linux-kernel - [PATCH][next] printk: Use fallthrough pseudo-keyword

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Date:   Fri, 2 Oct 2020 17:46:27 -0500
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        John Ogness <john.ogness@...utronix.de>
Cc:     linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org
Subject: [PATCH][next] printk: Use fallthrough pseudo-keyword

Replace /* FALL THRU */ comment with the new pseudo-keyword macro
fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
 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 1538df175aae..fe64a49344bf 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1617,7 +1617,7 @@ int do_syslog(int type, char __user *buf, int len, int source)
 	/* Read/clear last kernel messages */
 	case SYSLOG_ACTION_READ_CLEAR:
 		clear = true;
-		/* FALL THRU */
+		fallthrough;
 	/* Read last kernel messages */
 	case SYSLOG_ACTION_READ_ALL:
 		if (!buf || len < 0)
-- 
2.27.0