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

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Message-Id: <20170621133040.GT3721@linux.vnet.ibm.com>
Date:   Wed, 21 Jun 2017 06:30:40 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the rcu tree

On Wed, Jun 21, 2017 at 04:48:06PM +1000, Stephen Rothwell wrote:
> Hi Paul,
> 
> After merging the rcu tree, today's linux-next build (x86_64 allnoconfig)
> produced this warning:
> 
> kernel/cpu.c: In function 'boot_cpu_state_init':
> kernel/cpu.c:1778:6: warning: unused variable 'cpu' [-Wunused-variable]
>   int cpu;
>       ^
> 
> Introduced by commit
> 
>   faeb334286b7 ("rcu: Migrate callbacks earlier in the CPU-offline timeline")

Hello, Stephen,

Apologies, should be fixed now -- added a __maybe_unused.

But I didn't realize you did SMP=n builds!  ;-)

							Thanx, Paul