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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 <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
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@ -1289,7 +1289,8 @@ static void tda998x_audio_shutdown(struct device *dev, void *data)
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mutex_unlock(&priv->audio_mutex);
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}
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int tda998x_audio_digital_mute(struct device *dev, void *data, bool enable)
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static int
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tda998x_audio_digital_mute(struct device *dev, void *data, bool enable)
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{
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struct tda998x_priv *priv = dev_get_drvdata(dev);
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