linux-kernel - Re: [PATCH 1/1] irq_work.h: fix warning when CONFIG_IRQ

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Date:	Fri, 8 Mar 2013 13:38:12 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	James Hogan <james.hogan@...tec.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: Re: [PATCH 1/1] irq_work.h: fix warning when CONFIG_IRQ_WORK=n

2013/3/8 James Hogan <james.hogan@...tec.com>:
> In addition to this warning I also got the following linker error when
> CONFIG_IRQ_WORK=n:
>
> kernel/built-in.o In function `wake_up_klogd':
> (.text.wake_up_klogd+0xb4): undefined reference to `irq_work_queue'
>
> which appears to be because of the following commit:
>
> commit 74876a98a87a115254b3a66a14b27320b7f0acaa ("printk: Wake up klogd
> using irq_work") also merged in v3.9-rc1.
>
> Can somebody more familiar with that code please fix it.

I see. We need to make a wake_up_klogd() off case when CONFIG_PRINTK=n
I'm working on this.

Thanks.
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