Re: [PATCH v8 1/2] s390/setup: diag 318: refactor struct

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On 6/22/20 10:56 AM, Christian Borntraeger wrote:
> 
> On 19.06.20 00:22, Collin Walling wrote:
>> The diag 318 struct introduced in include/asm/diag.h can be
>> reused in KVM, so let's condense the version code fields in the
>> diag318_info struct for easier usage and simplify it until we
>> can determine how the data should be formatted.
>>
>> Signed-off-by: Collin Walling <walling@xxxxxxxxxxxxx>
>> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
>> Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
>> Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>
>> Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> 
> Series looks good to me. Can you respin the 2nd patch regarding the VSIE things
> and I can then apply it.
> 
> 

Will do. Thanks.

>> ---
>>  arch/s390/include/asm/diag.h | 6 ++----
>>  arch/s390/kernel/setup.c     | 3 +--
>>  2 files changed, 3 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
>> index 0036eab14391..ca8f85b53a90 100644
>> --- a/arch/s390/include/asm/diag.h
>> +++ b/arch/s390/include/asm/diag.h
>> @@ -298,10 +298,8 @@ struct diag26c_mac_resp {
>>  union diag318_info {
>>  	unsigned long val;
>>  	struct {
>> -		unsigned int cpnc : 8;
>> -		unsigned int cpvc_linux : 24;
>> -		unsigned char cpvc_distro[3];
>> -		unsigned char zero;
>> +		unsigned long cpnc : 8;
>> +		unsigned long cpvc : 56;
>>  	};
>>  };
>>  
>> diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
>> index 5853c9872dfe..878cacfc9c3e 100644
>> --- a/arch/s390/kernel/setup.c
>> +++ b/arch/s390/kernel/setup.c
>> @@ -1021,8 +1021,7 @@ static void __init setup_control_program_code(void)
>>  {
>>  	union diag318_info diag318_info = {
>>  		.cpnc = CPNC_LINUX,
>> -		.cpvc_linux = 0,
>> -		.cpvc_distro = {0},
>> +		.cpvc = 0,
>>  	};
>>  
>>  	if (!sclp.has_diag318)
>>


-- 
Regards,
Collin

Stay safe and stay healthy



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