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

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Date:   Sun, 18 Sep 2016 22:09:35 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     alexander.deucher@....com, christian.koenig@....com,
        airlied@...ux.ie, nils.wallmenius@...il.com, Emily.Deng@....com,
        cpaul@...hat.com, arindam.nath@....com, David1.Zhou@....com,
        Monk.Liu@....com, Jerry.Zhang@....com, dan.carpenter@...cle.com,
        tom.stdenis@....com, michel.daenzer@....com
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/amdgpu: mark symbols static where possible

We get 7 warnings when building kernel with W=1:
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:1990:5: warning: no previous prototype for 'amdgpu_pre_soft_reset' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c:1548:5: warning: no previous prototype for 'amdgpu_connector_virtual_dpms' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c:1560:5: warning: no previous prototype for 'amdgpu_connector_virtual_set_property' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c:330:5: warning: no previous prototype for 'amdgpu_cs_list_validate' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/dce_virtual.c:98:6: warning: no previous prototype for 'dce_virtual_stop_mc_access' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/dce_virtual.c:130:6: warning: no previous prototype for 'dce_virtual_resume_mc_access' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/dce_virtual.c:136:6: warning: no previous prototype for 'dce_virtual_set_vga_render_state' [-Wmissing-prototypes]

In fact, all of the 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/amd/amdgpu/amdgpu_connectors.c | 6 ++++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c         | 2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c     | 2 +-
 drivers/gpu/drm/amd/amdgpu/dce_virtual.c       | 6 +++---
 4 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index 319a5e1..decbba5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -1545,7 +1545,8 @@ static int amdgpu_connector_virtual_mode_valid(struct drm_connector *connector,
 	return MODE_OK;
 }
 
-int amdgpu_connector_virtual_dpms(struct drm_connector *connector, int mode)
+static int
+amdgpu_connector_virtual_dpms(struct drm_connector *connector, int mode)
 {
 	return 0;
 }
@@ -1557,7 +1558,8 @@ amdgpu_connector_virtual_detect(struct drm_connector *connector, bool force)
 	return connector_status_connected;
 }
 
-int amdgpu_connector_virtual_set_property(struct drm_connector *connector,
+static int
+amdgpu_connector_virtual_set_property(struct drm_connector *connector,
 				  struct drm_property *property,
 				  uint64_t val)
 {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index d80e5d3..b408eea 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -327,7 +327,7 @@ retry:
 	return r;
 }
 
-int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
+static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
 			    struct list_head *validated)
 {
 	struct amdgpu_bo_list_entry *lobj;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index c38dc47..09b809d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1987,7 +1987,7 @@ static bool amdgpu_check_soft_reset(struct amdgpu_device *adev)
 	return asic_hang;
 }
 
-int amdgpu_pre_soft_reset(struct amdgpu_device *adev)
+static int amdgpu_pre_soft_reset(struct amdgpu_device *adev)
 {
 	int i, r = 0;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
index 00663a7..2d02acd 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
@@ -95,7 +95,7 @@ static bool dce_virtual_is_display_hung(struct amdgpu_device *adev)
 	return false;
 }
 
-void dce_virtual_stop_mc_access(struct amdgpu_device *adev,
+static void dce_virtual_stop_mc_access(struct amdgpu_device *adev,
 			      struct amdgpu_mode_mc_save *save)
 {
 	switch (adev->asic_type) {
@@ -127,13 +127,13 @@ void dce_virtual_stop_mc_access(struct amdgpu_device *adev,
 
 	return;
 }
-void dce_virtual_resume_mc_access(struct amdgpu_device *adev,
+static void dce_virtual_resume_mc_access(struct amdgpu_device *adev,
 				struct amdgpu_mode_mc_save *save)
 {
 	return;
 }
 
-void dce_virtual_set_vga_render_state(struct amdgpu_device *adev,
+static void dce_virtual_set_vga_render_state(struct amdgpu_device *adev,
 				    bool render)
 {
 	return;
-- 
2.7.4