linux-kernel - Re: [PATCH 1/7] dell-led: remove GUID check from dell_micmute_led

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Date:   Thu, 15 Dec 2016 15:34:43 +0100
From:   Michał Kępień <kernel@...pniu.pl>
To:     Pali Rohár <pali.rohar@...il.com>
Cc:     Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <j.anaszewski@...sung.com>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Darren Hart <dvhart@...radead.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Bob Rodgers <Robert_Rodgers@...l.com>,
        Louis Davis <Louis_Davis@...l.com>,
        Jim Dailey <Jim_Dailey@...l.com>,
        Alex Hung <alex.hung@...onical.com>,
        Hui Wang <hui.wang@...onical.com>, linux-leds@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] dell-led: remove GUID check from
 dell_micmute_led_set()

> On Thursday 08 December 2016 13:36:12 Michał Kępień wrote:
> > As dell_micmute_led_set() no longer uses the dell_wmi_perform_query()
> > method, which was removed in 0c41a08 ("dell-led: use
> > dell_smbios_send_request() for performing SMBIOS calls"), the
> > DELL_APP_GUID check is redundant and thus can be safely removed.
> > 
> > Signed-off-by: Michał Kępień <kernel@...pniu.pl>
> > ---
> >  drivers/leds/dell-led.c | 3 ---
> >  1 file changed, 3 deletions(-)
> > 
> > diff --git a/drivers/leds/dell-led.c b/drivers/leds/dell-led.c
> > index b3d6e9c..e8e8f67 100644
> > --- a/drivers/leds/dell-led.c
> > +++ b/drivers/leds/dell-led.c
> > @@ -51,9 +51,6 @@ static int dell_micmute_led_set(int state)
> >  	struct calling_interface_buffer *buffer;
> >  	struct calling_interface_token *token;
> >  
> > -	if (!wmi_has_guid(DELL_APP_GUID))
> > -		return -ENODEV;
> > -
> >  	if (state == 0)
> >  		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
> >  	else if (state == 1)
> 
> Reviewed-by: Pali Rohár <pali.rohar@...il.com>

Thanks for reviewing.

> Anyway, you can remove DELL_APP_GUID from other places too...

I did that in patch 6.  I singled out this one occurrence because it is
part of the code that is moved to drivers/platform/x86.  Please let me
know if you would like me to arrange this differently.

-- 
Best regards,
Michał Kępień