linux-kernel - Re: [PATCH 8/9] rpmsg: virtio: use rpmsg

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Message-ID: <c6dc8282-7c84-730b-2946-378078b1e514@st.com>
Date:   Thu, 27 Aug 2020 09:03:04 +0200
From:   Arnaud POULIQUEN <arnaud.pouliquen@...com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>
Subject: Re: [PATCH 8/9] rpmsg: virtio: use rpmsg_ns driver to manage ns
 announcement



On 8/27/20 12:10 AM, Mathieu Poirier wrote:
> I had another very long look at this...  I haven't had the time to look in your
> next serie so the end result is not yet clear in my head.  But...
> 
> In __rpmsg_create_channel() the new code is testing for VIRTIO_RPMSG_F_NS in
> order to allocate the ops, which means that the rpdev that is fed to
> virtio_rpmsg_announce_create/destroy() are associated with a virtproc_info.
> Moreover there is a test in virtio_rpmsg_announce_create/destroy() that checks 
> for VIRTIO_RPMSG_F_NS already.  So if the rpdev was created from another
> interface than the name announcement then no message would be sent.  
> 
> So it seems to me that the last two patches could be dropped and things would
> still work properly.

Yes the last 2 patches concerns the TX part. Drop them could also be an option.
  
> 
> The good news is that I reviewed V2 today and things look good.  I will wait to
> review your next set before adding RB tags.  The down side is that having spent
> a fair amount of time on your set, I need to look at other people's work if I
> want to be fair to everyone.  As such I have to push back the review of your
> other set to next week.

That's fair! And this will give me time to have a look to the detach series. 

Thanks,
Arnaud

> 
> Thanks,
> Mathieu
>