[PATCH v3 1/2] selftests/powerpc: Add MSR bits

Christophe Leroy christophe.leroy at c-s.fr
Tue Jan 8 22:14:21 AEDT 2019


Le 08/01/2019 à 12:11, Breno Leitao a écrit :
> Hi Michael,
> 
> On 1/8/19 7:20 AM, Michael Ellerman wrote:
>> Breno Leitao <leitao at debian.org> writes:
>>
>>> hi Christophe,
>>>
>>> On 1/3/19 3:19 PM, LEROY Christophe wrote:
>>>> Breno Leitao <leitao at debian.org> a écrit :
>>>>
>>>>> This patch simply adds definitions for the MSR bits and some macros to
>>>>> test for MSR TM bits.
>>>>>
>>>>> This was copied from arch/powerpc/include/asm/reg.h generic MSR part.
>>>>
>>>> Can't we find a way to avoid duplicating such defines ?
>>>
>>> I think there are three possible ways, but none of them respect the premises
>>> we are used too. These are the possible ways I can think of:
>>>
>>> 1) Including arch/powerpc/include/asm as part of the selftest compilation
>>> process.
>>>     Problem: This might break the selftest independence of the kbuild system.
>>>
>>> 2) Generate a temporary header file inside selftests/include which contains
>>> these macros at compilation time.
>>>     Problem: The problem as above.
>>>
>>> 3) Define MSR fields at userspace headers (/usr/include).
>>>     Problem: I am not sure userspace should have MSR bits information.
>>>
>>> Do you suggest me to investigate any other way?
>>
>> In this case I think we can probably just copy the few #defines we need.
> 
> Cool. That is the very same thing as suggested by Christophe. I sent the v4
> yesterday, with this change already.

It didn't get through. Latest is still v3 it seems, look 
https://patchwork.ozlabs.org/project/linuxppc-dev/list/?submitter=71262

Christophe

> 
> Thanks for looking at it.
> 


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