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

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Date:   Mon, 29 Aug 2016 18:33:39 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     bskeggs@...hat.com, airlied@...ux.ie, Julia.Lawall@...6.fr
Cc:     dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, arnd@...aro.org,
        baoyou.xie@...aro.org, xie.baoyou@....com.cn
Subject: [PATCH] drm/nouveau/pm: mark symbols static where possible

We get 2 warnings when biuld kernel with W=1:
drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c:75:1: warning: no previous prototype for 'nvkm_perfsig_find' [-Wmissing-prototypes]
drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c:703:1: warning: no previous prototype for 'nvkm_perfsrc_new' [-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/nouveau/nvkm/engine/pm/base.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
index 8616636..dde89a4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c
@@ -71,7 +71,7 @@ nvkm_perfdom_find(struct nvkm_pm *pm, int di)
 	return NULL;
 }
 
-struct nvkm_perfsig *
+static struct nvkm_perfsig *
 nvkm_perfsig_find(struct nvkm_pm *pm, u8 di, u8 si, struct nvkm_perfdom **pdom)
 {
 	struct nvkm_perfdom *dom = *pdom;
@@ -699,7 +699,7 @@ nvkm_pm_oclass_get(struct nvkm_oclass *oclass, int index,
 	return 1;
 }
 
-int
+static int
 nvkm_perfsrc_new(struct nvkm_pm *pm, struct nvkm_perfsig *sig,
 		 const struct nvkm_specsrc *spec)
 {
-- 
2.7.4