linux-kernel - [PATCH printk 02/18] printk: Declare log

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Message-Id: <20220924000454.3319186-3-john.ogness@linutronix.de>
Date:   Sat, 24 Sep 2022 02:10:38 +0206
From:   John Ogness <john.ogness@...utronix.de>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH printk 02/18] printk: Declare log_wait properly

From: Thomas Gleixner <tglx@...utronix.de>

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>
Signed-off-by: John Ogness <john.ogness@...utronix.de>
Reviewed-by: Sergey Senozhatsky <senozhatsky@...omium.org>
---
 fs/proc/kmsg.c         | 2 --
 include/linux/syslog.h | 3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index b38ad552887f..9d6950ac10fe 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -18,8 +18,6 @@
 #include <linux/uaccess.h>
 #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);
diff --git a/include/linux/syslog.h b/include/linux/syslog.h
index 86af908e2663..955f80e34d4f 100644
--- 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 */
-- 
2.30.2