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Re: [PATCH v3] public: add XEN_RING_NR_UNCONSUMED_*() macros to ring.h
- To: Juergen Gross <jgross@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 27 Jan 2022 09:02:53 +0100
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- Cc: Roger Pau Monne <roger.pau@xxxxxxxxxx>, Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx>, Simon Kuenzer <simon.kuenzer@xxxxxxxxx>, Paul Durrant <paul@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 27 Jan 2022 08:03:03 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 27.01.2022 07:30, Juergen Gross wrote:
> Today RING_HAS_UNCONSUMED_*() macros are returning the number of
> unconsumed requests or responses instead of a boolean as the name of
> the macros would imply.
>
> As this "feature" is already being used, rename the macros to
> XEN_RING_NR_UNCONSUMED_*() and define the RING_HAS_UNCONSUMED_*() macros
> by using the new XEN_RING_NR_UNCONSUMED_*() macros. In order to avoid
> future misuse let RING_HAS_UNCONSUMED_*() optionally really return a
> boolean (can be activated by defining XEN_RING_HAS_UNCONSUMED_IS_BOOL).
>
> Note that the known misuses need to be switched to the new
> XEN_RING_NR_UNCONSUMED_*() macros when using the RING_HAS_UNCONSUMED_*()
> variants returning a boolean value.
>
> Cc: Roger Pau Monne <roger.pau@xxxxxxxxxx>
> Cc: Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx>
> Cc: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
> Cc: Paul Durrant <paul@xxxxxxx>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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