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

Paul E. McKenney
2015-04-13T12:41:07Z

On Mon, Apr 13, 2015 at 01:34:05PM +0200, Ingo Molnar wrote:
>
> * Borislav Petkov <bp@suse.de> wrote:
>
> > On Mon, Apr 13, 2015 at 08:39:17PM +1000, Stephen Rothwell wrote:
> > > Hi Paul,
> > >
> > > After merging the rcu tree, today's linux-next build (powerpc allnoconfig)
> > > failed like this:
> > >
> > > init/main.c: In function 'rest_init':
> > > init/main.c:387:2: error: implicit declaration of function 'smpboot_thread_init' [-Werror=implicit-function-declaration]
> > > smpboot_thread_init();
> > > ^
> > >
> > > Caused by commit c55f6e1f6f69 ("cpu: Defer smpboot kthread unparking
> > > until CPU known to scheduler"). The declaration in include/linux/cpu.h
> > > is protected by CONFIG_SMP, its use is not.
> > >
> > > I have reverted that commit for today.
> >
> > Thanks for the report Stephen, I know today is the day of b0rked
> > linux-next builds :-(
> >
> > I think Ingo merged Paul's patch already so here's a fix ontop:
>
> Yeah, I too triggered that build failure and fixed it locally.

What I get for immediately going to long-term testing. The scenarios
that trigger this one were of course the last to run. :-/

Thank you all, and apologies for the hassle!

Thanx, Paul