linux-kernel - Re: [PATCH v3] usb/hcd: Send a uevent signaling that the host controller had died

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Message-ID: <20190419121624.GA12209@kroah.com>
Date:   Fri, 19 Apr 2019 14:16:24 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Raul E Rangel <rrangel@...omium.org>
Cc:     linux-usb@...r.kernel.org, groeck@...omium.org, oneukum@...e.com,
        djkurtz@...omium.org, zwisler@...omium.org,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Dmitry Torokhov <dtor@...omium.org>,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Johan Hovold <johan@...nel.org>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>
Subject: Re: [PATCH v3] usb/hcd: Send a uevent signaling that the host
 controller had died

On Wed, Apr 17, 2019 at 01:03:16PM -0600, Raul E Rangel wrote:
> This change will send an OFFLINE event to udev with the ERROR=DEAD
> environment variable set when the HC dies.
> 
> By notifying user space the appropriate policies can be applied.
> i.e.,
>  * Collect error logs.
>  * Notify the user that USB is no longer functional.
>  * Perform a graceful reboot.
> 
> Signed-off-by: Raul E Rangel <rrangel@...omium.org>

I'll wait for a v4 to fix up the bugs 0-day found in this before
reviewing :)

thanks,

greg k-h