[PATCH] s390: increase cio_trace debug event size

Debugging events in cio_trace/hex_ascii are truncated for some trace entries.
Increase trace event size to 16 bytes to cover longer text events, make
CIO_HEX_EVENT an inline function that loops to cover bigger hex events.
Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/s390/cio/cio.c

@@ -67,7 +67,7 @@ cio_debug_init (void)
 		goto out_unregister;
 	debug_register_view (cio_debug_msg_id, &debug_sprintf_view);
 	debug_set_level (cio_debug_msg_id, 2);
-	cio_debug_trace_id = debug_register ("cio_trace", 16, 4, 8);
+	cio_debug_trace_id = debug_register ("cio_trace", 16, 4, 16);
 	if (!cio_debug_trace_id)
 		goto out_unregister;
 	debug_register_view (cio_debug_trace_id, &debug_hex_ascii_view);

drivers/s390/cio/cio_debug.h

@@ -3,6 +3,11 @@
 
 #include <asm/debug.h>
 
+/* for use of debug feature */
+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 { \
 		debug_text_event(cio_debug_trace_id, imp, txt); \
 	} while (0)
@@ -15,18 +20,19 @@
 		debug_sprintf_event(cio_debug_crw_id, imp , ##args); \
 	} while (0)
 
-#define CIO_HEX_EVENT(imp, args...) do { \
-                debug_event(cio_debug_trace_id, imp, ##args); \
-        } while (0)
+static inline void
+CIO_HEX_EVENT(int level, void *data, int length)
+{
+	while (length > 0) {
+		debug_event(cio_debug_trace_id, level, data, length);
+		length -= cio_debug_trace_id->buf_size;
+		data += cio_debug_trace_id->buf_size;
+	}
+}
 
 #define CIO_DEBUG(printk_level,event_level,msg...) ({ \
 	if (cio_show_msg) printk(printk_level msg); \
 	CIO_MSG_EVENT (event_level, msg); \
 })
 
-/* for use of debug feature */
-extern debug_info_t *cio_debug_msg_id;
-extern debug_info_t *cio_debug_trace_id;
-extern debug_info_t *cio_debug_crw_id;
-
 #endif