Re: [PATCH v2 5/6] gpiolib: switch the line state notifier to atomic

From: Kent Gibson
Date: Mon Oct 14 2024 - 05:25:03 EST


On Mon, Oct 14, 2024 at 09:48:16AM +0200, Bartosz Golaszewski wrote:
> On Mon, Oct 14, 2024 at 4:11 AM Kent Gibson <warthog618@xxxxxxxxx> wrote:
> > >
> > > + /*
> > > + * This is called from atomic context (with a spinlock taken by the
> > > + * atomic notifier chain). Any sleeping calls must be done outside of
> > > + * this function in process context of the dedicated workqueue.
> > > + *
> > > + * Let's gather as much info as possible from the descriptor and
> > > + * postpone just the call to pinctrl_gpio_can_use_line() until the work
> > > + * is executed.
> > > + */
> > > +
> >
> > Should be in patch 4? You aren't otherwise changing that function here.
> >
>
> Until this patch, the comment isn't really true, so I figured it makes
> more sense here.
>

So the validity of the comment depends on how the function is being called?
Then perhaps you should reword it as well.

Cheers,
Kent.