From: Oliver Hartkopp <socketcan@hartkopp.net>
To: Vincent MAILHOL <mailhol.vincent@wanadoo.fr>,
Marc Kleine-Budde <mkl@pengutronix.de>,
linux-can@vger.kernel.org
Cc: kernel@pengutronix.de, "Stéphane Grosjean" <s.grosjean@peak-system.com>
Subject: Re: [net-rfc 04/16] can: dev: can_get_len(): add a helper function to get the correct length of Classical frames
Date: Wed, 21 Oct 2020 11:48:39 +0200 [thread overview]
Message-ID: <ec145768-3efb-1abd-718b-4899f08fe302@hartkopp.net> (raw)
In-Reply-To: <2711ea6f-e1ce-c3f9-dd98-83142bd33fc9@hartkopp.net>
Answering myself ...
On 21.10.20 11:21, Oliver Hartkopp wrote:
> With CAN_CTRLMODE_RAW_DLC enabled the CAN driver would ...
>
> - fill can_dlc and raw_dlc at reception time
> - will use raw_dlc instead of can_dlc at tx time
> - will use can_dlc if raw_dlc == 0 at tx time
To be more compatible to non raw dlc CAN frame sources the tx handling
could also be like this:
if ((can_dlc == CAN_MAX_DLEN) &&
(raw_dlc >= CAN_MAX_DLC && raw_dlc <= CAN_MAX_RAW_DLC))
=> use raw_dlc
next prev parent reply other threads:[~2020-10-21 9:48 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-19 19:05 [RFC]: can 2020-10-19 Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 01/16] can: proc: can_remove_proc(): silence remove_proc_entry warning Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 02/16] can: rx-offload: don't call kfree_skb() from IRQ context Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 03/16] can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard " Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 04/16] can: dev: can_get_len(): add a helper function to get the correct length of Classical frames Marc Kleine-Budde
2020-10-19 20:35 ` Oliver Hartkopp
2020-10-20 6:35 ` Marc Kleine-Budde
2020-10-20 11:30 ` Vincent Mailhol
2020-10-20 11:48 ` Marc Kleine-Budde
2020-10-20 12:38 ` Oliver Hartkopp
2020-10-20 15:02 ` Marc Kleine-Budde
2020-10-20 16:07 ` Vincent Mailhol
2020-10-20 17:04 ` Oliver Hartkopp
2020-10-20 18:50 ` Marc Kleine-Budde
2020-10-21 0:52 ` Vincent Mailhol
2020-10-21 6:23 ` Vincent MAILHOL
2020-10-21 7:11 ` Joakim Zhang
2020-10-21 7:21 ` Marc Kleine-Budde
2020-10-21 7:48 ` Joakim Zhang
2020-10-21 9:21 ` Oliver Hartkopp
2020-10-21 9:48 ` Oliver Hartkopp [this message]
2020-10-21 11:55 ` Vincent MAILHOL
2020-10-21 17:52 ` Oliver Hartkopp
2020-10-22 3:30 ` Vincent MAILHOL
2020-10-22 7:15 ` Oliver Hartkopp
2020-10-22 12:23 ` Vincent MAILHOL
2020-10-22 13:28 ` Oliver Hartkopp
2020-10-22 15:46 ` Vincent MAILHOL
2020-10-22 17:06 ` Oliver Hartkopp
2020-10-23 10:36 ` Vincent MAILHOL
2020-10-23 16:47 ` Oliver Hartkopp
2020-10-24 5:25 ` Vincent MAILHOL
2020-10-24 11:31 ` Oliver Hartkopp
2020-10-19 19:05 ` [net-rfc 05/16] can: dev: __can_get_echo_skb(): fix the returned length of CAN frame Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 06/16] can: can_create_echo_skb(): fix echo skb generation: always use skb_clone() Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 07/16] can: j1939: j1939_sk_bind(): return failure if netdev is down Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 08/16] can: isotp: Explain PDU in CAN_ISOTP help text Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 09/16] can: isotp: enable RX timeout handling in listen-only mode Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 10/16] can: ti_hecc: add missed clk_disable_unprepare() in error path Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 11/16] can: xilinx_can: handle failure cases of pm_runtime_get_sync Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 12/16] can: peak_usb: fix timestamp wrapping Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 13/16] can: peak_canfd: fix echo management when loopback is on Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 14/16] can: mcp251xfd: mcp251xfd_regmap_crc_read(): increase severity of CRC read error messages Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 15/16] can: mcp251xfd: mcp251xfd_regmap_nocrc_read(): fix semicolon.cocci warnings Marc Kleine-Budde
2020-10-19 19:05 ` [net-rfc 16/16] can: mcp251xfd: remove unneeded break Marc Kleine-Budde
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