linux-kernel - linux-next: build failure after merge of the rcu tree

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Date:   Mon, 28 Aug 2017 14:25:48 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: linux-next: build failure after merge of the rcu tree

Hi Paul,

After merging the rcu tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

In file included from arch/arm/kernel/asm-offsets.c:14:0:
include/linux/sched.h: In function 'membarrier_sched_out':
include/linux/sched.h:1680:3: error: implicit declaration of function 'sync_core' [-Werror=implicit-function-declaration]
   sync_core();
   ^

Caused by commit

  0d6eb99818da ("membarrier: Provide register sync core cmd")

I have used the rcu tree from next-20170825 for today.

-- 
Cheers,
Stephen Rothwell