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Date: Mon, 13 Feb 2017 11:38:43 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Marc Zyngier <marc.zyngier@arm.com>
cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
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        Christoffer Dall <christoffer.dall@linaro.org>,
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        Eric Auger <eric.auger@redhat.com>
Subject: Re: [RFC PATCH 19/33] irqchip/gic-v3-its: Add VLPI configuration
 handling
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On Tue, 17 Jan 2017, Marc Zyngier wrote:

> When a VLPI is reconfigured (enabled, disabled, change in priority),
> the full configuration byte must be written, and the caches invalidated.
> 
> Also, when using the irq_mask/irq_unmask methods, it is necessary
> to disable the doorbell for that particular interrupt (by mapping it
> to 1023) on top of clearing the Enable bit.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

Aside of the switch/case part:

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>