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Re: [Xen-devel] [PATCH v3 07/11] tmem: Make the uint64_t oid[3] a proper structure: tmem_oid



>>> On 31.08.15 at 18:14, <konrad.wilk@xxxxxxxxxx> wrote:
>> >> > --- a/xen/include/public/sysctl.h
>> >> > +++ b/xen/include/public/sysctl.h
>> >> > @@ -737,6 +737,12 @@ DEFINE_XEN_GUEST_HANDLE(xen_sysctl_psr_cat_op_t);
>> >> >  #define XEN_SYSCTL_TMEM_OP_RESTORE_PUT_PAGE       32
>> >> >  #define XEN_SYSCTL_TMEM_OP_RESTORE_FLUSH_PAGE     33
>> >> >  
>> >> > +struct tmem_oid {
>> >> > +    uint64_t oid[3];
>> >> > +};
>> >> > +typedef struct tmem_oid tmem_oid_t;
>> >> > +DEFINE_XEN_GUEST_HANDLE(tmem_oid_t);
>> >> 
>> >> I know this is going to be a boring mechanical thing, but I'd really
>> >> like to see this to be xen_tmem_oid (and alike), especially since
>> >> you intend to also use the type for th non-tools part of the
>> >> interface.
>> >
>> >This throws a wrench in the compat autogeneration tool.
>> >
>> >I keep on getting:
>> >
>> >Fields of 'compat_xen_tmem_oid' not found in 'compat/tmem.h'
>> >and it failing to generate compat/.xlat/tmem.h file. Sticking an prefix of
>> >xen to the 'common/compat/tmem_xen.c' or just leaving it as is did not help:
>> 
>> Did you perhaps forget to adjust include/xlat.lst? I'm certain adding a 
> prefix won't
> 
> Yes. And ran 'make distclean' before compiling.
> 
>> break everything, albeit iirc there's not going to be a compat_xen_tmem_oid, 
> but
>> the xen_ prefix in such cases gets replaced by compat_.
> 
> Which is part of the problem - in 'xen_tmem_oid' the 'xen' parts got 
> replaced.
> And the 'compat_tmem_oid' gets generated but the tool is trying to find
> 'compat_xen_tmem_oid' (at least that is the error) and can't find it now.

Perhaps that's because the structure definition is public/sysctl.h
(note how the error message refers to public/tmem.h)? Since you
move it in a later patch, could you put it into public/tmem.h right
away?

Jan


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