linux-kernel - Compile errors with dell_rbtn_notifier

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Date:	Thu, 21 May 2015 16:53:37 -0400
From:	Valdis Kletnieks <Valdis.Kletnieks@...edu>
To:	Pali Rohar <pali.rohar@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Compile errors with dell_rbtn_notifier_register

commit 61104aa44529d59bd01a5d51df571ca2823a04b3
Author: Pali RohÃ¡r <pali.rohar@...il.com>
Date:   Thu May 14 12:54:27 2015 +0200

    dell-laptop: Use dell-rbtn instead i8042 filter when possible

causes build errors:

  LD      init/built-in.o       
drivers/built-in.o: In function `dell_init':
/usr/src/linux-next/drivers/platform/x86/dell-laptop.c:762: undefined reference to `dell_rbtn_notifier_register'
/usr/src/linux-next/drivers/platform/x86/dell-laptop.c:2016: undefined reference to `dell_rbtn_notifier_unregister'
drivers/built-in.o: In function `dell_exit':
/usr/src/linux-next/drivers/platform/x86/dell-laptop.c:2041: undefined reference to `dell_rbtn_notifier_unregister'

when built with:

CONFIG_DELL_LAPTOP=y
CONFIG_DELL_RBTN=m

because the builtin then references a symbol that's in a module.

Probably needs some Kconfig magic to ensure this case doesn't happen.

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