On Mon, 2015-07-13 at 00:25 -0400, Peter Hurley wrote:

On 07/12/2015 11:47 PM, Joe Perches wrote:

quoted

On Sun, 2015-07-12 at 22:49 -0400, Peter Hurley wrote:

quoted

Introduce tty_debug() macro to output uniform debug information for
tty core debug messages (function name and tty name).

[]

quoted

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c

[]

quoted

@@ -768,7 +768,7 @@ static void do_tty_hangup(struct work_struct *work)
 void tty_hangup(struct tty_struct *tty)
 {
 #ifdef TTY_DEBUG_HANGUP
-	printk(KERN_DEBUG "%s hangup...\n", tty_name(tty));
+	tty_debug(tty, "\n");

Why drop the "hangup..." ?

tty_debug() prints the function name; in this case, tty_hangup().

maybe that #ifdef/#endif block could/should be removed
and the function tracer used to track this instead.

cheers, Joe