linux-kernel - Re: [patch V2 03/21] genirq/irqdomain: Rename irq_domain::dev to irq_domain::pm

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Date:   Thu, 24 Nov 2022 13:46:34 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Ashok Raj <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
        Allen Hubbe <allenbh@...il.com>,
        Jason Gunthorpe <jgg@...dia.com>
Subject: Re: [patch V2 03/21] genirq/irqdomain: Rename irq_domain::dev to irq_domain::pm_dev

On Mon, 21 Nov 2022 14:36:22 +0000,
Thomas Gleixner <tglx@...utronix.de> wrote:
> 
> irq_domain::dev is a misnomer as it's usually the rule that a device
> pointer points to something which is directly related to the instance.
> 
> irq_domain::dev can point to some other device for power management to
> ensure that this underlying device is not powered down when an interrupt is
> allocated.
> 
> The upcoming per device MSI domains really require a pointer to the device
> which instantiated the irq domain and not to some random other device which
> is required for power management down the chain.
> 
> Rename irq_domain::dev to irq_domain::pm_dev and fixup the few sites which
> use that pointer.
> 
> Conversion was done with the help of coccinelle.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
> ---
>  drivers/irqchip/irq-gic.c |    4 ++--
>  include/linux/irqdomain.h |    6 +++---
>  kernel/irq/chip.c         |    8 ++++----
>  3 files changed, 9 insertions(+), 9 deletions(-)

Reviewed-by: Marc Zyngier <maz@...nel.org>

	M.

-- 
Without deviation from the norm, progress is not possible.