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Date:   Tue, 2 Jun 2020 14:47:20 -0400
From:   Qian Cai <cai@lca.pw>
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     tglx@linutronix.de, luto@amacapital.net,
        linux-kernel@vger.kernel.org, x86@kernel.org,
        Lai Jiangshan <laijs@linux.alibaba.com>,
        sean.j.christopherson@intel.com, andrew.cooper3@citrix.com,
        daniel.thompson@linaro.org, a.darwish@linutronix.de,
        rostedt@goodmis.org, bigeasy@linutronix.de,
        Michael Ellerman <mpe@ellerman.id.au>,
        linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 11/14] x86/entry: Clarify irq_{enter,exit}_rcu()
Message-ID: <20200602184720.GA1607@lca.pw>
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 <20200529213321.359433429@infradead.org>
 <20200602144235.GA1129@lca.pw>
 <20200602150511.GH706478@hirez.programming.kicks-ass.net>
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On Tue, Jun 02, 2020 at 05:05:11PM +0200, Peter Zijlstra wrote:
> On Tue, Jun 02, 2020 at 10:42:35AM -0400, Qian Cai wrote:
> 
> > Reverted this commit fixed the POWER9 boot warning,
> 
> ARGH, I'm an idiot. Please try this instead:
>
> 
> diff --git a/kernel/softirq.c b/kernel/softirq.c
> index a3eb6eba8c41..c4201b7f42b1 100644
> --- a/kernel/softirq.c
> +++ b/kernel/softirq.c
> @@ -438,7 +438,7 @@ void irq_exit_rcu(void)
>   */
>  void irq_exit(void)
>  {
> -	irq_exit_rcu();
> +	__irq_exit_rcu();
>  	rcu_irq_exit();
>  	 /* must be last! */
>  	lockdep_hardirq_exit();

This works fine.