debugobjects: add boot parameter default value

Impact: add .config driven boot parameter default value

Right now debugobjects can only be activated if the debug_objects
boot parameter is passed in via the boot command line.

Make this more convenient (and randomizable) by also providing
a .config method. Enable it by default. (DEBUG_OBJECTS itself
is default-off)

Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 11 insertions, 1 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b0f239e443b..124ece1e67a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -252,6 +252,14 @@ config DEBUG_OBJECTS_TIMERS
           timer routines to track the life time of timer objects and
           validate the timer operations.
 
+config DEBUG_OBJECTS_ENABLE_DEFAULT
+        int "debug_objects bootup default value (0-1)"
+        range 0 1
+        default "1"
+        depends on DEBUG_OBJECTS
+        help
+          Debug objects boot parameter default value
+
 config DEBUG_SLAB
         bool "Debug slab memory allocations"
         depends on DEBUG_KERNEL && SLAB
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index e3ab374e133..5d99be1fd98 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -45,7 +45,9 @@ static struct kmem_cache	*obj_cache;
 static int                      debug_objects_maxchain __read_mostly;
 static int                      debug_objects_fixups __read_mostly;
 static int                      debug_objects_warnings __read_mostly;
-static int                      debug_objects_enabled __read_mostly;
+static int                      debug_objects_enabled __read_mostly
+                                = CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT;
+
 static struct debug_obj_descr   *descr_test  __read_mostly;
 
 static int __init enable_object_debug(char *str)