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Date:   Tue, 9 Aug 2022 12:31:53 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Bastien Nocera <hadess@hadess.net>
Cc:     linux-usb@vger.kernel.org, bpf@vger.kernel.org,
        Alan Stern <stern@rowland.harvard.edu>,
        Benjamin Tissoires <benjamin.tissoires@redhat.com>,
        Peter Hutterer <peter.hutterer@who-t.net>,
        "Eric W . Biederman" <ebiederm@xmission.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Andrii Nakryiko <andrii@kernel.org>
Subject: Re: [PATCH 0/2] USB: core: add a way to revoke access to open USB
 devices
Message-ID: <YvI3mcXDOHzOL78r@kroah.com>
References: <20220809094300.83116-1-hadess@hadess.net>
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On Tue, Aug 09, 2022 at 11:42:58AM +0200, Bastien Nocera wrote:
> BPF list, first CC: here, I hope the commit messages are clear enough to
> understand the purpose of the patchset. If not, your comments would be
> greatly appreciated so I can make the commit messages self-explanatory.
> 
> Eric, what would be the right identifier to use for a specific user
> namespace that userspace could find out? I know the PIDs of the
> bubblewrap processes that created those user namespaces, would those be
> good enough?
> 
> Changes since v2:
> - Changed the internal API to pass a struct usb_device
> - Fixed potential busy loop in user-space when revoking access to a
>   device
> 
> Bastien Nocera (2):
>   USB: core: add a way to revoke access to open USB devices
>   usb: Implement usb_revoke() BPF function
> 
>  drivers/usb/core/devio.c | 79 ++++++++++++++++++++++++++++++++++++++--
>  drivers/usb/core/usb.c   | 51 ++++++++++++++++++++++++++
>  drivers/usb/core/usb.h   |  2 +
>  3 files changed, 128 insertions(+), 4 deletions(-)
> 
> -- 
> 2.37.1
> 

You say "changes since v2", but have no version identifier on this
series at all :(