linux-kernel - Re: [PATCH v2] drm/edid: use true and false for boolean values

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Date:   Tue, 30 Jan 2018 17:31:59 +0200
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>
Cc:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        David Airlie <airlied@...ux.ie>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>,
        Daniel Vetter <daniel.vetter@...el.com>
Subject: Re: [PATCH v2] drm/edid: use true and false for boolean values

On Tue, 30 Jan 2018, Ville Syrjälä <ville.syrjala@...ux.intel.com> wrote:
> On Tue, Jan 30, 2018 at 10:09:27AM -0500, Sean Paul wrote:
>> On Tue, Jan 30, 2018 at 04:05:28AM -0600, Gustavo A. R. Silva wrote:
>> > Assign true or false to boolean variables instead of an integer value.
>> > 
>> > This issue was detected with the help of Coccinelle.
>> 
>> I suppose you could also fix up the other preferred assignment by adding !!
>> to the bitwise & operation.
>
> Assigning >1 to a bool is well defined. No need to clutter the code with
> !! imo.

Agreed.

BR,
Jani.

>
>> 
>> It's also helpful to post the spatch in the commit message so others can
>> replicate your result (this case is pretty trivial, so less important).
>> 
>> Sean
>> 
>> > 
>> > Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
>> > ---
>> > Changes in v2:
>> >  - Use true for boolean value in add_detailed_mode as suggested by Daniel
>> >    Vetter.
>> >  - Update subject.
>> > 
>> >  drivers/gpu/drm/drm_edid.c | 4 ++--
>> >  1 file changed, 2 insertions(+), 2 deletions(-)
>> > 
>> > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
>> > index ddd5379..b1cb262 100644
>> > --- a/drivers/gpu/drm/drm_edid.c
>> > +++ b/drivers/gpu/drm/drm_edid.c
>> > @@ -2767,7 +2767,7 @@ do_detailed_mode(struct detailed_timing *timing, void *c)
>> >  
>> >  		drm_mode_probed_add(closure->connector, newmode);
>> >  		closure->modes++;
>> > -		closure->preferred = 0;
>> > +		closure->preferred = false;
>> >  	}
>> >  }
>> >  
>> > @@ -2784,7 +2784,7 @@ add_detailed_modes(struct drm_connector *connector, struct edid *edid,
>> >  	struct detailed_mode_closure closure = {
>> >  		.connector = connector,
>> >  		.edid = edid,
>> > -		.preferred = 1,
>> > +		.preferred = true,
>> >  		.quirks = quirks,
>> >  	};
>> >  
>> > -- 
>> > 2.7.4
>> > 
>> 
>> -- 
>> Sean Paul, Software Engineer, Google / Chromium OS
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@...ts.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Jani Nikula, Intel Open Source Technology Center

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