From 0361748f3b4a1cd73657a0a44fc3bc71ea30e8eb Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 26 May 2015 15:36:58 +0100
Subject: ARM: 8371/1: always select IRQ_WORK on SMP

Any SMP kernel now requires the irq_work code after
generic_smp_call_function_single_interrupt() started using it,
or we get:

kernel/built-in.o: In function `flush_smp_call_function_queue':
:(.text+0x4dc3a): undefined reference to `irq_work_run'

Fixes: 478850160636c4f ("irq_work: Implement remote queueing")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 45df48b..81c8b91 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1307,6 +1307,7 @@ config SMP
 	depends on GENERIC_CLOCKEVENTS
 	depends on HAVE_SMP
 	depends on MMU || ARM_MPU
+	select IRQ_WORK
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, say N. If you have a system with more
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