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authorBart Van Assche <bvanassche@acm.org>2011-01-23 19:17:24 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2011-02-04 02:39:16 +0300
commit8ba6ebf583f12da32036fc0f003ab4043e54692e (patch)
tree8fdd980d30fea50722b28fb5d782236174b2d188 /include/linux/dynamic_debug.h
parent9b99b7f84ea520d2ecaf816bde247a1ad07e454e (diff)
downloadlinux-8ba6ebf583f12da32036fc0f003ab4043e54692e.tar.xz
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>
Diffstat (limited to 'include/linux/dynamic_debug.h')
-rw-r--r--include/linux/dynamic_debug.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 1c70028f81f9..0c9653f11c18 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -31,6 +31,10 @@ struct _ddebug {
* 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 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
#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 @@ extern int ddebug_remove_module(const char *mod_name);
{ 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)