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Re: [PATCH] x86/asm: Introduce a tailcall pseduo-op


  • To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Wed, 5 Jul 2023 07:55:14 +0200
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  • Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Wed, 05 Jul 2023 05:55:43 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 04.07.2023 19:04, Andrew Cooper wrote:
> On 04/07/2023 3:29 pm, Jan Beulich wrote:
>> On 30.06.2023 17:20, Andrew Cooper wrote:
>>> It was previously noted that CALL/BUG is a weird combination, but there is
>>> good reason to use this pattern.
>>>
>>> Introduce an explicit tailcall macro make it clearer in context.
>>>
>>> No functional change.
>>>
>>> Reported-by: Jan Beulich <JBeulich@xxxxxxxx>
>> Did I? Must have been a long time back, as I don't think I remember us
>> talking about this.
> 
> This was discussed on multiple patch reviews, where I was introducing
> the pattern and you were complaining about the BUG and comment.  I can
> drop the tag if you'd prefer.

I'll leave that up to you. As said, it must have been quite some time back.

Jan



 


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