linux-kernel - [patch RFC 02/29] printk: Declare log

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Message-ID: <20220910222300.466273303@linutronix.de>
Date:   Sun, 11 Sep 2022 00:27:34 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     John Ogness <john.ogness@...utronix.de>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Helge Deller <deller@....de>,
        Jason Wessel <jason.wessel@...driver.com>,
        Daniel Thompson <daniel.thompson@...aro.org>
Subject: [patch RFC 02/29] printk: Declare log_wait properly

kernel/printk/printk.c:365:1: warning: symbol 'log_wait' was not declared. Should it be static?

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 fs/proc/kmsg.c         |    2 --
 include/linux/syslog.h |    3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -17,8 +17,6 @@
 
 #include <asm/io.h>
 
-extern wait_queue_head_t log_wait;
-
 static int kmsg_open(struct inode * inode, struct file * file)
 {
 	return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_PROC);
--- a/include/linux/syslog.h
+++ b/include/linux/syslog.h
@@ -8,6 +8,8 @@
 #ifndef _LINUX_SYSLOG_H
 #define _LINUX_SYSLOG_H
 
+#include <linux/wait.h>
+
 /* Close the log.  Currently a NOP. */
 #define SYSLOG_ACTION_CLOSE          0
 /* Open the log. Currently a NOP. */
@@ -35,5 +37,6 @@
 #define SYSLOG_FROM_PROC             1
 
 int do_syslog(int type, char __user *buf, int count, int source);
+extern wait_queue_head_t log_wait;
 
 #endif /* _LINUX_SYSLOG_H */