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Re: [Qemu-devel] [PATCH 9/9] tpm_tis: remove instance_finalize callback


From: Peter Crosthwaite
Subject: Re: [Qemu-devel] [PATCH 9/9] tpm_tis: remove instance_finalize callback
Date: Thu, 31 Jul 2014 23:02:23 +1000

On Thu, Jul 31, 2014 at 10:05 PM, Paolo Bonzini <address@hidden> wrote:
> Il 31/07/2014 14:00, Peter Crosthwaite ha scritto:
>> On Wed, Jul 30, 2014 at 8:27 PM, Paolo Bonzini <address@hidden> wrote:
>>> It is never used, since ISA device are not hot-unpluggable.
>>>
>>
>> Is it not good design practice though for the uninit to be correctly
>> implemented regardless of whether there is current-day usage? This
>> seems like the kind of patch that would get reverted if anyone finds a
>> reason to un-init a QOM object beyond existing hotplug use-cases.
>
> But even then, it should be an unrealize method, not an
> instance_finalize, shouldn't it?
>

True. I guess this makes your patch half the solution.

Reviewed-by: Peter Crosthwaite <address@hidden>

> Paolo
>
>> Regards,
>> Peter
>>
>>> Signed-off-by: Paolo Bonzini <address@hidden>
>>> ---
>>>  hw/tpm/tpm_tis.c | 8 --------
>>>  1 file changed, 8 deletions(-)
>>>
>>> diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
>>> index d398c16..82747ee 100644
>>> --- a/hw/tpm/tpm_tis.c
>>> +++ b/hw/tpm/tpm_tis.c
>>> @@ -896,13 +896,6 @@ static void tpm_tis_initfn(Object *obj)
>>>                                  &s->mmio);
>>>  }
>>>
>>> -static void tpm_tis_uninitfn(Object *obj)
>>> -{
>>> -    TPMState *s = TPM(obj);
>>> -
>>> -    memory_region_del_subregion(get_system_memory(), &s->mmio);
>>> -}
>>> -
>>>  static void tpm_tis_class_init(ObjectClass *klass, void *data)
>>>  {
>>>      DeviceClass *dc = DEVICE_CLASS(klass);
>>> @@ -918,7 +911,6 @@ static const TypeInfo tpm_tis_info = {
>>>      .parent = TYPE_ISA_DEVICE,
>>>      .instance_size = sizeof(TPMState),
>>>      .instance_init = tpm_tis_initfn,
>>> -    .instance_finalize = tpm_tis_uninitfn,
>>>      .class_init  = tpm_tis_class_init,
>>>  };
>>>
>>> --
>>> 1.8.3.1
>>>
>>>
>
>



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