linux-kernel - [PATCH] printk: export symbols for debug modules

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Date:   Tue, 15 Aug 2023 10:07:11 +0800
From:   Yunlong Xing <yunlong.xing@...soc.com>
To:     <pmladek@...e.com>, <senozhatsky@...omium.org>,
        <rostedt@...dmis.org>, <john.ogness@...utronix.de>
CC:     <linux-kernel@...r.kernel.org>, <enlinmu@...il.com>,
        <enlin.mu@...soc.com>, <yunlong.xing23@...il.com>
Subject: [PATCH] printk: export symbols for debug modules

From: Enlin Mu <enlin.mu@...soc.com>

the module is out-of-tree, it saves kernel logs when panic

Signed-off-by: Enlin Mu <enlin.mu@...soc.com>
---
 kernel/printk/printk.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 357a4d18f638..f381442512b3 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -538,12 +538,14 @@ char *log_buf_addr_get(void)
 {
 	return log_buf;
 }
+EXPORT_SYMBOL_GPL(log_buf_addr_get);
 
 /* Return log buffer size */
 u32 log_buf_len_get(void)
 {
 	return log_buf_len;
 }
+EXPORT_SYMBOL_GPL(log_buf_len_get);
 
 /*
  * Define how much of the log buffer we could take at maximum. The value
-- 
2.25.1