Hi Jan,

On 26 September 2017 at 12:45, Jan Beulich <jbeul...@suse.com> wrote:
>>>> On 26.09.17 at 01:08, <bhupinder.tha...@linaro.org> wrote:
>> Yes, after including the __STRICT_ANSI__ check the headers.chk check
>> passes. But I had to include string header file (after suggestion from
>> Stefano) for fixing the headers++.chk.
>
> I'd like to have a more detailed explanation here - since the header
> passed the check without this prereq before, I'd prefer if the
> dependency was not added unconditionally.

The C header passed the check without the prereq addition. However,
for C++ headers since
__STRICT_ANSI__ is not defined, it tries to expand the
DEFINE_XEN_FLEX_RING macro
and looks for declarations for size_t, memcpy() etc. To satisfy that
requirement, string header
file had to included similar to what was done for pvcalls.

>
>> --- a/xen/include/public/io/console.h
>> +++ b/xen/include/public/io/console.h
>> @@ -40,7 +40,9 @@ struct xencons_interface {
>>      XENCONS_RING_IDX out_cons, out_prod;
>>  };
>>
>> +#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
>>  DEFINE_XEN_FLEX_RING(xencons);
>> +#endif
>
> At the first glance it also looks as if the scope of this conditional
> was too narrow.

Do you mean that xencons_interface should also be under ifdef?

Regards,
Bhupinder

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