On Fri, Aug 21, 2020 at 05:19:52PM -0300, Jason Gunthorpe wrote:
On Fri, Aug 21, 2020 at 03:53:22PM -0400, Sasha Levin wrote:
On Fri, Aug 21, 2020 at 04:40:36PM -0300, Jason Gunthorpe wrote:
> On Fri, Aug 21, 2020 at 12:14:16PM -0400, Sasha Levin wrote:
> > From: Gal Pressman <galpress@xxxxxxxxxx>
> >
> > [ Upstream commit d4f9cb5c5b224dca3ff752c1bb854250bf114944 ]
> >
> > Add support for 0xefa1 devices.
> >
> > Link: https://lore.kernel.org/r/20200722140312.3651-5-galpress@xxxxxxxxxx
> > Reviewed-by: Shadi Ammouri <sammouri@xxxxxxxxxx>
> > Reviewed-by: Yossi Leybovich <sleybo@xxxxxxxxxx>
> > Signed-off-by: Gal Pressman <galpress@xxxxxxxxxx>
> > Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
> > drivers/infiniband/hw/efa/efa_main.c | 6 ++++--
> > 1 file changed, 4 insertions(+), 2 deletions(-)
>
> Wait, what? Why is this being autosel'd?
Stable trees try to pick up device enablement patches (such as patches
that add PCI IDs). I suppose that AUTOSEL get pretty eager to grab
those.
Is it so common that old drivers will work with new HW with just a
PCI_ID update?
I would have guessed that is the minority situation
So keep in mind that a lot of it is not brand new HW, but rather same
HW repackaged by a different vendor, or HW that received minor tweaks
but where the old driver still works.
I suppose it's more common in the USB ID world these days, so I guess
I'll give PCI IDs a closer look next time.
--
Thanks,
Sasha
