Re: [Xen-devel] [PATCH] xen: tmem: rmove useless parameters

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 20.11.13 at 10:22, Bob Liu <bob.liu@xxxxxxxxxx> wrote:
> On 11/20/2013 05:10 PM, Jan Beulich wrote:
>>>>> On 20.11.13 at 09:52, Bob Liu <lliubbo@xxxxxxxxx> wrote:
>>> @@ -100,9 +100,6 @@ static inline int xen_tmem_op(u32 tmem_cmd, u32 
> tmem_pool, struct tmem_oid oid,
>>>     op.u.gen.oid[1] = oid.oid[1];
>>>     op.u.gen.oid[2] = oid.oid[2];
>>>     op.u.gen.index = index;
>>> -   op.u.gen.tmem_offset = tmem_offset;
>>> -   op.u.gen.pfn_offset = pfn_offset;
>>> -   op.u.gen.len = len;
>> 
>> But you can't leave these fields uninitialized.
>> 
> 
> Oh, yes.
> And I should remove those members totally from struct tmem_op {}

That's an established ABI - you can't just remove members there.

Jan


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