linux-kernel - [PATCH] drm/armada: mark symbols static where possible

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Date:   Tue,  6 Sep 2016 15:37:55 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     rmk+kernel@...linux.org.uk, airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        arnd@...db.de, baoyou.xie@...aro.org, xie.baoyou@....com.cn
Subject: [PATCH] drm/armada: mark symbols static where possible

We get 2 warnings when building kernel with W=1:
drivers/gpu/drm/armada/armada_gem.c:215:27: warning: no previous prototype for 'armada_gem_alloc_object' [-Wmissing-prototypes]
drivers/gpu/drm/armada/armada_gem.c:423:1: warning: no previous prototype for 'armada_gem_prime_map_dma_buf' [-Wmissing-prototypes]

In fact, these 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 these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 drivers/gpu/drm/armada/armada_gem.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index cb8f034..1beef28 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -212,7 +212,8 @@ armada_gem_alloc_private_object(struct drm_device *dev, size_t size)
 	return obj;
 }
 
-struct armada_gem_object *armada_gem_alloc_object(struct drm_device *dev,
+static struct
+armada_gem_object *armada_gem_alloc_object(struct drm_device *dev,
 	size_t size)
 {
 	struct armada_gem_object *obj;
@@ -419,7 +420,7 @@ int armada_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 }
 
 /* Prime support */
-struct sg_table *
+static struct sg_table *
 armada_gem_prime_map_dma_buf(struct dma_buf_attachment *attach,
 	enum dma_data_direction dir)
 {
-- 
2.7.4