linux-kernel - [PATCH v4 02/22] printk: Make vprintk

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Message-Id: <63f538ac0cef81e9019f23f041e9a1b26a03f30e.1745390829.git.namcao@linutronix.de>
Date: Wed, 23 Apr 2025 08:49:57 +0200
From: Nam Cao <namcao@...utronix.de>
To: Steven Rostedt <rostedt@...dmis.org>,
	Gabriele Monaco <gmonaco@...hat.com>,
	linux-trace-kernel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: john.ogness@...utronix.de,
	Nam Cao <namcao@...utronix.de>,
	Petr Mladek <pmladek@...e.com>,
	Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: [PATCH v4 02/22] printk: Make vprintk_deferred() public

vprintk_deferred() is useful for implementing runtime verification
reactors. Make it public.

Signed-off-by: Nam Cao <namcao@...utronix.de>
Reviewed-by: Petr Mladek <pmladek@...e.com>
---
Cc: John Ogness <john.ogness@...utronix.de>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>
---
 include/linux/printk.h   | 5 +++++
 kernel/printk/internal.h | 1 -
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index 4217a9f412b2..1b7eebe13f14 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -154,6 +154,7 @@ int vprintk_emit(int facility, int level,
 
 asmlinkage __printf(1, 0)
 int vprintk(const char *fmt, va_list args);
+__printf(1, 0) int vprintk_deferred(const char *fmt, va_list args);
 
 asmlinkage __printf(1, 2) __cold
 int _printk(const char *fmt, ...);
@@ -213,6 +214,10 @@ int vprintk(const char *s, va_list args)
 {
 	return 0;
 }
+__printf(1, 0) int vprintk_deferred(const char *fmt, va_list args)
+{
+	return 0;
+}
 static inline __printf(1, 2) __cold
 int _printk(const char *s, ...)
 {
diff --git a/kernel/printk/internal.h b/kernel/printk/internal.h
index a91bdf802967..28afdeb58412 100644
--- a/kernel/printk/internal.h
+++ b/kernel/printk/internal.h
@@ -71,7 +71,6 @@ int vprintk_store(int facility, int level,
 		  const char *fmt, va_list args);
 
 __printf(1, 0) int vprintk_default(const char *fmt, va_list args);
-__printf(1, 0) int vprintk_deferred(const char *fmt, va_list args);
 
 void __printk_safe_enter(void);
 void __printk_safe_exit(void);
-- 
2.39.5