Re: [kvm-unit-tests PATCH v3 5/9] s390x: Library resources for CSS tests

[Pierre Morel <pmorel@linux.ibm.com>]

On 2019-12-10 12:27, Thomas Huth wrote:
> On 10/12/2019 12.22, Pierre Morel wrote:
>>
>>
>> On 2019-12-10 11:28, Thomas Huth wrote:
>>> On 10/12/2019 11.07, Pierre Morel wrote:
>>>>
>>>>
>>>> On 2019-12-09 12:49, Thomas Huth wrote:
>>>>> On 06/12/2019 17.26, Pierre Morel wrote:
>>>>>> These are the include and library utilities for the css tests patch
>>>>>> series.
>>>>>>
>>>>>> Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
>>>>>> ---
>>>>>>     lib/s390x/css.h      | 259
>>>>>> +++++++++++++++++++++++++++++++++++++++++++
>>>>>>     lib/s390x/css_dump.c | 156 ++++++++++++++++++++++++++
>>>>>>     2 files changed, 415 insertions(+)
>>>>>>     create mode 100644 lib/s390x/css.h
>>>>>>     create mode 100644 lib/s390x/css_dump.c
>>>>>>
>>>>>> diff --git a/lib/s390x/css.h b/lib/s390x/css.h
>>>>>> new file mode 100644
>>>>>> index 0000000..6f19bb5
>>>>>> --- /dev/null
>>>>>> +++ b/lib/s390x/css.h
>>>>> [...]
>>>>>> +/* Debug functions */
>>>>>> +char *dump_pmcw_flags(uint16_t f);
>>>>>> +char *dump_scsw_flags(uint32_t f);
>>>>>> +#undef DEBUG
>>>>>> +#ifdef DEBUG
>>>>>> +void dump_scsw(struct scsw *);
>>>>>> +void dump_irb(struct irb *irbp);
>>>>>> +void dump_schib(struct schib *sch);
>>>>>> +struct ccw *dump_ccw(struct ccw *cp);
>>>>>> +#else
>>>>>> +static inline void dump_scsw(struct scsw *scsw) {}
>>>>>> +static inline void dump_irb(struct irb *irbp) {}
>>>>>> +static inline void dump_pmcw(struct pmcw *p) {}
>>>>>> +static inline void dump_schib(struct schib *sch) {}
>>>>>> +static inline void dump_orb(struct orb *op) {}
>>>>>> +static inline struct ccw *dump_ccw(struct ccw *cp)
>>>>>> +{
>>>>>> +    return NULL;
>>>>>> +}
>>>>>> +#endif
>>>>>
>>>>> I'd prefer to not have a "#undef DEBUG" (or "#define DEBUG") statement
>>>>
>>>> Anyway hawfull!
>>>>
>>>>> in the header here - it could trigger unexpected behavior with other
>>>>> files that also use a DEBUG macro.
>>>>>
>>>>> Could you please declare the prototypes here and move the "#else" part
>>>>> to the .c file instead? Thanks!
>>>>
>>>> What if I use a CSS_DEBUG here instead of a simple DEBUG definition?
>>>>
>>>> It can be enabled or not by defining CSS_ENABLED ahead of the
>>>> include...?
>>>
>>> Why does it have to be in the header and not in the .c file?
>>
>> I too mean in the C file. :)
>> above the include.
> 
> Well, as long as we don't have any generic "#undef DEBUG" statements in
> the header anymore, I think I don't care too much either way.

Yes, it was not good, shoudn't have survive my first tests.

Thanks
Pierre

> 
>   Thomas
> 

-- 
Pierre Morel
IBM Lab Boeblingen