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

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Message-ID: <20200918100019.6bf0053d@canb.auug.org.au>
Date:   Fri, 18 Sep 2020 10:00:19 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the rcu tree

Hi Paul,

On Thu, 17 Sep 2020 15:01:45 -0700 "Paul E. McKenney" <paulmck@...nel.org> wrote:
>
> On Thu, Sep 17, 2020 at 03:19:09PM +1000, Stephen Rothwell wrote:
> > Hi all,
> > 
> > After merging the rcu tree, today's linux-next build (powerpc
> > ppc64_defconfig) failed like this:
> > 
> > In file included from kernel/rcu/update.c:578:
> > kernel/rcu/tasks.h:601:20: error: static declaration of 'show_rcu_tasks_classic_gp_kthread' follows non-static declaration
> >   601 | static inline void show_rcu_tasks_classic_gp_kthread(void) { }
> >       |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > In file included from kernel/rcu/update.c:49:
> > kernel/rcu/rcu.h:537:6: note: previous declaration of 'show_rcu_tasks_classic_gp_kthread' was here
> >   537 | void show_rcu_tasks_classic_gp_kthread(void);
> >       |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > 
> > Caused by commit
> > 
> >   675d3ca52626 ("rcutorture: Make grace-period kthread report match RCU flavor being tested")
> > 
> > I have used the rcu tree from next-20200916 for today.  
> 
> Please accept my apologies for the hassle!  I believe that I finally
> have this straightened out.
> 
> Please ignore if you already pulled -rcu for today, as I previously
> set rcu/next back to a commit preceding the offending one.

No worries, I have the new one.

-- 
Cheers,
Stephen Rothwell

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