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

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Date:   Tue, 19 Apr 2022 12:36:24 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     Joel Fernandes <joel@...lfernandes.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the rcu tree

Hi all,

After merging the rcu tree, today's linux-next build (x86_64 allmodconfig)
failed like this:

In file included from kernel/rcu/tree.c:5031:
kernel/rcu/tree_nocb.h: In function 'rcu_init_nohz':
kernel/rcu/tree_nocb.h:1162:14: error: 'rcu_nocb_is_setup' undeclared (first use in this function); did you mean 'rcu_nocb_setup'?
 1162 |         if (!rcu_nocb_is_setup) {
      |              ^~~~~~~~~~~~~~~~~
      |              rcu_nocb_setup
kernel/rcu/tree_nocb.h:1162:14: note: each undeclared identifier is reported only once for each function it appears in

Caused by commit

  d6932dca19b1 ("rcu/nocb: Add an option to offload all CPUs on boot")

interacting with commit

  8d2aaa9b7c29 ("rcu/nocb: Move rcu_nocb_is_setup to rcu_state")

I have used the rcu tree from next-20220414 for today.

-- 
Cheers,
Stephen Rothwell

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