Re: [PATCH net-next + leds v2 2/7] leds: add generic API for LEDs that can be controlled by hardware

From: Pavel Machek
Date: Wed Sep 09 2020 - 17:40:15 EST


Hi!

> > > Many an ethernet PHY (and other chips) supports various HW control modes
> > > for LEDs connected directly to them.
> >
> > I guess this should be
> >
> > "Many ethernet PHYs (and other chips) support various HW control modes
> > for LEDs connected directly to them."
> >
>
> I guess it is older English, used mainly in poetry, but I read it in
> works of contemporary fiction as well. As far as I could find, it is still
> actually gramatically correct.
> https://idioms.thefreedictionary.com/many+an
> https://en.wiktionary.org/wiki/many_a
> But I will change it if you insist on it.

Okay, you got me.

> > > +Contact: Marek Behún <marek.behun@xxxxxx>
> > > + linux-leds@xxxxxxxxxxxxxxx
> > > +Description: (W) Set the HW control mode of this LED. The various available HW control modes
> > > + are specific per device to which the LED is connected to and per LED itself.
> > > + (R) Show the available HW control modes and the currently selected one.
> >
> > 80 columns :-) (and please fix that globally, at least at places where
> > it is easy, like comments).
> >
>
> Linux is at 100 columns now since commit bdc48fa11e46, commited by
> Linus. See
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/scripts/checkpatch.pl?h=v5.9-rc4&id=bdc48fa11e46f867ea4d75fa59ee87a7f48be144
> There was actually an article about this on Phoronix, I think.

It is not. Checkpatch no longer warns about it, but 80 columns is
still preffered, see Documentation/process/coding-style.rst . Plus,
you want me to take the patch, not Linus.

> > > +extern struct led_hw_trigger_type hw_control_led_trig_type;
> > > +extern struct led_trigger hw_control_led_trig;
> > > +
> > > +#else /* !IS_ENABLED(CONFIG_LEDS_HW_CONTROLLED) */
> >
> > CONFIG_LEDS_HWC? Or maybe CONFIG_LEDTRIG_HW?
>
> The second option looks more reasonable to me, if we move to
> drivers/leds/trigger.

Ok :-).

Best regards,
Pavel