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

Link: https://lkml.kernel.org/r/20210511140246.18868-1-jj251510319013@gmail.com
Signed-off-by: Wei Ming Chen <jj251510319013@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 2c0ee64..d1463ea 100644 (file)
--- 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;