From: Petr Mladek <pmladek@suse.com>
Date: Mon, 25 Aug 2025 02:57:01 +0000 (+0800)
Subject: panic: clean up message about deprecated 'panic_print' parameter
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e40d2014b2ccaf0f1a49ba0d0cfb59ac2a36cc6e;p=users%2Fhch%2Fmisc.git

panic: clean up message about deprecated 'panic_print' parameter

Remove duplication of the message about deprecated 'panic_print'
parameter.

Also make the wording more direct.  Make it clear that the new parameters
already exist and should be used instead.

Link: https://lkml.kernel.org/r/20250825025701.81921-5-feng.tang@linux.alibaba.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Feng Tang <feng.tang@linux.alibaba.com>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Tested-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: Feng Tang <feng.tang@linux.alibaba.com>
Cc: Askar Safin <safinaskar@zohomail.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Paul E . McKenney" <paulmck@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/kernel/panic.c b/kernel/panic.c
index 12a10e17ab4a..24bca263f896 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -77,6 +77,11 @@ ATOMIC_NOTIFIER_HEAD(panic_notifier_list);
 
 EXPORT_SYMBOL(panic_notifier_list);
 
+static void panic_print_deprecated(void)
+{
+	pr_info_once("Kernel: The 'panic_print' parameter is now deprecated. Please use 'panic_sys_info' and 'panic_console_replay' instead.\n");
+}
+
 #ifdef CONFIG_SYSCTL
 
 /*
@@ -125,7 +130,7 @@ static int proc_taint(const struct ctl_table *table, int write,
 static int sysctl_panic_print_handler(const struct ctl_table *table, int write,
 			   void *buffer, size_t *lenp, loff_t *ppos)
 {
-	pr_info_once("Kernel: 'panic_print' sysctl interface will be obsoleted by both 'panic_sys_info' and 'panic_console_replay'\n");
+	panic_print_deprecated();
 	return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
 }
 
@@ -944,13 +949,13 @@ core_param(panic_console_replay, panic_console_replay, bool, 0644);
 
 static int panic_print_set(const char *val, const struct kernel_param *kp)
 {
-	pr_info_once("Kernel: 'panic_print' parameter will be obsoleted by both 'panic_sys_info' and 'panic_console_replay'\n");
+	panic_print_deprecated();
 	return  param_set_ulong(val, kp);
 }
 
 static int panic_print_get(char *val, const struct kernel_param *kp)
 {
-	pr_info_once("Kernel: 'panic_print' parameter will be obsoleted by both 'panic_sys_info' and 'panic_console_replay'\n");
+	panic_print_deprecated();
 	return  param_get_ulong(val, kp);
 }