Re: [PATCH v2 1/4] x86/mm: no-one passes a NULL domain to init_xen_l4_slots()

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 05/05/2020 07:31, Jan Beulich wrote:
> [CAUTION - EXTERNAL EMAIL] DO NOT reply, click links, or open attachments 
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>
> Andrew,
>
> On 21.04.2020 18:40, Roger Pau Monné wrote:
>> On Tue, Apr 21, 2020 at 11:11:03AM +0200, Jan Beulich wrote:
>>> Drop the NULL checks - they've been introduced by commit 8d7b633ada
>>> ("x86/mm: Consolidate all Xen L4 slot writing into
>>> init_xen_l4_slots()") for no apparent reason.
>>>
>>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>> Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> you weren't entirely happy with the change because of the
> possible (or, as you state, necessary) need to undo this. I
> still think in the current shape the NULL checks are
> pointless and hence would better go away. Re-introducing them
> (adjusted to whatever shape the function may be in by that
> time) is not that big of a problem. May I ask that you
> explicitly clarify whether you actively NAK the patch, accept
> it going in with Roger's R-b, or would be willing to ack it?

I'm not going to nack it, because that would be petty, but I still don't
think it is a useful use of your time to be making more work for someone
in the future to revert.

However, if you wish to take the patch with Roger's R-b, then please fix
the stale commit message, seeing as this is v2 and I explained exactly
why it was done like that.

~Andrew