Re: [PATCH v2 08/11] gpiolib: emit a debug message when adding events to a full kfifo

[Bartosz Golaszewski <brgl@xxxxxxxx>]

śr., 4 gru 2019 o 23:28 Andy Shevchenko <andy.shevchenko@xxxxxxxxx> napisał(a):
>
> On Wed, Dec 4, 2019 at 6:04 PM Bartosz Golaszewski <brgl@xxxxxxxx> wrote:
> >
> > From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
> >
> > Currently if the line-event kfifo is full, we just silently drop any new
> > events. Add a ratelimited debug message so that we at least have some
> > trace in the kernel log of event overflow.
> >
>
> Hmm... I don't like prints in IRQ context (even threaded).
> Can we rather switch to trace points at some point?
>

This is something that will be very rare and unlikely - I don't see
how trace points will help here with all the boiler-plate.

Bart