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Date:   Fri, 18 Nov 2022 13:34:12 +0100
From:   "Ahmed S. Darwish" <darwi@linutronix.de>
To:     Bjorn Helgaas <helgaas@kernel.org>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        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>,
        Reinette Chatre <reinette.chatre@intel.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        linuxppc-dev@lists.ozlabs.org
Subject: Re: [patch 23/39] PCI/MSI: Move pci_alloc_irq_vectors_affinity() to
 api.c
Message-ID: <Y3d7xJ5hvhxlRrOE@lx-t490>
References: <20221111122014.927531290@linutronix.de>
 <20221116162322.GA1115421@bhelgaas>
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On Wed, Nov 16, 2022 at 10:23:22AM -0600, Bjorn Helgaas wrote:
> On Fri, Nov 11, 2022 at 02:54:51PM +0100, Thomas Gleixner wrote:
...
> > +
> > +/**
> > + * pci_alloc_irq_vectors_affinity() - Allocate multiple device interrupt
> > + *                                    vectors with affinity requirements
> > + * @dev:      the PCI device to operate on
> > + * @min_vecs: minimum required number of vectors (must be >= 1)
> > + * @max_vecs: maximum desired number of vectors
> > + * @flags:    allocation flags, as in pci_alloc_irq_vectors()
> > + * @affd:     affinity requirements (can be %NULL).
> > + *
> > + * Same as pci_alloc_irq_vectors(), but with the extra @affd parameter.
> > + * Check that function docs, and &struct irq_affinity, for more details.
>
> Is "&struct irq_affinity" some kernel-doc syntax, or is the "&"
> superfluous?
>

Hmmm, I stole it from Documentation/doc-guide/kernel-doc.rst. htmldoc
parses it and generates a link to the referenced structure's kernel-doc.

But, yeah, this was literally the first usage of such a doc pattern in
the entire kernel's C code :)

Thanks,

--
Ahmed S. Darwish
Linutronix GmbH