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Re: [PATCH] Allow userspace to request device probing even if defer_all_probes is true

From Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups linux.kernel
Subject Re: [PATCH] Allow userspace to request device probing even if defer_all_probes is true
Date 2017-01-04 10:30 +0100
Message-ID <sVQ3n-2IT-9@gated-at.bofh.it> (permalink)
References <sVGnn-4J3-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Jan 03, 2017 at 03:07:20PM -0800, Kees Cook wrote:
> From: Matthew Garrett <mjg59@coreos.com>
> 
> Userspace may wish to make a policy decision to allow certain devices
> to be attached, such as keyboards.

I don't understand what that sentance means.  Why wouldn't keyboards be
attached?

> Add a force_probe sysfs node to each device, which if written will
> trigger a probe even if defer_all_probes is currently true.

Why not just manually trigger the bind of the device?  I don't
understand the problem here that is being addressed, nor do I understand
how this would be used.  More explaination please.

thanks,

greg k-h

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Thread

[PATCH] Allow userspace to request device probing even if  defer_all_probes is true Kees Cook <keescook@chromium.org> - 2017-01-04 00:10 +0100
  Re: [PATCH] Allow userspace to request device probing even if  defer_all_probes is true Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-01-04 10:30 +0100
    Re: [PATCH] Allow userspace to request device probing even if  defer_all_probes is true Matthew Garrett <mjg59@coreos.com> - 2017-01-04 19:20 +0100
      Re: [PATCH] Allow userspace to request device probing even if  defer_all_probes is true Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-01-04 20:50 +0100
        Re: [PATCH] Allow userspace to request device probing even if  defer_all_probes is true Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-01-04 21:10 +0100
          Re: [PATCH] Allow userspace to request device probing even if  defer_all_probes is true Matthew Garrett <mjg59@coreos.com> - 2017-01-04 21:30 +0100
        Re: [PATCH] Allow userspace to request device probing even if  defer_all_probes is true Matthew Garrett <mjg59@coreos.com> - 2017-01-04 21:30 +0100

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