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Date: Fri, 5 May 2017 03:07:29 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Ingo Molnar <mingo@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
        Oleg Nesterov <oleg@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
        linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org
Subject: Re: [PATCH/RFC] signal: Export signal_wake_up_state() to modules
Message-ID: <20170505100729.GA21589@infradead.org>
References: <1493977751-19340-1-git-send-email-geert+renesas@glider.be>
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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..