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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Bjorn Helgaas <helgaas@kernel.org>
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>,
        Jason Gunthorpe <jgg@mellanox.com>,
        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 15/39] PCI/MSI: Get rid of PCI_MSI_IRQ_DOMAIN
In-Reply-To: <20221116161230.GA1113864@bhelgaas>
References: <20221116161230.GA1113864@bhelgaas>
Date:   Wed, 16 Nov 2022 18:04:20 +0100
Message-ID: <87r0y2q19n.ffs@tglx>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

On Wed, Nov 16 2022 at 10:12, Bjorn Helgaas wrote:
> On Fri, Nov 11, 2022 at 02:54:38PM +0100, Thomas Gleixner wrote:
>> What a zoo:
>> 
>>      PCI_MSI
>> 	select GENERIC_MSI_IRQ
>> 
>>      PCI_MSI_IRQ_DOMAIN
>>      	def_bool y
>> 	depends on PCI_MSI
>> 	select GENERIC_MSI_IRQ_DOMAIN
>> 
>> Ergo PCI_MSI enables PCI_MSI_IRQ_DOMAIN which in turn selects
>> GENERIC_MSI_IRQ_DOMAIN. So all the dependencies on PCI_MSI_IRQ_DOMAIN are
>> just an indirection to PCI_MSI.
>> 
>> Match the reality and just admit that PCI_MSI requires
>> GENERIC_MSI_IRQ_DOMAIN.
>> 
>> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
>
> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
>
> Just FYI, this will conflict with my work-in-progress to add more
> COMPILE_TEST coverage:
>   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?id=72b5e7c401a1
>
> No *actual* conflicts, just textually next door, so should be sipmle
> to resolve.  Worst case I can postpone my patch until the next cycle.

Linus should be able to resolve that conflict :)