From: Dario Binacchi <dariobin@libero.it>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: linux-kernel@vger.kernel.org,
Alexander Stein <alexander.stein@systec-electronic.com>,
Federico Vaga <federico.vaga@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Oliver Hartkopp <socketcan@hartkopp.net>,
Vincent Mailhol <mailhol.vincent@wanadoo.fr>,
Wolfgang Grandegger <wg@grandegger.com>,
YueHaibing <yuehaibing@huawei.com>,
Zhang Qilong <zhangqilong3@huawei.com>,
linux-can@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH v2 3/6] can: c_can: fix control interface used by c_can_do_tx
Date: Sun, 28 Feb 2021 11:35:31 +0100 (CET) [thread overview]
Message-ID: <942251933.544595.1614508531322@mail1.libero.it> (raw)
In-Reply-To: <20210226084456.l2oztlesjzl6t2nm@pengutronix.de>
Hi Marc,
> Il 26/02/2021 09:44 Marc Kleine-Budde <mkl@pengutronix.de> ha scritto:
>
>
> On 25.02.2021 22:51:52, Dario Binacchi wrote:
> > According to commit 640916db2bf7 ("can: c_can: Make it SMP safe") let RX use
> > IF1 (i.e. IF_RX) and TX use IF2 (i.e. IF_TX).
>
> Is this a fix?
>
I think that If I consider what is described in the 640916db2bf7 commit, using
the IF_RX interface in a tx routine is wrong.
Thanks and regards
Dario
> Marc
>
> >
> > Signed-off-by: Dario Binacchi <dariobin@libero.it>
> > ---
> >
> > (no changes since v1)
> >
> > drivers/net/can/c_can/c_can.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
> > index dbcc1c1c92d6..69526c3a671c 100644
> > --- a/drivers/net/can/c_can/c_can.c
> > +++ b/drivers/net/can/c_can/c_can.c
> > @@ -732,7 +732,7 @@ static void c_can_do_tx(struct net_device *dev)
> > idx--;
> > pend &= ~(1 << idx);
> > obj = idx + C_CAN_MSG_OBJ_TX_FIRST;
> > - c_can_inval_tx_object(dev, IF_RX, obj);
> > + c_can_inval_tx_object(dev, IF_TX, obj);
> > can_get_echo_skb(dev, idx, NULL);
> > bytes += priv->dlc[idx];
> > pkts++;
> > --
> > 2.17.1
> >
> >
>
> --
> Pengutronix e.K. | Marc Kleine-Budde |
> Embedded Linux | https://www.pengutronix.de |
> Vertretung West/Dortmund | Phone: +49-231-2826-924 |
> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
next prev parent reply other threads:[~2021-02-28 10:36 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-25 21:51 [PATCH v2 0/6] can: c_can: add support to 64 message objects Dario Binacchi
2021-02-25 21:51 ` [PATCH v2 1/6] can: c_can: remove unused code Dario Binacchi
2021-02-25 21:51 ` [PATCH v2 2/6] can: c_can: fix indentation Dario Binacchi
2021-02-25 21:51 ` [PATCH v2 3/6] can: c_can: fix control interface used by c_can_do_tx Dario Binacchi
2021-02-26 8:44 ` Marc Kleine-Budde
2021-02-28 10:35 ` Dario Binacchi [this message]
2021-03-01 11:36 ` Marc Kleine-Budde
2021-03-01 17:38 ` Dario Binacchi
2021-02-25 21:51 ` [PATCH v2 4/6] can: c_can: use 32-bit write to set arbitration register Dario Binacchi
2021-02-25 21:51 ` [PATCH v2 5/6] can: c_can: prepare to up the message objects number Dario Binacchi
2021-02-26 8:33 ` Marc Kleine-Budde
2021-02-28 10:18 ` Dario Binacchi
2021-03-01 11:51 ` Marc Kleine-Budde
2021-02-26 9:21 ` Marc Kleine-Budde
2021-02-25 21:51 ` [PATCH v2 6/6] can: c_can: add support to 64 message objects Dario Binacchi
2021-02-26 8:43 ` Marc Kleine-Budde
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