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Re: [RFC KERNEL PATCH v2 1/3] xen/pci: Add xen_reset_device_state function


  • To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Tue, 5 Dec 2023 09:10:33 +0100
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  • Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "Hildebrand, Stewart" <Stewart.Hildebrand@xxxxxxx>, "Huang, Ray" <Ray.Huang@xxxxxxx>, "Chen, Jiqian" <Jiqian.Chen@xxxxxxx>
  • Delivery-date: Tue, 05 Dec 2023 08:10:48 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

(reducing Cc list)

On 04.12.2023 22:31, Stefano Stabellini wrote:
> On Mon, 3 Dec 2023, Chen, Jiqian wrote:
>>>> vpci device state when device is reset on dom0 side.
>>>>
>>>> And call that function in pcistub_init_device. Because when
>>>> we use "pci-assignable-add" to assign a passthrough device in
>>>> Xen, it will reset passthrough device and the vpci state will
>>>> out of date, and then device will fail to restore bar state.
>>>>
>>>> Signed-off-by: Jiqian Chen <Jiqian.Chen@xxxxxxx>
>>>> Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
>>>
>>> This Signed-off-by chain is incorrect.
>>>
>>> Documentation/process/submitting-patches.rst has a full chapter about
>>> S-O-B and the correct usage.
>> I am the author of this series of patches, and Huang Rui transported the v1 
>> to upstream. And now I transport v2. I am not aware that the SOB chain is 
>> incorrect.
>> Do you have any suggestions?
> 
> I think he means that your Signed-off-by should be the second one of the
> two as you are the one submitting the patch to the LKML

But that's not really correct either, as it then doesn't represent the
sequence of events. The first S-o-b normally is the (original) author's,
isn't it?

Jan



 


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