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Re: [Xen-devel] [PATCH] VT-d: dma_pte_clear_one() can't fail anymore

  • To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
  • Date: Sun, 19 Jan 2020 03:17:59 +0000
  • Accept-language: en-US
  • Delivery-date: Sun, 19 Jan 2020 03:18:05 +0000
  • Dlp-product: dlpe-windows
  • Dlp-reaction: no-action
  • Dlp-version: 11.2.0.6
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
  • Thread-index: AQHVxVGPh7JcKH15FU6nQ+WYGd9dGKfxYv+Q
  • Thread-topic: [PATCH] VT-d: dma_pte_clear_one() can't fail anymore
> From: Jan Beulich <jbeulich@xxxxxxxx>
> Sent: Tuesday, January 7, 2020 7:56 PM
> 
> Hence it's pointless for it to return an error indicator, and it's even
> less useful for it to be __must_check. This is a result of commit
> e8afe1124cc1 ("iommu: elide flushing for higher order map/unmap
> operations") moving the TLB flushing out of the function.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
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