linux-kernel - [PATCH] ring-buffer: Use fallthrough pseudo-keyword

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Message-Id: <20210511140246.18868-1-jj251510319013@gmail.com>
Date:   Tue, 11 May 2021 22:02:46 +0800
From:   Wei Ming Chen <jj251510319013@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     rostedt@...dmis.org, mingo@...hat.com,
        Wei Ming Chen <jj251510319013@...il.com>
Subject: [PATCH] ring-buffer: Use fallthrough pseudo-keyword

Replace /* fall through */ comment with pseudo-keyword macro fallthrough[1]

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

Signed-off-by: Wei Ming Chen <jj251510319013@...il.com>
---
 kernel/trace/ring_buffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 2c0ee6484990..d1463eac11a3 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -3391,7 +3391,7 @@ static void check_buffer(struct ring_buffer_per_cpu *cpu_buffer,
 		case RINGBUF_TYPE_PADDING:
 			if (event->time_delta == 1)
 				break;
-			/* fall through */
+			fallthrough;
 		case RINGBUF_TYPE_DATA:
 			ts += event->time_delta;
 			break;
-- 
2.25.1