kobject: add CONFIG_DEBUG_KOBJECT

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

lib/Kconfig.debug

@@ -64,6 +64,13 @@ config DEBUG_SPINLOCK_SLEEP
 	  If you say Y here, various routines which may sleep will become very
 	  noisy if they are called with a spinlock held.
 
+config DEBUG_KOBJECT
+	bool "kobject debugging"
+	depends on DEBUG_KERNEL
+	help
+	  If you say Y here, some extra kobject debugging messages will be sent
+	  to the syslog. 
+
 config DEBUG_HIGHMEM
 	bool "Highmem debugging"
 	depends on DEBUG_KERNEL && HIGHMEM && (X86 || PPC32 || MIPS || SPARC32)

lib/Makefile

@@ -2,12 +2,16 @@
 # Makefile for some libs needed in the kernel.
 #
 
-
 lib-y := errno.o ctype.o string.o vsprintf.o cmdline.o \
 	 bust_spinlocks.o rbtree.o radix-tree.o dump_stack.o \
 	 kobject.o kref.o idr.o div64.o parser.o int_sqrt.o \
 	 bitmap.o extable.o kobject_uevent.o
 
+ifeq ($(CONFIG_DEBUG_KOBJECT),y)
+CFLAGS_kobject.o += -DDEBUG
+CFLAGS_kobject_uevent.o += -DDEBUG
+endif
+
 lib-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
 lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o
 

lib/kobject.c

@@ -10,8 +10,6 @@
  * about using the kobject interface.
  */
 
-#undef DEBUG
-
 #include <linux/kobject.h>
 #include <linux/string.h>
 #include <linux/module.h>