linux-kernel - Re: [PATCH v2 2/2] pci: Support "removable" attribute for PCI devices

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Message-ID: <CAJZ5v0jF1M95MJO+gGL2rmk=rmt5u0sYR-DCJW4+Bb5WP+3W7w@mail.gmail.com>
Date:   Thu, 29 Apr 2021 11:57:52 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Oliver Neukum <oneukum@...e.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        David Laight <David.Laight@...lab.com>,
        Rajat Jain <rajatja@...gle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux PCI <linux-pci@...r.kernel.org>,
        "open list:ULTRA-WIDEBAND (UWB) SUBSYSTEM:" 
        <linux-usb@...r.kernel.org>, Bjorn Helgaas <helgaas@...nel.org>,
        Rajat Jain <rajatxjain@...il.com>,
        Jesse Barnes <jsbarnes@...gle.com>,
        Dmitry Torokhov <dtor@...gle.com>
Subject: Re: [PATCH v2 2/2] pci: Support "removable" attribute for PCI devices

On Thu, Apr 29, 2021 at 11:03 AM Oliver Neukum <oneukum@...e.com> wrote:
>
> Am Mittwoch, den 28.04.2021, 14:21 +0200 schrieb Rafael J. Wysocki:
>
> > In principle, in the wake of Thunderbolt every PCI driver handling
> > PCIe devices needs to be able to deal with a device that's gone away
> > without notice, because in principle any PCIe device can be included
> > into a Thunderbolt docking station which may go away as a whole
> > without notice.
>
> Yes, but we are dealing with what we export to user space, don't we?

Right, so it would be good to know why exporting this information to
user space is desired.