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Date:   Thu, 12 Dec 2019 11:05:13 -0800 (PST)
Message-Id: <20191212.110513.1770889236741616001.davem@davemloft.net>
To:     pdurrant@amazon.com
Cc:     xen-devel@lists.xenproject.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, wei.liu@kernel.org
Subject: Re: [PATCH net-next] xen-netback: get rid of old udev related code
From:   David Miller <davem@davemloft.net>
In-Reply-To: <20191212135406.26229-1-pdurrant@amazon.com>
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From: Paul Durrant <pdurrant@amazon.com>
Date: Thu, 12 Dec 2019 13:54:06 +0000

> In the past it used to be the case that the Xen toolstack relied upon
> udev to execute backend hotplug scripts. However this has not been the
> case for many releases now and removal of the associated code in
> xen-netback shortens the source by more than 100 lines, and removes much
> complexity in the interaction with the xenstore backend state.
> 
> NOTE: xen-netback is the only xenbus driver to have a functional uevent()
>       method. The only other driver to have a method at all is
>       pvcalls-back, and currently pvcalls_back_uevent() simply returns 0.
>       Hence this patch also facilitates further cleanup.
> 
> Signed-off-by: Paul Durrant <pdurrant@amazon.com>

If userspace ever used this stuff, I seriously doubt you can remove this
even if it hasn't been used in 5+ years.

Sorry.