[PATCH hyperv-next 5/6] arch, drivers: Add device struct bitfield to not bounce-buffer

[Christoph Hellwig]

On Wed, Apr 09, 2025 at 09:44:03AM -0700, Roman Kisel wrote:
> Do you feel this is shoehorned in `struct device`? I couldn't find an
> appropriate private (== opaque pointer) part in the structure to store
> that bit (`struct device_private` wouldn't fit the bill) and looked like
> adding it to the struct itself would do no harm. However, my read of the
> room is that folks see that as dubious :)

We'll need per-device information.  But it is much higher level than a
need bounce buffer flag.