[PATCH] Revert "irqbypass: do not start cons/prod when failed connect"

[Shaokun Zhang]

Hi Marc,

On 2021/5/8 17:29, Marc Zyngier wrote:
> On Sat, 08 May 2021 08:11:52 +0100,
> Zhu Lingshan <lingshan.zhu at intel.com> wrote:
>>
>> This reverts commit a979a6aa009f3c99689432e0cdb5402a4463fb88.
>>
>> The reverted commit may cause VM freeze on arm64 platform.
>> Because on arm64 platform, stop a consumer will suspend the VM,
>> the VM will freeze without a start consumer
> 
> It also unconditionally calls del_consumer on the producer, which
> isn't exactly expected.
> 
>>
>> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> 
> Reported-by: Shaokun Zhang <zhangshaokun at hisilicon.com>

Thanks for the tag, it works with this patch, So:
Tested-by: Shaokun Zhang <zhangshaokun at hisilicon.com>

I shall invite you to have a drink for the quick debug.
Anyway, thank you again.

Shaokun

> Suggested-by: Marc Zyngier <maz at kernel.org>
> Acked-by: Marc Zyngier <maz at kernel.org>
> Fixes: a979a6aa009f ("irqbypass: do not start cons/prod when failed connect")
> Link: https://lore.kernel.org/r/3a2c66d6-6ca0-8478-d24b-61e8e3241b20@hisilicon.com
> Cc: stable at vger.kernel.org
> 
> Thanks,
> 
> 	M.
>