From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 4 Jun 2015 12:07:23 +0000 (+0530)
Subject: ARC: make plat_smp_ops weak to allow over-rides
X-Git-Tag: v4.14-rc1~5135^2~18
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=173eaafaed284fc95209902f68f011d01d1eda02;p=platform%2Fkernel%2Flinux-rpi.git

ARC: make plat_smp_ops weak to allow over-rides

This allows platforms to provide their own cpu wakeup routines
as well as IPI send / clear backends, while allowing a SMP kernel w/o
any such backend to build/boot

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---

diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index ee2982d..d07cb53 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -31,7 +31,7 @@ arch_spinlock_t smp_atomic_ops_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 arch_spinlock_t smp_bitops_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 #endif
 
-struct plat_smp_ops  plat_smp_ops;
+struct plat_smp_ops  __weak plat_smp_ops;
 
 /* XXX: per cpu ? Only needed once in early seconday boot */
 struct task_struct *secondary_idle_tsk;