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drm/i2c/tda998x: mark symbol static where possible

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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 <baoyou.xie@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1477127682-3615-1-git-send-email-baoyou.xie@linaro.org
This commit is contained in:
Baoyou Xie 2016-10-22 17:14:42 +08:00 committed by Daniel Vetter
parent 7b889adbac
commit c20ea8fd49
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i2c/tda998x_drv.c
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@ -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);