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

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Date:   Mon, 4 Jan 2021 13:56:29 +0100
From:   Frederic Weisbecker <frederic@...nel.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     "Paul E. McKenney" <paulmck@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the rcu tree

On Mon, Jan 04, 2021 at 11:37:36AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the rcu tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
> 
> arch/arm/mach-imx/cpuidle-imx6q.c: In function 'imx6q_enter_wait':
> arch/arm/mach-imx/cpuidle-imx6q.c:32:7: error: implicit declaration of function 'need_resched'; did you mean 'tif_need_resched'? [-Werror=implicit-function-declaration]
>    32 |  if (!need_resched())
>       |       ^~~~~~~~~~~~
>       |       tif_need_resched
> 
> Caused by commit
> 
>   7ca83ec735ce ("ARM: imx6q: Fix missing need_resched() check after
>   rcu_idle_enter()")

Thanks for the report, I'm checking that.

> 
> I have used the rcu tree from next-20201223 for today.
> 
> -- 
> Cheers,
> Stephen Rothwell