Re: [char-misc-next v2 7/7] watchdog: mei_wdt: re-register device on event

One Thousand Gnomes
2015-12-18T18:15:09Z

> > That breaks the existing behaviour of hot pluggable watchdog interfaces
> > and is different to just about any other device in the kernel. Today with
> > any desktop or server distribution you can already trivially arrange for
> > watchdog daemons to start at the point a watchdog is detected dynamically.
> >
>
> Ok, you have a point. Wonder if any distributions are doing that, though.
> Any idea ?

I don't know for any of the out of the box mainstream ones.

There is a second problem if you register the watchdog but don't actually
have it enabled. Consider the case where a user has the mei watchdog
disabled and a more advanced watchdog card plugged in - in that case the
naïvely implemented existing watchdog app may bind to the non-functional
watchdog, not the correct one.

Alan