tty: core: Add tty_debug() for printk(KERN_DEBUG) messages
Introduce tty_debug() macro to output uniform debug information for
tty core debug messages (function name and tty name).
Note: printk(KERN_DEBUG) is retained here over pr_debug() since
messages can be enabled in non-DEBUG builds.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/tty.h b/include/linux/tty.h
index ad6c891..d072ded 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -709,4 +709,10 @@
static inline void proc_tty_unregister_driver(struct tty_driver *d) {}
#endif
+#define tty_debug(tty, f, args...) \
+ do { \
+ printk(KERN_DEBUG "%s: %s: " f, __func__, \
+ tty_name(tty), ##args); \
+ } while (0)
+
#endif