On Wed, Jul 14, 2021 at 12:15:25PM +0300, Andy Shevchenko wrote:

On Wed, Jul 14, 2021 at 9:55 AM Jiri Slaby [off-list ref] wrote:
...
Thanks, but I still think that blacklisting is better. All drivers I
have split (or participated in splitting) from 8250_pci have enabled
MSI for the entire subset they serve for.
...
Thanks. I also added Randy, who extended the list.

My own opinion is that a whitelist to enroll devices as they are tested
is the safer approach, for the reason that getting test coverage on many
of the older devices would be difficult.  For example, I see id's of HP
devices in the code that are probably 20 years old, and I doubt whether
there are operational examples inside HPE today.

That said, I can offer to test that a new patch to 8250_pci.c works on
the device I recently added.  Please cc me directly if that is helpful,
as I don't always read the mailing lists such as linux-serial promptly.

-- 
Randy Wright - Hewlett Packard Enterprise - rwright@hpe.com