linux-kernel - Re: [PATCH/RFC] signal: Export signal_wake_up

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Date:   Fri, 5 May 2017 03:07:29 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org
Subject: Re: [PATCH/RFC] signal: Export signal_wake_up_state() to modules

On Fri, May 05, 2017 at 11:49:11AM +0200, Geert Uytterhoeven wrote:
> When using signal_wake_up() from a loadable kernel module:
> 
>     ERROR: "signal_wake_up_state" [drivers/spi/spi-sh-msiof.ko] undefined!
> 
> Export signal_wake_up_state() to modules to fix this.

Or rever the commit that added the users.  This doesn't look like
functionality a driver should use..