linux-kernel - Re: [PATCHv1] firmware: intel_stratix10

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Date:   Wed, 23 Jan 2019 10:59:21 -0600
From:   Richard Gong <richard.gong@...ux.intel.com>
To:     Greg KH <gregkh@...uxfoundation.org>, Alan Tull <atull@...nel.org>
Cc:     Dinh Nguyen <dinguyen@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        todd.riffel@...el.com, Richard Gong <richard.gong@...el.com>
Subject: Re: [PATCHv1] firmware: intel_stratix10_service: add hardware
 dependency

Hi Greg,

On 1/23/19 10:43 AM, Greg KH wrote:
> On Wed, Jan 23, 2019 at 10:37:07AM -0600, Alan Tull wrote:
>> On Wed, Jan 23, 2019 at 10:00 AM Greg KH <gregkh@...uxfoundation.org> wrote:
>>
>> Hi Greg,
>>
>>>
>>> On Wed, Jan 23, 2019 at 09:47:56AM -0600, richard.gong@...ux.intel.com wrote:
>>>> From: Richard Gong <richard.gong@...el.com>
>>>>
>>>> Add a Kconfig dependency to ensure Intel Stratix10 service layer driver
>>>> can be built only on the platform that supports it.
>>>>
>>>> Signed-off-by: Richard Gong <richard.gong@...el.com>
>>>> ---
>>>>   drivers/firmware/Kconfig | 2 +-
>>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
>>>> index f754578..cac16c4 100644
>>>> --- a/drivers/firmware/Kconfig
>>>> +++ b/drivers/firmware/Kconfig
>>>> @@ -218,7 +218,7 @@ config FW_CFG_SYSFS_CMDLINE
>>>>
>>>>   config INTEL_STRATIX10_SERVICE
>>>>        tristate "Intel Stratix10 Service Layer"
>>>> -     depends on HAVE_ARM_SMCCC
>>>> +     depends on ARCH_STRATIX10 && HAVE_ARM_SMCCC
>>>
>>> That's lame, what about building for testing?
>>
>> Do you mean this instead?
>>
>> depends on (ARCH_STRATIX10 && HAVE_ARM_SMCCC) || COMPILE_TEST
> 
> Yes, that would be better, right?
> 
>>>
>>> And is this needed now, for 5.0-final, or can it wait for 5.1?
>>
>> This change will reduce kernel size for most arm64.  It can go into
>> whichever kernel.  We can resubmit allowing for COMPILE_TEST.
> 
> So it's not fixing a bug, but rather just allowing you to shrink an
> image?  If so, then 5.1 is good.
> 
> Please resubmit, after making sure it doesn't break the normal builds :)

Thanks for your review comments, I will resubmit the patch.
> 
> thanks,
> 
> greg k-h
>