From: Adrian Bunk <bunk@kernel.org>

With the needlessly global marker_debug being static gcc can optimize the
unused code away.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/marker.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN kernel/marker.c~make-marker_debug-static kernel/marker.c
--- a/kernel/marker.c~make-marker_debug-static
+++ a/kernel/marker.c
@@ -29,7 +29,7 @@ extern struct marker __start___markers[]
 extern struct marker __stop___markers[];
 
 /* Set to 1 to enable marker debug output */
-const int marker_debug;
+static const int marker_debug;
 
 /*
  * markers_mutex nests inside module_mutex. Markers mutex protects the builtin
_