From c20ea8fd498636b8f7408bf10a305d58a4a05927 Mon Sep 17 00:00:00 2001 From: Baoyou Xie Date: Sat, 22 Oct 2016 17:14:42 +0800 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 Reviewed-by: Arnd Bergmann Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1477127682-3615-1-git-send-email-baoyou.xie@linaro.org --- 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 9798d400d817..af8683e0dd54 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); -- 2.45.2