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Re: [PATCH v3 4/5] xen/bitops: Implement hweight64() in terms of hweight{l,32}()

To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
From: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Date: Thu, 5 Sep 2024 16:09:47 -0700 (PDT)
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
Delivery-date: Thu, 05 Sep 2024 23:09:59 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Wed, 4 Sep 2024, Andrew Cooper wrote:
> ... and drop generic_hweight{32,64}().
> 
> This is identical on all architectures except ARM32.  Add one extra SELF_TEST
> to check that hweight64() works when the input is split in half.
> 
> No functional change.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

References:
- [PATCH v3 0/5] xen/bitops: hweight() cleanup/improvements
  - From: Andrew Cooper
- [PATCH v3 4/5] xen/bitops: Implement hweight64() in terms of hweight{l,32}()
  - From: Andrew Cooper

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