HID: hid debug from hid-debug.h to hid layer

hid-debug.h contains a lot of code, and should not therefore
be a header.

This patch moves the code to generic hid layer as .c source, and
introduces CONFIG_HID_DEBUG to conditionally compile it, instead
of playing with #define DEBUG and including hid-debug.h.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/Kconfig

@@ -22,5 +22,19 @@ config HID
 
 	  If unsure, say Y
 
+config HID_DEBUG
+	bool "HID debugging support"
+	depends on HID
+	---help---
+	This option lets the HID layer output diagnostics about its internal
+	state, resolve HID usages, dump HID fields, etc. Individual HID drivers
+	use this debugging facility to output information about individual HID
+	devices, etc.
+
+	This feature is useful for those who are either debugging the HID parser
+	or any HID hardware device.
+
+	If unsure, say N
+
 endmenu
 

drivers/hid/Makefile

@@ -6,10 +6,14 @@
 hid-objs	:= hid-core.o hid-input.o
 
 # Optional parts of multipart objects.
-
-obj-$(CONFIG_HID)		+= hid.o
+ifeq ($(CONFIG_HID_DEBUG),y)
+hid-objs	+= hid-debug.o
+endif
 
 ifeq ($(CONFIG_INPUT_DEBUG),y)
 EXTRA_CFLAGS += -DDEBUG
 endif
 
+
+obj-$(CONFIG_HID)		+= hid.o
+

drivers/hid/hid-core.c

@@ -28,11 +28,11 @@
 #include <linux/input.h>
 #include <linux/wait.h>
 
-#undef DEBUG
 #undef DEBUG_DATA
 
 #include <linux/hid.h>
 #include <linux/hiddev.h>
+#include <linux/hid-debug.h>
 
 /*
  * Version Information