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

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Message-Id: <20250317015524.3902-1-jiapeng.chong@linux.alibaba.com>
Date: Mon, 17 Mar 2025 09:55:24 +0800
From: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To: rostedt@...dmis.org
Cc: mhiramat@...nel.org,
	mathieu.desnoyers@...icios.com,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
	Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next] ring-buffer: Remove the unused variable bmeta

Variable bmeta is not effectively used, so delete it.

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

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>
---
 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 1f9f3fd7e23d..229427fe0c2f 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;
 
-- 
2.32.0.3.g01195cf9f