usb: s3c_udc_otg: fix GCC 4.6 build warnings

Fix:
In file included from s3c_udc_otg.c:216:0:
s3c_udc_otg_xfer_dma.c: In function 'complete_tx':
s3c_udc_otg_xfer_dma.c:280:33: warning: variable 'is_short' set but not used
s3c_udc_otg_xfer_dma.c:280:6: warning: variable 'ep_tsr' set but not used
s3c_udc_otg_xfer_dma.c: In function 's3c_udc_irq':
s3c_udc_otg_xfer_dma.c:469:16: warning: variable 'flags' set but not used
s3c_udc_otg_xfer_dma.c:468:18: warning: variable 'gintmsk' set but not used
s3c_udc_otg_xfer_dma.c: In function 's3c_queue':
s3c_udc_otg_xfer_dma.c:582:14: warning: variable 'gintsts' set but not used
s3c_udc_otg_xfer_dma.c:581:16: warning: variable 'flags' set but not used
s3c_udc_otg_xfer_dma.c: In function 's3c_ep0_read':
s3c_udc_otg_xfer_dma.c:778:6: warning: variable 'ret' set but not used
s3c_udc_otg_xfer_dma.c: In function 's3c_udc_set_halt':
s3c_udc_otg_xfer_dma.c:1020:16: warning: variable 'flags' set but not used
s3c_udc_otg_xfer_dma.c: In function 's3c_ep0_setup':
s3c_udc_otg_xfer_dma.c:1258:13: warning: initialization from incompatible
pointer type [enabled by default]
s3c_udc_otg_xfer_dma.c:1239:16: warning: variable 'is_in' set but not used
s3c_udc_otg_xfer_dma.c:1239:9: warning: variable 'bytes' set but not used
s3c_udc_otg.c: In function 'usb_gadget_register_driver':
s3c_udc_otg.c:292:16: warning: variable 'flags' set but not used
s3c_udc_otg.c: In function 'usb_gadget_unregister_driver':
s3c_udc_otg.c:338:16: warning: variable 'flags' set but not used
s3c_udc_otg.c: In function 's3c_ep_enable':
s3c_udc_otg.c:582:16: warning: variable 'flags' set but not used
s3c_udc_otg.c: In function 's3c_ep_disable':
s3c_udc_otg.c:646:16: warning: variable 'flags' set but not used
s3c_udc_otg.c: In function 's3c_dequeue':
s3c_udc_otg.c:704:16: warning: variable 'flags' set but not used

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Remy Bohmer <linux@bohmer.net>
diff --git a/include/usb/lin_gadget_compat.h b/include/usb/lin_gadget_compat.h
index 9b31511..fce3be7 100644
--- a/include/usb/lin_gadget_compat.h
+++ b/include/usb/lin_gadget_compat.h
@@ -26,7 +26,7 @@
 /* common */
 #define spin_lock_init(...)
 #define spin_lock(...)
-#define spin_lock_irqsave(lock, flags) do {flags = 1; } while (0)
+#define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
 #define spin_unlock(...)
 #define spin_unlock_irqrestore(lock, flags) do {flags = 0; } while (0)
 #define disable_irq(...)
diff --git a/include/usb/s3c_udc.h b/include/usb/s3c_udc.h
index 14dadc8..31d8f6c 100644
--- a/include/usb/s3c_udc.h
+++ b/include/usb/s3c_udc.h
@@ -131,16 +131,10 @@
 #define DEBUG_EP0(fmt, args...) do {} while (0)
 #endif
 
-#ifdef DEBUG_S3C_UDC
-#define DEBUG(fmt, args...) printk(fmt, ##args)
-#else
-#define DEBUG(fmt, args...) do {} while (0)
-#endif
-
 #ifdef DEBUG_S3C_UDC_ISR
-#define DEBUG_ISR(fmt, args...) printk(fmt, ##args)
+#define DEBUG_ISR	1
 #else
-#define DEBUG_ISR(fmt, args...) do {} while (0)
+#define DEBUG_ISR	0
 #endif
 
 #ifdef DEBUG_S3C_UDC_OUT_EP
@@ -150,9 +144,15 @@
 #endif
 
 #ifdef DEBUG_S3C_UDC_IN_EP
-#define DEBUG_IN_EP(fmt, args...) printk(fmt, ##args)
+#define DEBUG_IN_EP	1
 #else
-#define DEBUG_IN_EP(fmt, args...) do {} while (0)
+#define DEBUG_IN_EP	0
+#endif
+
+#if defined(DEBUG_S3C_UDC_SETUP) || defined(DEBUG_S3C_UDC_EP0) || \
+	defined(DEBUG_S3C_UDC_ISR) || defined(DEBUG_S3C_UDC_OUT_EP) || \
+	defined(DEBUG_S3C_UDC_IN_EP) || defined(DEBUG_S3C_UDC)
+#define DEBUG
 #endif
 
 #define ERR(stuff...)		printf("ERR udc: " stuff)