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Re: [PATCH] xen/public: increment domctl interface version
- To: Jürgen Groß <jgross@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 14 Oct 2024 09:46:36 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 14 Oct 2024 07:46:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 14.10.2024 09:36, Jürgen Groß wrote:
> On 14.10.24 09:14, Jan Beulich wrote:
>> On 14.10.2024 09:06, Juergen Gross wrote:
>>> The recent addition of the XEN_DOMCTL_dt_overlay function was missing
>>> the related update of XEN_DOMCTL_INTERFACE_VERSION, as it has been the
>>> first interface change of the 4.20 release cycle.
>>>
>>> Fixes: 4c733873b5c2 ("xen/arm: Add XEN_DOMCTL_dt_overlay and device
>>> attachment to domains")
>>
>> I'm confused: That change (a) pre-dates the branching of 4.20 and (b)
>> bumped the version ...
>>
>>> --- a/xen/include/public/domctl.h
>>> +++ b/xen/include/public/domctl.h
>>> @@ -21,7 +21,7 @@
>>> #include "hvm/save.h"
>>> #include "memory.h"
>>>
>>> -#define XEN_DOMCTL_INTERFACE_VERSION 0x00000017
>>> +#define XEN_DOMCTL_INTERFACE_VERSION 0x00000018
>>
>> ... from 0x16 to 0x17. And for no apparent reason, as plain additions don't
>> require a bump. Did you maybe mean to reference a different commit?
>
> Oh, indeed. I wanted to reference d6e9a2aab39e.
>
> And regarding to "plain additions don't require a bump": 4c733873b5c2 did
> a plain addition and bumped the version.
Right, hence why I said "for no apparent reason".
Jan
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