On 24-02-2026 14:58, Jani Nikula wrote:
On Tue, 24 Feb 2026, Ville Syrjälä <[email protected]> wrote:
Although I kinda doubt its actual usefulness to drive useful
fallback logic because often the restrictions might be a combination
of many things, and the kernel can only realistically report one of
those things.
Yeah, this is my main concern as well. The drivers will have to bail out
on the first issue they hit, whatever it is. The drivers may choose to
do the checks in different orders, resulting in different failure modes
for different drivers. And finally, accidentally making the order of the
checks part of the ABI contract is a scary prospect. Imagine user space
depending on certain checks happening first in order for the fallback
logic to work properly. Is it a kernel regression to change the order of
the checks then?
We are just reporting the 1st error that we see in the KMD and return
from there.
Thanks and Regards,
Arun R Murthy
-------------------
BR,
Jani.
