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Date:   Wed, 7 Oct 2020 09:26:50 +0200
From:   Oliver Hartkopp <>
To:     Marc Kleine-Budde <>,
Subject: Re: [PATCH can-next] can: add ISO 15765-2:2016 transport protocol

On 06.10.20 22:27, Marc Kleine-Budde wrote:
> On 9/28/20 10:04 PM, Oliver Hartkopp wrote:
>> CAN Transport Protocols offer support for segmented Point-to-Point
>> communication between CAN nodes via two defined CAN Identifiers.
>> As CAN frames can only transport a small amount of data bytes
>> (max. 8 bytes for 'classic' CAN and max. 64 bytes for CAN FD) this
>> segmentation is needed to transport longer PDUs as needed e.g. for
>> vehicle diagnosis (UDS, ISO 14229) or IP-over-CAN traffic.
>> This protocol driver implements data transfers according to
>> ISO 15765-2:2016 for 'classic' CAN and CAN FD frame types.
>> Signed-off-by: Oliver Hartkopp <>
> Applied to linux-can-next with some changes:
>> diff --git a/net/can/isotp.c b/net/can/isotp.c
>> new file mode 100644
>> index 000000000000..efed3e47b6ee
>> --- /dev/null
>> +++ b/net/can/isotp.c
>> @@ -0,0 +1,1428 @@
>> +// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
> Removed the syscall note, as it's only ment for header files. See:
>      d77cd7fefc0d can: remove "WITH Linux-syscall-note" fro
>                        SPDX tag of C files

Oh, my bad. I was working on Linus' tree when creating the patch and 
missed that cleanup I acked myself m(

> Further I've fixes some indention, a checkpatch warning and some typos.

Thanks! I did not get the point with the (id) macro - now it's clear ;-)


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