linux-kernel - Re: [RFC 0/9] PCIe Hotplug Slot Emulation driver

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Message-ID: <20200210165857.GA19419@lst.de>
Date:   Mon, 10 Feb 2020 17:58:57 +0100
From:   "hch@....de" <hch@....de>
To:     "Derrick, Jonathan" <jonathan.derrick@...el.com>
Cc:     "hch@....de" <hch@....de>,
        "mr.nuke.me@...il.com" <mr.nuke.me@...il.com>,
        "Shevchenko, Andriy" <andriy.shevchenko@...el.com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mika.westerberg@...ux.intel.com" <mika.westerberg@...ux.intel.com>,
        "helgaas@...nel.org" <helgaas@...nel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "Baldysiak, Pawel" <pawel.baldysiak@...el.com>,
        "okaya@...nel.org" <okaya@...nel.org>,
        "kbusch@...nel.org" <kbusch@...nel.org>
Subject: Re: [RFC 0/9] PCIe Hotplug Slot Emulation driver

On Mon, Feb 10, 2020 at 03:05:47PM +0000, Derrick, Jonathan wrote:
> > The code seems like one giant hack to me.  What is the real life
> > use case for this?  Another Intel chipset fuckup like vmd or the ahci
> > remapping?
> > 
> Exactly as the cover letter describes. An interposer being used on a
> non-hotplug slot.

That isn't a use a case, that iѕ a description of the implementation.
Why would you want this code?