linux-kernel - [for-next][PATCH 4/4] ring-buffer: Remove the unused variable bmeta

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Message-ID: <20250323050933.941248766@goodmis.org>
Date: Sun, 23 Mar 2025 01:09:18 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: linux-kernel@...r.kernel.org
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
 Mark Rutland <mark.rutland@....com>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Abaci Robot <abaci@...ux.alibaba.com>,
 Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [for-next][PATCH 4/4] ring-buffer: Remove the unused variable bmeta

From: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>

Variable bmeta is not effectively used, so delete it.

kernel/trace/ring_buffer.c:1952:27: warning: variable ‘bmeta’ set but not used.

Link: https://lore.kernel.org/20250317015524.3902-1-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=19524
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
---
 kernel/trace/ring_buffer.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 94be81edffd2..302b1404213c 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1949,7 +1949,6 @@ static void rb_meta_validate_events(struct ring_buffer_per_cpu *cpu_buffer)
 static void rb_range_meta_init(struct trace_buffer *buffer, int nr_pages, int scratch_size)
 {
 	struct ring_buffer_cpu_meta *meta;
-	struct ring_buffer_meta *bmeta;
 	unsigned long *subbuf_mask;
 	unsigned long delta;
 	void *subbuf;
@@ -1964,8 +1963,6 @@ static void rb_range_meta_init(struct trace_buffer *buffer, int nr_pages, int sc
 	if (rb_meta_init(buffer, scratch_size))
 		valid = true;
 
-	bmeta = buffer->meta;
-
 	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
 		void *next_meta;
 
-- 
2.47.2