On 05/04/2022 14:40, Robin Murphy wrote:
> Even if an IOMMU might be present for some PCI segment in the system,
> that doesn't necessarily mean it provides translation for the device
> we care about. It appears that what we care about here is specifically
> whether DMA mapping ops involve any IOMMU overhead or not, so check for
> translation actually being active for our device.
>
> Signed-off-by: Robin Murphy <[email protected]>
Acked-by: Edward Cree <[email protected]>
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