X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fs390%2Fcio%2Fcio_debug.h;h=e64e8278c42e9979af1d35fb57c685be02327731;hb=94521b2fd27b5ef43573f9f425a48839fa80ebaa;hp=f88844adae1ba432e58e8f1d3744415062dab1e7;hpb=63518472c05a351d779f35803e6ccfb361ae630a;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/s390/cio/cio_debug.h b/drivers/s390/cio/cio_debug.h
index f88844adae1b..e64e8278c42e 100644
--- a/drivers/s390/cio/cio_debug.h
+++ b/drivers/s390/cio/cio_debug.h
@@ -8,21 +8,22 @@ extern debug_info_t *cio_debug_msg_id;
 extern debug_info_t *cio_debug_trace_id;
 extern debug_info_t *cio_debug_crw_id;
 
-#define CIO_TRACE_EVENT(imp, txt) do { \
+#define CIO_TRACE_EVENT(imp, txt) do {				\
 		debug_text_event(cio_debug_trace_id, imp, txt); \
 	} while (0)
 
-#define CIO_MSG_EVENT(imp, args...) do { \
-		debug_sprintf_event(cio_debug_msg_id, imp , ##args); \
+#define CIO_MSG_EVENT(imp, args...) do {				\
+		debug_sprintf_event(cio_debug_msg_id, imp , ##args);	\
 	} while (0)
 
-#define CIO_CRW_EVENT(imp, args...) do { \
-		debug_sprintf_event(cio_debug_crw_id, imp , ##args); \
+#define CIO_CRW_EVENT(imp, args...) do {				\
+		debug_sprintf_event(cio_debug_crw_id, imp , ##args);	\
 	} while (0)
 
-static inline void
-CIO_HEX_EVENT(int level, void *data, int length)
+static inline void CIO_HEX_EVENT(int level, void *data, int length)
 {
+	if (unlikely(!cio_debug_trace_id))
+		return;
 	while (length > 0) {
 		debug_event(cio_debug_trace_id, level, data, length);
 		length -= cio_debug_trace_id->buf_size;
@@ -30,9 +31,4 @@ CIO_HEX_EVENT(int level, void *data, int length)
 	}
 }
 
-#define CIO_DEBUG(printk_level,event_level,msg...) ({ \
-	if (cio_show_msg) printk(printk_level msg); \
-	CIO_MSG_EVENT (event_level, msg); \
-})
-
 #endif