linux-kernel - Re: [PATCH v8 5/7] irqdomain: Add irq_domain_{push,pop}

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Message-ID: <725e8645-2936-0695-2a40-96035570f27f@arm.com>
Date:   Fri, 18 Aug 2017 10:17:29 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     David Daney <david.daney@...ium.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-gpio@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 5/7] irqdomain: Add irq_domain_{push,pop}_irq()
 functions.

On 18/08/17 01:53, David Daney wrote:
> For an already existing irqdomain hierarchy, as might be obtained via
> a call to pci_enable_msix_range(), a PCI driver wishing to add an
> additional irqdomain to the hierarchy needs to be able to insert the
> irqdomain to that already initialized hierarchy.  Calling
> irq_domain_create_hierarchy() allows the new irqdomain to be created,
> but no existing code allows for initializing the associated irq_data.
> 
> Add a couple of helper functions (irq_domain_push_irq() and
> irq_domain_pop_irq()) to initialize the irq_data for the new
> irqdomain added to an existing hierarchy.
> 
> Signed-off-by: David Daney <david.daney@...ium.com>
Reviewed-by: Marc Zyngier <marc.zyngier@....com>

	M.
-- 
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