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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Jason Gunthorpe <jgg@nvidia.com>
Cc:     LKML <linux-kernel@vger.kernel.org>, x86@kernel.org,
        Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
        linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Marc Zyngier <maz@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Dave Jiang <dave.jiang@intel.com>,
        Alex Williamson <alex.williamson@redhat.com>,
        Kevin Tian <kevin.tian@intel.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Logan Gunthorpe <logang@deltatee.com>,
        Ashok Raj <ashok.raj@intel.com>, Jon Mason <jdmason@kudzu.us>,
        Allen Hubbe <allenbh@gmail.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        linuxppc-dev@lists.ozlabs.org,
        "Ahmed S. Darwish" <darwi@linutronix.de>,
        Reinette Chatre <reinette.chatre@intel.com>
Subject: Re: [patch 08/39] genirq/msi: Provide msi_domain_ops::post_free()
In-Reply-To: <Y3Uhk4YZ9MN4x5Jx@nvidia.com>
References: <20221111120501.026511281@linutronix.de>
 <20221111122014.063153448@linutronix.de> <Y3Uhk4YZ9MN4x5Jx@nvidia.com>
Date:   Wed, 16 Nov 2022 23:48:47 +0100
Message-ID: <87leoao6r4.ffs@tglx>
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On Wed, Nov 16 2022 at 13:44, Jason Gunthorpe wrote:
> On Fri, Nov 11, 2022 at 02:54:27PM +0100, Thomas Gleixner wrote:
>> To prepare for removing the exposure of __msi_domain_free_irqs() provide a
>> post_free() callback in the MSI domain ops which can be used to solve
>> the problem of the only user of __msi_domain_free_irqs() in arch/powerpc.
>> 
>> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
>> ---
>>  include/linux/msi.h |    4 ++++
>>  kernel/irq/msi.c    |    2 ++
>>  2 files changed, 6 insertions(+)
>
> Make sense, but I do wonder why PPC needs this ordering..

Some hypervisor thing.