2016-10-22 09:15:04

by Baoyou Xie

[permalink] [raw]
Subject: [PATCH] drm/i2c/tda998x: mark symbol static where possible

We get 1 warning when building kernel with W=1:
drivers/gpu/drm/i2c/tda998x_drv.c:1292:5: warning: no previous prototype for 'tda998x_audio_digital_mute' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks this function with 'static'.

Signed-off-by: Baoyou Xie <[email protected]>
---
drivers/gpu/drm/i2c/tda998x_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index 9798d40..af8683e 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -1289,7 +1289,8 @@ static void tda998x_audio_shutdown(struct device *dev, void *data)
mutex_unlock(&priv->audio_mutex);
}

-int tda998x_audio_digital_mute(struct device *dev, void *data, bool enable)
+static int
+tda998x_audio_digital_mute(struct device *dev, void *data, bool enable)
{
struct tda998x_priv *priv = dev_get_drvdata(dev);

--
2.7.4


2016-10-24 10:14:28

by Arnd Bergmann

[permalink] [raw]
Subject: Re: [PATCH] drm/i2c/tda998x: mark symbol static where possible

On Saturday, October 22, 2016 5:14:42 PM CEST Baoyou Xie wrote:
> We get 1 warning when building kernel with W=1:
> drivers/gpu/drm/i2c/tda998x_drv.c:1292:5: warning: no previous prototype for 'tda998x_audio_digital_mute' [-Wmissing-prototypes]
>
> In fact, this function is only used in the file in which it is
> declared and don't need a declaration, but can be made static.
> So this patch marks this function with 'static'.
>
> Signed-off-by: Baoyou Xie <[email protected]>
>

Reviewed-by: Arnd Bergmann <[email protected]>

2016-10-24 14:27:52

by Daniel Vetter

[permalink] [raw]
Subject: Re: [PATCH] drm/i2c/tda998x: mark symbol static where possible

On Mon, Oct 24, 2016 at 12:14:14PM +0200, Arnd Bergmann wrote:
> On Saturday, October 22, 2016 5:14:42 PM CEST Baoyou Xie wrote:
> > We get 1 warning when building kernel with W=1:
> > drivers/gpu/drm/i2c/tda998x_drv.c:1292:5: warning: no previous prototype for 'tda998x_audio_digital_mute' [-Wmissing-prototypes]
> >
> > In fact, this function is only used in the file in which it is
> > declared and don't need a declaration, but can be made static.
> > So this patch marks this function with 'static'.
> >
> > Signed-off-by: Baoyou Xie <[email protected]>
> >
>
> Reviewed-by: Arnd Bergmann <[email protected]>

Applied to drm-misc, thanks.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

2016-10-31 10:05:59

by Russell King (Oracle)

[permalink] [raw]
Subject: Re: [PATCH] drm/i2c/tda998x: mark symbol static where possible

On Mon, Oct 24, 2016 at 04:27:45PM +0200, Daniel Vetter wrote:
> On Mon, Oct 24, 2016 at 12:14:14PM +0200, Arnd Bergmann wrote:
> > On Saturday, October 22, 2016 5:14:42 PM CEST Baoyou Xie wrote:
> > > We get 1 warning when building kernel with W=1:
> > > drivers/gpu/drm/i2c/tda998x_drv.c:1292:5: warning: no previous prototype for 'tda998x_audio_digital_mute' [-Wmissing-prototypes]
> > >
> > > In fact, this function is only used in the file in which it is
> > > declared and don't need a declaration, but can be made static.
> > > So this patch marks this function with 'static'.
> > >
> > > Signed-off-by: Baoyou Xie <[email protected]>
> > >
> >
> > Reviewed-by: Arnd Bergmann <[email protected]>
>
> Applied to drm-misc, thanks.

Argh. This conflicts with my patch series posted before I went away,
so now we're going to end up with merge conflicts... I suppose you're
happy to handle the conflict as you've bypassed waiting for an ack
from the driver maintainer...

--
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