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From:   Devid Antonio Filoni <devid.filoni@egluetechnologies.com>
To:     Robin van der Gracht <robin@protonic.nl>,
        Oleksij Rempel <o.rempel@pengutronix.de>
Cc:     kernel@pengutronix.de, linux-can@vger.kernel.org,
        Oleksij Rempel <linux@rempel-privat.de>,
        Oliver Hartkopp <socketcan@hartkopp.net>,
        Marc Kleine-Budde <mkl@pengutronix.de>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Maxime Jayat <maxime.jayat@mobile-devices.fr>,
        kbuild test robot <lkp@intel.com>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Devid Antonio Filoni <devid.filoni@egluetechnologies.com>
Subject: [PATCH RESEND 0/2] j1939: make sure that sent DAT/CTL frames are marked as TX
Date:   Mon,  9 May 2022 19:07:44 +0200
Message-Id: <20220509170746.29893-1-devid.filoni@egluetechnologies.com>
MIME-Version: 1.0
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Hello,

If candump -x is used to dump CAN bus traffic on an interface while a J1939
socket is sending multi-packet messages, then the DAT and CTL frames
show up as RX instead of TX.

This patch series sets to generated struct sk_buff the owning struct sock
pointer so that the MSG_DONTROUTE flag can be set by recv functions.

I'm not sure that j1939_session_skb_get is needed, I think that session->sk
could be directly passed as can_skb_set_owner parameter. This patch
is based on j1939_simple_txnext function which uses j1939_session_skb_get.
I can provide an additional patch to remove the calls to
j1939_session_skb_get function if you think they are not needed.

Thank you,
Devid

Devid Antonio Filoni (2):
  can: j1939: make sure that sent DAT frames are marked as TX
  can: j1939: make sure that sent CTL frames are marked as TX

 net/can/j1939/transport.c | 69 ++++++++++++++++++++++++++++++++-------
 1 file changed, 57 insertions(+), 12 deletions(-)

-- 
2.25.1