Re: [RFC: PATCH 1/5] Remove CoInstaller from INF

[Paul Durrant <xadimgnik@xxxxxxxxx>]

On 31/08/2023 08:49, Owen Smith wrote:
> Windows 11 22H2 WHQL requires INF file pass "InfVerif /k", which highlights
> several issues
> - PnpLockdown=1 needs to be specified
> - CoInstallers are no longer allowed
>
> The CoInstaller has several functions that will need alternative solutions:
> - The AllowUpdate mechanism is no longer possible
> - The safety checks that ensure interface versionings remain compatible
> - The writing of 'current' network identifiers to the registry in order to
>    copy network settings.
>
> Interface safety checks need to be handled by changes to child device bindings,
> and assuming upgrade via emulated devices is safe. The unplug key is cleared
> in the INF to revert to emulated NICs on the next boot, incase the current child
> drivers rely on an interface that is no longer present (note: in this case,
> child drivers will need updating).
>
> Signed-off-by: Owen Smith <owen.smith@xxxxxxxxx>
The allow update functionality was supposed to deal with the case of 
updating a driver than would not necessarily cause a reboot. IOW we'd 
update a parent and no child that could use that parent is present in 
the system. If we can't do that safety check any more then I think we 
have to force a reboot as well as clearing the unplug key, don't we?
  Paul