linux-kernel - [PATCH] drm: bridge: analogix/dp: mark symbols static where possible

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Date:   Sun, 25 Sep 2016 15:32:44 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     airlied@...ux.ie, ykk@...k-chips.com, inki.dae@...sung.com,
        seanpaul@...omium.org, gustavo.padovan@...labora.co.uk,
        daniel.vetter@...ll.ch, ville.syrjala@...ux.intel.com
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        arnd@...db.de, baoyou.xie@...aro.org, xie.baoyou@....com.cn,
        han.fei@....com.cn, tang.qiang007@....com.cn
Subject: [PATCH] drm: bridge: analogix/dp: mark symbols static where possible

We get 2 warnings when building kernel with W=1:
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c:1053:5: warning: no previous prototype for 'analogix_dp_get_modes' [-Wmissing-prototypes]
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c:1097:1: warning: no previous prototype for 'analogix_dp_detect' [-Wmissing-prototypes]

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

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index efac8ab..e6f7290 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1050,7 +1050,7 @@ out:
 	return ret;
 }
 
-int analogix_dp_get_modes(struct drm_connector *connector)
+static int analogix_dp_get_modes(struct drm_connector *connector)
 {
 	struct analogix_dp_device *dp = to_dp(connector);
 	struct edid *edid = (struct edid *)dp->edid;
@@ -1093,7 +1093,7 @@ static const struct drm_connector_helper_funcs analogix_dp_connector_helper_func
 	.best_encoder = analogix_dp_best_encoder,
 };
 
-enum drm_connector_status
+static enum drm_connector_status
 analogix_dp_detect(struct drm_connector *connector, bool force)
 {
 	struct analogix_dp_device *dp = to_dp(connector);
-- 
2.7.4