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From: David Woodhouse <dwmw2@infradead.org>
To: Jason Wang <jasowang@redhat.com>, netdev@vger.kernel.org
Cc: "Eugenio Pérez" <eperezma@redhat.com>
Subject: Re: [PATCH v2 1/4] net: tun: fix tun_xdp_one() for IFF_TUN mode
Date: Thu, 24 Jun 2021 08:05:45 +0100	[thread overview]
Message-ID: <8ff25025b4c5e167c3176b4607191019e4f3729a.camel@infradead.org> (raw)
In-Reply-To: <f860d6a2-12a4-c766-ee57-db789c4a8d1f@redhat.com>

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On Thu, 2021-06-24 at 14:18 +0800, Jason Wang wrote:
> 在 2021/6/23 下午9:52, David Woodhouse 写道:
> > On Wed, 2021-06-23 at 11:45 +0800, Jason Wang wrote:
> > > As replied in previous version, it would be better if we can unify
> > > similar logic in tun_get_user().
> > 
> > So that ends up looking something like this (incremental).
> > 
> > Note the '/* XXX: frags && */' part in tun_skb_set_protocol(), because
> > the 'frags &&' was there in tun_get_user() and it wasn't obvious to me
> > whether I should be lifting that out as a separate argument to
> > tun_skb_set_protocol() or if there's a better way.
> > 
> > Either way, in my judgement this is less suitable for a stable fix and
> > more appropriate for a follow-on cleanup. But I don't feel that
> > strongly; I'm more than happy for you to overrule me on that.
> > Especially if you fix the above XXX part while you're at it :)
> 
> 
> By simply adding a boolean "pull" in tun_skb_set_protocol()?

Sure; thanks. It's been a few years since I really played with skb
handling; I was half hoping for a simpler "you don't need to
because..." answer, but that works :)


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  reply	other threads:[~2021-06-24  7:07 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-19 13:33 [PATCH] net: tun: fix tun_xdp_one() for IFF_TUN mode David Woodhouse
2021-06-21  7:00 ` Jason Wang
2021-06-21 10:52   ` David Woodhouse
2021-06-21 14:50     ` David Woodhouse
2021-06-21 20:43       ` David Woodhouse
2021-06-22  4:52         ` Jason Wang
2021-06-22  7:24           ` David Woodhouse
2021-06-22  7:51             ` Jason Wang
2021-06-22  8:10               ` David Woodhouse
2021-06-22 11:36               ` David Woodhouse
2021-06-22  4:34       ` Jason Wang
2021-06-22  4:34     ` Jason Wang
2021-06-22  7:28       ` David Woodhouse
2021-06-22  8:00         ` Jason Wang
2021-06-22  8:29           ` David Woodhouse
2021-06-23  3:39             ` Jason Wang
2021-06-24 12:39               ` David Woodhouse
2021-06-22 16:15 ` [PATCH v2 1/4] " David Woodhouse
2021-06-22 16:15   ` [PATCH v2 2/4] net: tun: don't assume IFF_VNET_HDR in tun_xdp_one() tx path David Woodhouse
2021-06-23  3:46     ` Jason Wang
2021-06-22 16:15   ` [PATCH v2 3/4] vhost_net: validate virtio_net_hdr only if it exists David Woodhouse
2021-06-23  3:48     ` Jason Wang
2021-06-22 16:15   ` [PATCH v2 4/4] vhost_net: Add self test with tun device David Woodhouse
2021-06-23  4:02     ` Jason Wang
2021-06-23 16:12       ` David Woodhouse
2021-06-24  6:12         ` Jason Wang
2021-06-24 10:42           ` David Woodhouse
2021-06-25  2:55             ` Jason Wang
2021-06-25  7:54               ` David Woodhouse
2021-06-23  3:45   ` [PATCH v2 1/4] net: tun: fix tun_xdp_one() for IFF_TUN mode Jason Wang
2021-06-23  8:30     ` David Woodhouse
2021-06-23 13:52     ` David Woodhouse
2021-06-23 17:31       ` David Woodhouse
2021-06-23 22:52         ` David Woodhouse
2021-06-24  6:37           ` Jason Wang
2021-06-24  7:23             ` David Woodhouse
2021-06-24  6:18       ` Jason Wang
2021-06-24  7:05         ` David Woodhouse [this message]
2021-06-24 12:30 ` [PATCH v3 1/5] net: add header len parameter to tun_get_socket(), tap_get_socket() David Woodhouse
2021-06-24 12:30   ` [PATCH v3 2/5] net: tun: don't assume IFF_VNET_HDR in tun_xdp_one() tx path David Woodhouse
2021-06-25  6:58     ` Jason Wang
2021-06-24 12:30   ` [PATCH v3 3/5] vhost_net: remove virtio_net_hdr validation, let tun/tap do it themselves David Woodhouse
2021-06-25  7:33     ` Jason Wang
2021-06-25  8:37       ` David Woodhouse
2021-06-28  4:23         ` Jason Wang
2021-06-28 11:23           ` David Woodhouse
2021-06-28 23:29             ` David Woodhouse
2021-06-29  3:43               ` Jason Wang
2021-06-29  6:59                 ` David Woodhouse
2021-06-29 10:49                 ` David Woodhouse
2021-06-29 13:15                   ` David Woodhouse
2021-06-30  4:39                   ` Jason Wang
2021-06-30 10:02                     ` David Woodhouse
2021-07-01  4:13                       ` Jason Wang
2021-07-01 17:39                         ` David Woodhouse
2021-07-02  3:13                           ` Jason Wang
2021-07-02  8:08                             ` David Woodhouse
2021-07-02  8:50                               ` Jason Wang
2021-07-09 15:04                               ` Eugenio Perez Martin
2021-06-29  3:21             ` Jason Wang
2021-06-24 12:30   ` [PATCH v3 4/5] net: tun: fix tun_xdp_one() for IFF_TUN mode David Woodhouse
2021-06-25  7:41     ` Jason Wang
2021-06-25  8:51       ` David Woodhouse
2021-06-28  4:27         ` Jason Wang
2021-06-28 10:43           ` David Woodhouse
2021-06-25 18:43     ` Willem de Bruijn
2021-06-25 19:00       ` David Woodhouse
2021-06-24 12:30   ` [PATCH v3 5/5] vhost_net: Add self test with tun device David Woodhouse
2021-06-25  5:00   ` [PATCH v3 1/5] net: add header len parameter to tun_get_socket(), tap_get_socket() Jason Wang
2021-06-25  8:23     ` David Woodhouse
2021-06-28  4:22       ` Jason Wang
2021-06-25 18:13   ` Willem de Bruijn
2021-06-25 18:55     ` David Woodhouse

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