Dynamic debug: Add more flags
Add flags that allow the user to specify via debugfs whether or not the
module name, function name, line number and/or thread ID have to be
included in the printed message.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Greg Banks <gnb@fmeh.org>
Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 1c70028..0c9653f 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -31,6 +31,10 @@
* writes commands to <debugfs>/dynamic_debug/control
*/
#define _DPRINTK_FLAGS_PRINT (1<<0) /* printk() a message using the format */
+#define _DPRINTK_FLAGS_INCL_MODNAME (1<<1)
+#define _DPRINTK_FLAGS_INCL_FUNCNAME (1<<2)
+#define _DPRINTK_FLAGS_INCL_LINENO (1<<3)
+#define _DPRINTK_FLAGS_INCL_TID (1<<4)
#define _DPRINTK_FLAGS_DEFAULT 0
unsigned int flags:8;
char enabled;
@@ -42,6 +46,8 @@
#if defined(CONFIG_DYNAMIC_DEBUG)
extern int ddebug_remove_module(const char *mod_name);
+extern int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
+ __attribute__ ((format (printf, 2, 3)));
#define dynamic_pr_debug(fmt, ...) do { \
static struct _ddebug descriptor \
@@ -50,7 +56,7 @@
{ KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__, \
_DPRINTK_FLAGS_DEFAULT }; \
if (unlikely(descriptor.enabled)) \
- printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
+ __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \
} while (0)