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[PATCH] drm/arm: mark symbols static where possible

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  [PATCH] drm/arm: mark symbols static where possible Baoyou Xie <baoyou.xie@linaro.org> - 2016-10-22 11:20 +0200
    Re: [PATCH] drm/arm: mark symbols static where possible Arnd Bergmann <arnd@arndb.de> - 2016-10-24 12:20 +0200
      Re: [PATCH] drm/arm: mark symbols static where possible liviu.dudau@arm.com - 2016-10-24 20:00 +0200

#1506455 — [PATCH] drm/arm: mark symbols static where possible

We get 2 warnings when building kernel with W=1:
drivers/gpu/drm/arm/malidp_planes.c:49:25: warning: no previous prototype for 'malidp_duplicate_plane_state' [-Wmissing-prototypes]
drivers/gpu/drm/arm/malidp_planes.c:66:6: warning: no previous prototype for 'malidp_destroy_plane_state' [-Wmissing-prototypes]

In fact, both functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
So this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
---
 drivers/gpu/drm/arm/malidp_planes.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index 82c193e..5339e87 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -46,7 +46,8 @@ static void malidp_de_plane_destroy(struct drm_plane *plane)
 	devm_kfree(plane->dev->dev, mp);
 }
 
-struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
+static struct
+drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
 {
 	struct malidp_plane_state *state, *m_state;
 
@@ -63,7 +64,7 @@ struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
 	return &state->base;
 }
 
-void malidp_destroy_plane_state(struct drm_plane *plane,
+static void malidp_destroy_plane_state(struct drm_plane *plane,
 				struct drm_plane_state *state)
 {
 	struct malidp_plane_state *m_state = to_malidp_plane_state(state);
-- 
2.7.4

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#1507058

On Saturday, October 22, 2016 5:13:01 PM CEST Baoyou Xie wrote:
> We get 2 warnings when building kernel with W=1:
> drivers/gpu/drm/arm/malidp_planes.c:49:25: warning: no previous prototype for 'malidp_duplicate_plane_state' [-Wmissing-prototypes]
> drivers/gpu/drm/arm/malidp_planes.c:66:6: warning: no previous prototype for 'malidp_destroy_plane_state' [-Wmissing-prototypes]
> 
> In fact, both functions are only used in the file in which they are
> declared and don't need a declaration, but can be made static.
> So this patch marks these functions with 'static'.
> 
> Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
> ---
...
> @@ -63,7 +64,7 @@ struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
>  	return &state->base;
>  }
>  
> -void malidp_destroy_plane_state(struct drm_plane *plane,
> +static void malidp_destroy_plane_state(struct drm_plane *plane,
>  				struct drm_plane_state *state)
>  {
>  	struct malidp_plane_state *m_state = to_malidp_plane_state(state);
> 

The change looks correct, but I notice that the two lines of the
declaration are no longer aligned.

The file follows the normal style of aligning the argument list
in the second line to line up with the opening '(', so please keep
it that way.

	Arnd

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#1507503

On Mon, Oct 24, 2016 at 12:18:37PM +0200, Arnd Bergmann wrote:
> On Saturday, October 22, 2016 5:13:01 PM CEST Baoyou Xie wrote:
> > We get 2 warnings when building kernel with W=1:
> > drivers/gpu/drm/arm/malidp_planes.c:49:25: warning: no previous prototype for 'malidp_duplicate_plane_state' [-Wmissing-prototypes]
> > drivers/gpu/drm/arm/malidp_planes.c:66:6: warning: no previous prototype for 'malidp_destroy_plane_state' [-Wmissing-prototypes]
> > 
> > In fact, both functions are only used in the file in which they are
> > declared and don't need a declaration, but can be made static.
> > So this patch marks these functions with 'static'.
> > 
> > Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
> > ---
> ...
> > @@ -63,7 +64,7 @@ struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane)
> >  	return &state->base;
> >  }
> >  
> > -void malidp_destroy_plane_state(struct drm_plane *plane,
> > +static void malidp_destroy_plane_state(struct drm_plane *plane,
> >  				struct drm_plane_state *state)
> >  {
> >  	struct malidp_plane_state *m_state = to_malidp_plane_state(state);
> > 
> 
> The change looks correct, but I notice that the two lines of the
> declaration are no longer aligned.
> 
> The file follows the normal style of aligning the argument list
> in the second line to line up with the opening '(', so please keep
> it that way.
> 
> 	Arnd
> 

Fixed it locally and pushed it into my public repo @ git://linux-arm.org/linux-ld.git for-upstream/mali-dp

I will send it to David Airlie as a pull request together with the other patches/cleanups.

Many thanks,
Liviu


-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯

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