linux-kernel - Re: [PATCH net-next] nfc: Add a virtual nci device driver

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Message-ID: <20210104114842.2eccef83@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Mon, 4 Jan 2021 11:48:42 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Bongsu Jeon <bongsu.jeon2@...il.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-nfc@...ts.01.org,
        Bongsu Jeon <bongsu.jeon@...sung.com>
Subject: Re: [PATCH net-next] nfc: Add a virtual nci device driver

On Thu, 31 Dec 2020 14:22:45 +0900 Bongsu Jeon wrote:
> On Tue, Dec 29, 2020 at 6:16 AM Jakub Kicinski <kuba@...nel.org> wrote:
> >
> > On Mon, 28 Dec 2020 18:45:07 +0900 Bongsu Jeon wrote:  
> > > From: Bongsu Jeon <bongsu.jeon@...sung.com>
> > >
> > > A NCI virtual device can be made to simulate a NCI device in user space.
> > > Using the virtual NCI device, The NCI module and application can be
> > > validated. This driver supports to communicate between the virtual NCI
> > > device and NCI module.
> > >
> > > Signed-off-by: Bongsu Jeon <bongsu.jeon@...sung.com>  
> >
> > net-next is still closed:
> >
> > http://vger.kernel.org/~davem/net-next.html
> >
> > Please repost in a few days.
> >
> > As far as the patch goes - please include some tests for the NCI/NFC
> > subsystem based on this virtual device, best if they live in tree under
> > tools/testing/selftest.  
> 
> thank you for your answer.
> I think that neard(NFC deamon) is necessary to test the NCI subsystem
> meaningfully.
> The NCI virtual device in user space can communicate with neard
> through this driver.
> Is it enough to make NCI virtual device at tools/nfc for some test?

I'm not sure if I understand. Are you asking if it's okay for the test
or have a dependency on neard?