drm/radeon: Mark all possible functions / structs as static

Let's allow GCC to optimize better.

This exposed some five unused functions, but this patch doesn't remove them.

Signed-off-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 2752f7f..73051ce 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -242,7 +242,7 @@
 	return -1;
 }
 
-void rs400_gpu_init(struct radeon_device *rdev)
+static void rs400_gpu_init(struct radeon_device *rdev)
 {
 	/* FIXME: is this correct ? */
 	r420_pipes_init(rdev);
@@ -252,7 +252,7 @@
 	}
 }
 
-void rs400_mc_init(struct radeon_device *rdev)
+static void rs400_mc_init(struct radeon_device *rdev)
 {
 	u64 base;
 
@@ -370,7 +370,7 @@
 #endif
 }
 
-void rs400_mc_program(struct radeon_device *rdev)
+static void rs400_mc_program(struct radeon_device *rdev)
 {
 	struct r100_mc_save save;