linux-kernel - Re: [PATCH 03/42] drm/drm_dp_mst_topology: Remove set but never used variable 'len'

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Date:   Tue, 17 Nov 2020 18:12:50 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     linux-kernel@...r.kernel.org,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 03/42] drm/drm_dp_mst_topology: Remove set but never used
 variable 'len'

On Tue, 17 Nov 2020, Daniel Vetter wrote:

> On Mon, Nov 16, 2020 at 05:40:33PM +0000, Lee Jones wrote:
> > Fixes the following W=1 kernel build warning(s):
> > 
> >  drivers/gpu/drm/drm_dp_mst_topology.c: In function ‘drm_dp_send_query_stream_enc_status’:
> >  drivers/gpu/drm/drm_dp_mst_topology.c:3263:6: warning: variable ‘len’ set but not used [-Wunused-but-set-variable]
> > 
> > Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> > Cc: Maxime Ripard <mripard@...nel.org>
> > Cc: Thomas Zimmermann <tzimmermann@...e.de>
> > Cc: David Airlie <airlied@...ux.ie>
> > Cc: Daniel Vetter <daniel@...ll.ch>
> > Cc: dri-devel@...ts.freedesktop.org
> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> 
> Going to apply this, but I noticed that the return value of the
> build_query_stream_enc_status() is pointless. Can you pls follow up with
> an additional patch to change that to void?

I can.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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