diff mbox series

[42/42] include/drm/drm_atomic: Make use of 'new_crtc_state'

Message ID 20201116174112.1833368-43-lee.jones@linaro.org
State Accepted
Commit 94ffd9b86284ab01464b4546b4a927e419b8be34
Headers show
Series Rid W=1 warnings from GPU (non-Radeon) | expand

Commit Message

Lee Jones Nov. 16, 2020, 5:41 p.m. UTC
In the macro for_each_oldnew_crtc_in_state() 'crtc_state' is provided
as a container for state->crtcs[i].new_state, but is not utilised in
some use-cases, so we fake-use it instead.

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/imx/ipuv3-plane.c: In function ‘ipu_planes_assign_pre’:
 drivers/gpu/drm/imx/ipuv3-plane.c:746:42: warning: variable ‘crtc_state’ set but not used [-Wunused-but-set-variable]

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 include/drm/drm_atomic.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Daniel Vetter Nov. 17, 2020, 7:42 p.m. UTC | #1
On Mon, Nov 16, 2020 at 05:41:12PM +0000, Lee Jones wrote:
> In the macro for_each_oldnew_crtc_in_state() 'crtc_state' is provided
> as a container for state->crtcs[i].new_state, but is not utilised in
> some use-cases, so we fake-use it instead.
> 
> Fixes the following W=1 kernel build warning(s):
> 
>  drivers/gpu/drm/imx/ipuv3-plane.c: In function ‘ipu_planes_assign_pre’:
>  drivers/gpu/drm/imx/ipuv3-plane.c:746:42: warning: variable ‘crtc_state’ set but not used [-Wunused-but-set-variable]
> 
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
> Cc: Fabio Estevam <festevam@gmail.com>
> Cc: NXP Linux Team <linux-imx@nxp.com>
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Lee Jones <lee.jones@linaro.org>

Ok I merged them all except:
- drm/amd and drm/imx, should be picked up already by respective
  maintainers
- drm/msm, Rob promised to take care

Thanks a lot for your patches.
-Daniel

> ---
>  include/drm/drm_atomic.h | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
> index dc5e0fbecc04e..54e051a957dfc 100644
> --- a/include/drm/drm_atomic.h
> +++ b/include/drm/drm_atomic.h
> @@ -783,7 +783,8 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
>  			      (void)(crtc) /* Only to avoid unused-but-set-variable warning */, \
>  			     (old_crtc_state) = (__state)->crtcs[__i].old_state, \
>  			     (void)(old_crtc_state) /* Only to avoid unused-but-set-variable warning */, \
> -			     (new_crtc_state) = (__state)->crtcs[__i].new_state, 1))
> +			     (new_crtc_state) = (__state)->crtcs[__i].new_state, \
> +			     (void)(new_crtc_state) /* Only to avoid unused-but-set-variable warning */, 1))
>  
>  /**
>   * for_each_old_crtc_in_state - iterate over all CRTCs in an atomic update
> -- 
> 2.25.1
>
Lee Jones Nov. 18, 2020, 8:43 a.m. UTC | #2
On Tue, 17 Nov 2020, Daniel Vetter wrote:

> On Mon, Nov 16, 2020 at 05:41:12PM +0000, Lee Jones wrote:
> > In the macro for_each_oldnew_crtc_in_state() 'crtc_state' is provided
> > as a container for state->crtcs[i].new_state, but is not utilised in
> > some use-cases, so we fake-use it instead.
> > 
> > Fixes the following W=1 kernel build warning(s):
> > 
> >  drivers/gpu/drm/imx/ipuv3-plane.c: In function ‘ipu_planes_assign_pre’:
> >  drivers/gpu/drm/imx/ipuv3-plane.c:746:42: warning: variable ‘crtc_state’ set but not used [-Wunused-but-set-variable]
> > 
> > Cc: Philipp Zabel <p.zabel@pengutronix.de>
> > Cc: David Airlie <airlied@linux.ie>
> > Cc: Daniel Vetter <daniel@ffwll.ch>
> > Cc: Shawn Guo <shawnguo@kernel.org>
> > Cc: Sascha Hauer <s.hauer@pengutronix.de>
> > Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
> > Cc: Fabio Estevam <festevam@gmail.com>
> > Cc: NXP Linux Team <linux-imx@nxp.com>
> > Cc: dri-devel@lists.freedesktop.org
> > Signed-off-by: Lee Jones <lee.jones@linaro.org>
> 
> Ok I merged them all except:
> - drm/amd and drm/imx, should be picked up already by respective
>   maintainers
> - drm/msm, Rob promised to take care
> 
> Thanks a lot for your patches.

Perfect.  Thank you for reviewing/merging them.

> > ---
> >  include/drm/drm_atomic.h | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
> > index dc5e0fbecc04e..54e051a957dfc 100644
> > --- a/include/drm/drm_atomic.h
> > +++ b/include/drm/drm_atomic.h
> > @@ -783,7 +783,8 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
> >  			      (void)(crtc) /* Only to avoid unused-but-set-variable warning */, \
> >  			     (old_crtc_state) = (__state)->crtcs[__i].old_state, \
> >  			     (void)(old_crtc_state) /* Only to avoid unused-but-set-variable warning */, \
> > -			     (new_crtc_state) = (__state)->crtcs[__i].new_state, 1))
> > +			     (new_crtc_state) = (__state)->crtcs[__i].new_state, \
> > +			     (void)(new_crtc_state) /* Only to avoid unused-but-set-variable warning */, 1))
> >  
> >  /**
> >   * for_each_old_crtc_in_state - iterate over all CRTCs in an atomic update
>
diff mbox series

Patch

diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index dc5e0fbecc04e..54e051a957dfc 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -783,7 +783,8 @@  void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
 			      (void)(crtc) /* Only to avoid unused-but-set-variable warning */, \
 			     (old_crtc_state) = (__state)->crtcs[__i].old_state, \
 			     (void)(old_crtc_state) /* Only to avoid unused-but-set-variable warning */, \
-			     (new_crtc_state) = (__state)->crtcs[__i].new_state, 1))
+			     (new_crtc_state) = (__state)->crtcs[__i].new_state, \
+			     (void)(new_crtc_state) /* Only to avoid unused-but-set-variable warning */, 1))
 
 /**
  * for_each_old_crtc_in_state - iterate over all CRTCs in an atomic update