linux-kernel - [PATCH V2 1/5] panic: clean up code for console replay

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Message-Id: <20250616010840.38258-2-feng.tang@linux.alibaba.com>
Date: Mon, 16 Jun 2025 09:08:36 +0800
From: Feng Tang <feng.tang@...ux.alibaba.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
	Petr Mladek <pmladek@...e.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Lance Yang <lance.yang@...ux.dev>,
	Jonathan Corbet <corbet@....net>,
	linux-kernel@...r.kernel.org
Cc: paulmck@...nel.org,
	john.ogness@...utronix.de,
	Feng Tang <feng.tang@...ux.alibaba.com>
Subject: [PATCH V2 1/5] panic: clean up code for console replay

Currently the panic_print_sys_info() was called twice with different
parameters to handle console replay case, which is kind of confusing.

Add panic_console_replay() explicitly to make the code straightforward.

Suggested-by: Petr Mladek <pmladek@...e.com>
Signed-off-by: Feng Tang <feng.tang@...ux.alibaba.com>
---
 kernel/panic.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/panic.c b/kernel/panic.c
index b0b9a8bf4560..af0d5206a624 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -238,14 +238,14 @@ void nmi_panic(struct pt_regs *regs, const char *msg)
 }
 EXPORT_SYMBOL(nmi_panic);
 
-static void panic_print_sys_info(bool console_flush)
+static void panic_console_replay(void)
 {
-	if (console_flush) {
-		if (panic_print & PANIC_PRINT_ALL_PRINTK_MSG)
-			console_flush_on_panic(CONSOLE_REPLAY_ALL);
-		return;
-	}
+	if (panic_print & PANIC_PRINT_ALL_PRINTK_MSG)
+		console_flush_on_panic(CONSOLE_REPLAY_ALL);
+}
 
+static void panic_print_sys_info(void)
+{
 	if (panic_print & PANIC_PRINT_TASK_INFO)
 		show_state();
 
@@ -410,7 +410,7 @@ void panic(const char *fmt, ...)
 	 */
 	atomic_notifier_call_chain(&panic_notifier_list, 0, buf);
 
-	panic_print_sys_info(false);
+	panic_print_sys_info();
 
 	kmsg_dump_desc(KMSG_DUMP_PANIC, buf);
 
@@ -439,7 +439,7 @@ void panic(const char *fmt, ...)
 	debug_locks_off();
 	console_flush_on_panic(CONSOLE_FLUSH_PENDING);
 
-	panic_print_sys_info(true);
+	panic_console_replay();
 
 	if (!panic_blink)
 		panic_blink = no_blink;
-- 
2.39.5 (Apple Git-154)