We get 2 warnings when building kernel with W=1:
drivers/gpu/drm/radeon/radeon_device.c:1961:5: warning: no previous prototype 
for 'radeon_debugfs_init' [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_device.c:1966:6: warning: no previous prototype 
for 'radeon_debugfs_cleanup' [-Wmissing-prototypes]

In fact, these functions are dummy, but can be removed,
so this patch removes them.

Signed-off-by: Baoyou Xie <baoyou....@linaro.org>
---
 drivers/gpu/drm/radeon/radeon_device.c | 11 -----------
 drivers/gpu/drm/radeon/radeon_drv.c    |  9 ---------
 2 files changed, 20 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c 
b/drivers/gpu/drm/radeon/radeon_device.c
index a00dd2f..63447f1 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1956,14 +1956,3 @@ static void radeon_debugfs_remove_files(struct 
radeon_device *rdev)
        }
 #endif
 }
-
-#if defined(CONFIG_DEBUG_FS)
-int radeon_debugfs_init(struct drm_minor *minor)
-{
-       return 0;
-}
-
-void radeon_debugfs_cleanup(struct drm_minor *minor)
-{
-}
-#endif
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c 
b/drivers/gpu/drm/radeon/radeon_drv.c
index 07e4493..86bab2e 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -156,11 +156,6 @@ void radeon_gem_prime_vunmap(struct drm_gem_object *obj, 
void *vaddr);
 extern long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd,
                                    unsigned long arg);
 
-#if defined(CONFIG_DEBUG_FS)
-int radeon_debugfs_init(struct drm_minor *minor);
-void radeon_debugfs_cleanup(struct drm_minor *minor);
-#endif
-
 /* atpx handler */
 #if defined(CONFIG_VGA_SWITCHEROO)
 void radeon_register_atpx_handler(void);
@@ -531,10 +526,6 @@ static struct drm_driver kms_driver = {
        .disable_vblank = radeon_disable_vblank_kms,
        .get_vblank_timestamp = radeon_get_vblank_timestamp_kms,
        .get_scanout_position = radeon_get_crtc_scanoutpos,
-#if defined(CONFIG_DEBUG_FS)
-       .debugfs_init = radeon_debugfs_init,
-       .debugfs_cleanup = radeon_debugfs_cleanup,
-#endif
        .irq_preinstall = radeon_driver_irq_preinstall_kms,
        .irq_postinstall = radeon_driver_irq_postinstall_kms,
        .irq_uninstall = radeon_driver_irq_uninstall_kms,
-- 
2.7.4

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