Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936618AbcJVJPE (ORCPT ); Sat, 22 Oct 2016 05:15:04 -0400 Received: from mail-pf0-f175.google.com ([209.85.192.175]:33986 "EHLO mail-pf0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936454AbcJVJPC (ORCPT ); Sat, 22 Oct 2016 05:15:02 -0400 From: Baoyou Xie To: rmk+kernel@armlinux.org.uk, airlied@linux.ie Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, arnd@arndb.de, baoyou.xie@linaro.org, xie.baoyou@zte.com.cn, han.fei@zte.com.cn, tang.qiang007@zte.com.cn Subject: [PATCH] drm/i2c/tda998x: mark symbol static where possible Date: Sat, 22 Oct 2016 17:14:42 +0800 Message-Id: <1477127682-3615-1-git-send-email-baoyou.xie@linaro.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1052 Lines: 28 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 --- 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