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Open Source and information security mailing list archives
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Date: Tue, 14 Jul 2009 15:35:37 +0800 From: Lai Jiangshan <laijs@...fujitsu.com> To: Ingo Molnar <mingo@...e.hu>, Steven Rostedt <rostedt@...dmis.org>, Frederic Weisbecker <fweisbec@...il.com>, LKML <linux-kernel@...r.kernel.org> Subject: [PATCH -tip] ring_buffer: fix warning kernel/trace/ring_buffer.c: In function 'rb_tail_page_update': kernel/trace/ring_buffer.c:849: warning: value computed is not used kernel/trace/ring_buffer.c:850: warning: value computed is not used Add a "(void)" to fix this warning. Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com> --- diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index e648ba4..d371279 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -846,8 +846,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer, * not come in and change it. In which case, we * do not want to modify it. */ - local_cmpxchg(&next_page->write, old_write, val); - local_cmpxchg(&next_page->entries, old_entries, eval); + (void)local_cmpxchg(&next_page->write, old_write, val); + (void)local_cmpxchg(&next_page->entries, old_entries, eval); /* * No need to worry about races with clearing out the commit. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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