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Re: [PATCH v2 13/15] hw/qdev: Remove DEFINE_PROP_DMAADDR() and 'hw/qdev-


From: Markus Armbruster
Subject: Re: [PATCH v2 13/15] hw/qdev: Remove DEFINE_PROP_DMAADDR() and 'hw/qdev-dma.h'
Date: Tue, 26 Sep 2023 08:51:14 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux)

Paolo Bonzini <pbonzini@redhat.com> writes:

> On 9/25/23 13:03, Markus Armbruster wrote:
>> +David
>> Markus Armbruster <armbru@redhat.com> writes:
>> 
>>> Philippe Mathieu-Daudé <philmd@linaro.org> writes:
>>>
>>>> DEFINE_PROP_DMAADDR() is only used once. Since it doesn't
>>>> add much value, simply remove it, along with the header
>>>> defining it.
>>>>
>>>> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
>>>
>>> DEFINE_PROP_DMAADDR() lets you wrap a property around a dma_addr_t
>>> member without assuming anything about dma_addr_t.
>>>
>>> Whether that's worth avoiding I can't say.  Depends on how much the
>>> abstraction leaks in other ways.  Thoughts?
>
> I think it's okay to simplify things.  If anybody ever has a reason to make 
> dma_addr_t variable sized (probably a bad idea because many of its users are 
> compiled once only) they have one extra place to fix.  Tough luck. :)

Makes sense.

Reviewed-by: Markus Armbruster <armbru@redhat.com>




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