Mark Brown has suggested to do so for spi and don't check architecture at
>>> all.
>>> I have also sent similar patch for watchdog driver too.
>>>
>>> I think it is up to you if you want to add ARM64 to Kconfig or just remove
>>> that arch dependencies.
>>> To be honest my goal is to enable this driver for ARM64.
>>> Please tell me what way you prefer.
>>
>> I like the idea of removing the depends on ARCH completely. Jean, what
>> do you think?
> 
> Removing the dependency completely will let the option be displayed on
> systems where the driver is useless. I am in favor of having hardware
> dependencies on as many drivers as possible to avoid bothering the user
> with irrelevant questions. The list of Kconfig entries has grown a lot
> over time!
> 
> If the current dependency is too strict then I would suggest to extend
> it or to make it broader (depends on ARM || ARM64 || COMPILE_TEST would
> be acceptable IMHO.) Dropping it completely only makes sense if the part
> is used on so many systems that the dependency becomes too long or is a
> pain to maintain.

Sounds reasonable. Michael, make it so.

Marc
-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
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