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Message-ID: <f763d9d8487e77006b233bc16e0883f956850b6c.camel@kernel.crashing.org>
Date:   Thu, 02 Apr 2020 21:41:30 +1100
From:   Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:     Dan Williams <dan.j.williams@...el.com>,
        "Alastair D'Silva" <alastair@...ilva.org>
Cc:     "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
        "Oliver O'Halloran" <oohall@...il.com>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Frederic Barrat <fbarrat@...ux.ibm.com>,
        Andrew Donnellan <ajd@...ux.ibm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh@...nel.org>,
        Anton Blanchard <anton@...abs.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
        Cédric Le Goater <clg@...d.org>,
        Anju T Sudhakar <anju@...ux.vnet.ibm.com>,
        Hari Bathini <hbathini@...ux.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kurz <groug@...d.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Alexey Kardashevskiy <aik@...abs.ru>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-nvdimm <linux-nvdimm@...ts.01.org>,
        Linux MM <linux-mm@...ck.org>
Subject: Re: [PATCH v4 03/25] powerpc/powernv: Map & release OpenCAPI LPC
 memory

On Wed, 2020-04-01 at 01:48 -0700, Dan Williams wrote:
> > 
> > +u64 pnv_ocxl_platform_lpc_setup(struct pci_dev *pdev, u64 size)
> > +{
> > +       struct pci_controller *hose = pci_bus_to_host(pdev->bus);
> > +       struct pnv_phb *phb = hose->private_data;
> 
> Is calling the local variable 'hose' instead of 'host' on purpose?

Haha that's funny :-)

It's an oooooooold usage that comes iirc from sparc ? or maybe alpha ?
I somewhat accidentally picked it up when adding multiple host-bridge
support on powerpc in the early 2000's and it hasn't quite died yet :)

Cheers,
Ben.

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