linux-kernel - Re: [PATCH 01/21] arm64: FP/SIMD: Convert to hotplug state machine

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Date:   Tue, 6 Sep 2016 19:14:59 +0100
From:   Will Deacon <will.deacon@....com>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>, rt@...utronix.de,
        tglx@...utronix.de, Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 01/21] arm64: FP/SIMD: Convert to hotplug state machine

On Tue, Sep 06, 2016 at 07:04:37PM +0200, Sebastian Andrzej Siewior wrote:
> Install the callbacks via the state machine.
> 
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will.deacon@....com>
> Cc: linux-arm-kernel@...ts.infradead.org
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> ---
>  arch/arm64/kernel/fpsimd.c | 22 +++++-----------------
>  include/linux/cpuhotplug.h |  1 +
>  2 files changed, 6 insertions(+), 17 deletions(-)

Looks fine to me:

Acked-by: Will Deacon <will.deacon@....com>

> diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
> index afd59e2ca4b3..0da071ff36d2 100644
> --- a/include/linux/cpuhotplug.h
> +++ b/include/linux/cpuhotplug.h
> @@ -20,6 +20,7 @@ enum cpuhp_state {
>  	CPUHP_SOFTIRQ_DEAD,
>  	CPUHP_NET_MVNETA_DEAD,
>  	CPUHP_CPUIDLE_DEAD,
> +	CPUHP_ARM64_FPSIMD_DEAD,
>  	CPUHP_WORKQUEUE_PREP,
>  	CPUHP_POWER_NUMA_PREPARE,
>  	CPUHP_HRTIMERS_PREPARE,

Are you planning to take this via your tree? The arm64 queue already
touches cpuhotplug.h for the hw-breakpoint and debugmon changes, so
there's a simple conflict to address here.

Will