linux-kernel - Re: [PATCH] irqchip: Provide stronger type checking for IRQCHIP_MATCH/IRQCHIP

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Message-ID: <866c3d7a-0cc9-0b49-6437-64443abfdfc4@gmail.com>
Date:   Thu, 21 Oct 2021 11:06:39 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Marc Zyngier <maz@...nel.org>, linux-kernel@...r.kernel.org
Cc:     kernel-team@...roid.com, Rob Herring <robh@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] irqchip: Provide stronger type checking for
 IRQCHIP_MATCH/IRQCHIP_DECLARE

On 10/20/21 3:45 AM, Marc Zyngier wrote:
> Both IRQCHIP_DECLARE() and IRQCHIP_MATCH() use an underlying of_device_id()
> structure to encode the matching property and the init callback.
> However, this callback is stored in as a void * pointer, which obviously
> defeat any attempt at stronger type checking.
> 
> Work around this by providing a new macro that builds on top of the
> __typecheck() primitive, and that can be used to warn when there is
> a discrepency between the drivers and core code.
> 
> Signed-off-by: Marc Zyngier <maz@...nel.org>

Acked-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian