From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: Drew Fustini <drew@beagleboard.org>,
linux-can@vger.kernel.org, Josh S <josh@macchina.cc>
Subject: Re: mcp251xfd on RPi 5.4 downstream
Date: Sun, 25 Oct 2020 11:58:08 +0100 [thread overview]
Message-ID: <20201025105808.2pltif74at3xwtjd@hardanger.blackshift.org> (raw)
In-Reply-To: <975a3598-c229-0b9a-df95-c9647f138a3a@hartkopp.net>
On Sun, Oct 25, 2020 at 09:49:43AM +0100, Oliver Hartkopp wrote:
> > > Thanks, will do. I am currently trying to finish up my ELC-E talk
> > > prep :) but will get back to you with the results of testing later.
> >
> > I noticed up doing a modprobe that there are several Unknown symbol errors.
> >
> > Any ideas?
> >
> > [ 358.686691] mcp251xfd: Unknown symbol can_rx_offload_del (err -2)
> > [ 358.686744] mcp251xfd: Unknown symbol can_put_echo_skb (err -2)
> > [ 358.686796] mcp251xfd: Unknown symbol can_len2dlc (err -2)
> > [ 358.686844] mcp251xfd: Unknown symbol alloc_canfd_skb (err -2)
> > [ 358.686942] mcp251xfd: Unknown symbol open_candev (err -2)
> > [ 358.687042] mcp251xfd: Unknown symbol alloc_can_skb (err -2)
> > [ 358.687093] mcp251xfd: Unknown symbol unregister_candev (err -2)
> > [ 358.687139] mcp251xfd: Unknown symbol can_change_state (err -2)
> > [ 358.687183] mcp251xfd: Unknown symbol can_change_mtu (err -2)
> > [ 358.687227] mcp251xfd: Unknown symbol can_rx_offload_add_manual (err -2)
> > [ 358.687294] mcp251xfd: Unknown symbol free_candev (err -2)
> > [ 358.687345] mcp251xfd: Unknown symbol alloc_candev_mqs (err -2)
> > [ 358.687416] mcp251xfd: Unknown symbol close_candev (err -2)
> > [ 358.687475] mcp251xfd: Unknown symbol can_bus_off (err -2)
> > [ 358.687519] mcp251xfd: Unknown symbol can_rx_offload_enable (err -2)
> > [ 358.687569] mcp251xfd: Unknown symbol can_rx_offload_get_echo_skb (err -2)
> > [ 358.687656] mcp251xfd: Unknown symbol can_dlc2len (err -2)
> > [ 358.687710] mcp251xfd: Unknown symbol alloc_can_err_skb (err -2)
> > [ 358.687773] mcp251xfd: Unknown symbol can_rx_offload_queue_sorted (err -2)
> > [ 358.687819] mcp251xfd: Unknown symbol register_candev (err -2)
> > [ 369.092608] CAN device driver interface
>
> The can-dev module has been loaded *after* mcp251xfd.
>
> Don't know why autoloading did not work on your machine but doing a
> 'modprobe can-dev' before loading the MCP driver should do it for a test.
>
> > root@raspberrypi:~# modinfo mcp251xfd
> > filename:
> > /lib/modules/5.4.72-v7l+/kernel/drivers/net/can/spi/mcp251xfd/mcp251xfd.ko
> > license: GPL v2
> > description: Microchip MCP251xFD Family CAN controller driver
> > author: Marc Kleine-Budde <mkl@pengutronix.de>
> > srcversion: 1E05EEB5939E9AB22BA2E1B
> > alias: spi:mcp251xfd
> > alias: spi:mcp2518fd
> > alias: spi:mcp2517fd
> > alias: of:N*T*Cmicrochip,mcp251xfdC*
> > alias: of:N*T*Cmicrochip,mcp251xfd
> > alias: of:N*T*Cmicrochip,mcp2518fdC*
> > alias: of:N*T*Cmicrochip,mcp2518fd
> > alias: of:N*T*Cmicrochip,mcp2517fdC*
> > alias: of:N*T*Cmicrochip,mcp2517fd
> > depends: can-dev
^^^^^^^
> > intree: Y
> > name: mcp251xfd
> > vermagic: 5.4.72-v7l+ SMP mod_unload modversions ARMv7 p2v8
The dependencies are correct. Try running a "depmod -a". If you are on a distro
with udev, manual modprobe should not be needed, as udev should load all needed
modules automatically during boot.
Marc
--
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:[~2020-10-25 10:58 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-22 3:10 mcp251xfd on RPi 5.4 downstream Drew Fustini
2020-10-22 6:00 ` Drew Fustini
2020-10-22 6:33 ` Marc Kleine-Budde
2020-10-22 18:42 ` Drew Fustini
2020-10-25 4:30 ` Drew Fustini
2020-10-25 8:49 ` Oliver Hartkopp
2020-10-25 10:58 ` Marc Kleine-Budde [this message]
2020-10-25 17:43 ` Patrick Menschel
2020-10-25 18:14 ` Marc Kleine-Budde
2020-10-25 18:42 ` Patrick Menschel
2020-10-26 1:59 ` Drew Fustini
2020-10-26 2:50 ` Drew Fustini
2020-10-26 5:16 ` Patrick Menschel
2020-10-26 7:45 ` Marc Kleine-Budde
2020-10-26 9:40 ` Marc Kleine-Budde
2020-10-26 16:51 ` Patrick Menschel
2020-10-26 17:00 ` Marc Kleine-Budde
2020-10-27 2:22 ` Drew Fustini
2020-10-27 6:35 ` Drew Fustini
2020-10-27 7:06 ` Marc Kleine-Budde
2020-10-27 18:18 ` Patrick Menschel
2020-10-27 18:22 ` Marc Kleine-Budde
2020-10-28 1:57 ` Drew Fustini
2020-10-28 3:47 ` Drew Fustini
2020-10-28 7:57 ` Marc Kleine-Budde
2020-10-31 12:27 ` Drew Fustini
2020-10-31 15:14 ` Patrick Menschel
2020-10-31 15:35 ` Patrick Menschel
2020-10-31 21:57 ` Drew Fustini
2020-11-01 22:49 ` Drew Fustini
2020-11-02 7:25 ` Marc Kleine-Budde
2020-11-02 8:18 ` Marc Kleine-Budde
[not found] ` <CAPgEAj7LcX3cb+syhtR1i3Uo1XkYYFQ_wDPV8GniaA-YwPk2Hg@mail.gmail.com>
2020-11-02 11:00 ` Marc Kleine-Budde
[not found] ` <CAPgEAj7BTJyiBg4QkKuekYH0zyrA-10dby3Lgb5qj2uiD4ZOYQ@mail.gmail.com>
2020-11-02 14:22 ` mcp251xfd: loopback test on waveshare canfd hat Marc Kleine-Budde
2020-11-02 14:35 ` Drew Fustini
2020-11-02 14:38 ` Marc Kleine-Budde
2020-11-02 17:34 ` mcp251xfd on RPi 5.4 downstream Patrick Menschel
2020-11-02 18:47 ` Patrick Menschel
2020-11-02 18:57 ` Thomas.Kopp
2020-11-02 19:32 ` Patrick Menschel
2020-11-04 18:48 ` Patrick Menschel
2020-11-05 7:15 ` Marc Kleine-Budde
2020-11-05 18:11 ` Patrick Menschel
2020-11-06 9:00 ` Marc Kleine-Budde
2020-11-06 11:31 ` Patrick Menschel
2020-11-06 11:36 ` Marc Kleine-Budde
2020-11-06 11:46 ` Patrick Menschel
2020-11-05 8:08 ` Marc Kleine-Budde
2020-11-05 8:07 ` Marc Kleine-Budde
2020-11-02 7:55 ` Marc Kleine-Budde
2020-11-02 7:26 ` Marc Kleine-Budde
2020-10-26 7:43 ` Marc Kleine-Budde
2020-11-20 12:32 ` Marc Kleine-Budde
[not found] ` <CAEf4M_B68X2T0rkaq0tqahBFPc+Gbvac7-+G0j5jd-g4j+j01g@mail.gmail.com>
2020-11-20 13:16 ` Marc Kleine-Budde
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