tty: drop tty_debug_wait_until_sent()

It's a nop for everyone as TTY_DEBUG_WAIT_UNTIL_SENT is never set.
Provided, we have better debugging/printout mechanisms nowadays, remove
this mechanism.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230810091510.13006-8-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index e3e1318..f63e8b1 100644 (file)
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -28,14 +28,6 @@
 #include <asm/io.h>
 #include <linux/uaccess.h>
 
-#undef TTY_DEBUG_WAIT_UNTIL_SENT
-
-#ifdef TTY_DEBUG_WAIT_UNTIL_SENT
-# define tty_debug_wait_until_sent(tty, f, args...)    tty_debug(tty, f, ##args)
-#else
-# define tty_debug_wait_until_sent(tty, f, args...)    do {} while (0)
-#endif
-
 #undef DEBUG
 
 /*
@@ -198,8 +190,6 @@ int tty_unthrottle_safe(struct tty_struct *tty)
 
 void tty_wait_until_sent(struct tty_struct *tty, long timeout)
 {
-       tty_debug_wait_until_sent(tty, "wait until sent, timeout=%ld\n", timeout);
-
        if (!timeout)
                timeout = MAX_SCHEDULE_TIMEOUT;