From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 30 Jan 2020 11:58:43 +0000 (+0100)
Subject: n_tty: check printk arguments for n_tty_trace
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a287885f1e378bff5f58cee6d0fd16b886c4863b;p=linux.git

n_tty: check printk arguments for n_tty_trace

When N_TTY_TRACE is undefined (the default), define n_tty_trace to use
no_printk. That way, arguments are still checked during compilation.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200130115843.7452-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index f9c584244f72c..640fdd1e4c1d9 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -84,7 +84,7 @@
 #ifdef N_TTY_TRACE
 # define n_tty_trace(f, args...)	trace_printk(f, ##args)
 #else
-# define n_tty_trace(f, args...)
+# define n_tty_trace(f, args...)	no_printk(f, ##args)
 #endif
 
 struct n_tty_data {