drm/vc4: vc4_debugfs_regset32() can be static

Fixes: c9be804c ("drm/vc4: Use common helpers for debugfs setup by the driver components.")
Signed-off-by: Nkbuild test robot <lkp@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190403213629.GA31570@lkp-ib03

drivers/gpu/drm/vc4/vc4_debugfs.c

@@ -48,7 +48,7 @@ vc4_debugfs_init(struct drm_minor *minor)
 	return 0;
 }
 
-int vc4_debugfs_regset32(struct seq_file *m, void *unused)
+static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
 {
 	struct drm_info_node *node = (struct drm_info_node *)m->private;
 	struct debugfs_regset32 *regset = node->info_ent->data;