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Re: [Qemu-devel] [PATCH 4/4] audio: use existing macros istead of hardco
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH 4/4] audio: use existing macros istead of hardcoded strings |
Date: |
Thu, 11 Oct 2018 12:05:41 +0100 |
On 11 October 2018 at 11:45, Philippe Mathieu-Daudé <address@hidden> wrote:
> On 11/10/2018 11:00, Mao Zhongyi wrote:
>> Cc: Jan Kiszka <address@hidden>
>> Cc: Peter Maydell <address@hidden>
>> Cc: Gerd Hoffmann <address@hidden>
>> To: address@hidden
>>
>> Signed-off-by: Mao Zhongyi <address@hidden>
>> ---
>> hw/arm/musicpal.c | 16 ++++++++--------
>> hw/audio/marvell_88w8618.c | 3 +--
>> include/hw/audio/wm8750.h | 1 +
>> 3 files changed, 10 insertions(+), 10 deletions(-)
>>
>> diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
>> index ac266f9253..6425f1d50f 100644
>> --- a/hw/arm/musicpal.c
>> +++ b/hw/arm/musicpal.c
>> @@ -406,7 +406,7 @@ static void mv88w8618_eth_realize(DeviceState *dev,
>> Error **errp)
>> }
>>
>> static const VMStateDescription mv88w8618_eth_vmsd = {
>> - .name = "mv88w8618_eth",
>> + .name = TYPE_MV88W8618_ETH,
>
> I understand TYPE_device name might changed, but once used,
> VMStateDescription shouldn't, else this would break migration.
> Thus I wouldn't recommend using TYPE_name in VMStateDescription.name.
>
> Since I'm not sure I cc'ed the migration maintainers.
Yes, that's the usual approach -- the vmstate struct names
aren't inherently the same as the QOM type names, and so
we keep them decoupled to avoid accidentally breaking migration.
thanks
-- PMM