Re: [PATCH] trace/irq: fix WARNING in check_flags while CONFIG_TRACE_IRQFLAGS opened

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] trace/irq: fix WARNING in check_flags while CONFIG_TRACE_IRQFLAGS opened
Date	2016-02-22 13:30 +0100
Message-ID	<r4XMK-5Nd-15@gated-at.bofh.it> (permalink)
References	<r4VBi-42I-35@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, Feb 22, 2016 at 06:06:45PM +0800, Wang Yufen wrote:
> if CONFIG_TRACE_IRQFLAGS opened, we got that warning:
> [  214.078880] ------------[ cut here ]------------
> 
> [  214.083521] WARNING: CPU: 4 PID: 1 at kernel/locking/lockdep.c:3557
> check_flags.part.40+0x1c0/0x1d0()

I'm not entirely sure how to open a CONFIG_ symbol, but when I have it
enabled, I do not get this warning.

So your report is missing some critical information.

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[PATCH] trace/irq: fix WARNING in check_flags while CONFIG_TRACE_IRQFLAGS opened Wang Yufen <wangyufen@huawei.com> - 2016-02-22 11:10 +0100
  Re: [PATCH] trace/irq: fix WARNING in check_flags while  CONFIG_TRACE_IRQFLAGS opened Peter Zijlstra <peterz@infradead.org> - 2016-02-22 13:30 +0100

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