Re: [PATCH 1/2] leds: make the default trigger name const

From: Anton Vorontsov
Date: Mon Jul 28 2008 - 05:53:21 EST


On Sun, Jul 27, 2008 at 06:56:49PM -0700, Trent Piepho wrote:
> On Sun, 27 Jul 2008, Stephen Rothwell wrote:
> > On Sat, 26 Jul 2008 20:08:57 -0600 Grant Likely <grant.likely@xxxxxxxxxxxx> wrote:
> >> On Fri, Jul 25, 2008 at 02:01:44PM -0700, Trent Piepho wrote:
> >>> The default_trigger fields of struct gpio_led and thus struct led_classdev
> >>> are pretty much always assigned from a string literal, which means the
> >>> string can't be modified. Which is fine, since there is no reason to
> >>> modify the string and in fact it never is.
> >>>
> >>> But they should be marked const to prevent such code from being added, to
> >>> prevent warnings if -Wwrite-strings is used and when assigned from a
> >>> constant string other than a string literal (which produces a warning under
> >>> current kernel compiler flags), and for general good coding practices.
> >>>
> >>> Signed-off-by: Trent Piepho <tpiepho@xxxxxxxxxxxxx>
> >> Acked-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
> >
> > I would ack this as well, except I am not sure what tree this patch is
> > against. In the current powerpc next tree,
>
> It was against powerpc next from Jul 22nd, current at the time I made the
> patch. It looks like that file has changed in the last few days. There is a
> patch from Anton Vorontsov, "leds: mark led_classdev.default_trigger as
> const", which adds const to one of the structs I modified, but doesn't get the
> other one (struct gpio_led).

Yes, I posted the patch for my version of OF GPIO LEDs, which didn't use
struct gpio_led's default_trigger.

--
Anton Vorontsov
email: cbouatmailru@xxxxxxxxx
irc://irc.freenode.net/bd2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/