linux-kernel - [PATCH next v2 2/2] printk: reduce setup_text_buf size to LOG_LINE

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Date:   Wed, 30 Sep 2020 11:07:34 +0206
From:   John Ogness <john.ogness@...utronix.de>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH next v2 2/2] printk: reduce setup_text_buf size to LOG_LINE_MAX

@setup_text_buf only copies the original text messages (without any
prefix or extended text). It only needs to be LOG_LINE_MAX in size.

Signed-off-by: John Ogness <john.ogness@...utronix.de>
Reviewed-by: Petr Mladek <pmladek@...e.com>
---
 kernel/printk/printk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 04cf1e00478f..1538df175aae 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1103,7 +1103,7 @@ static unsigned int __init add_to_rb(struct printk_ringbuffer *rb,
 	return prb_record_text_space(&e);
 }
 
-static char setup_text_buf[CONSOLE_EXT_LOG_MAX] __initdata;
+static char setup_text_buf[LOG_LINE_MAX] __initdata;
 
 void __init setup_log_buf(int early)
 {
-- 
2.20.1