Re: 6.19.0-rc6 CAN regression

From: Oliver Hartkopp

Date: Mon Jan 19 2026 - 02:52:28 EST


Hello Francesco,

On 19.01.26 08:17, Francesco Dolcini wrote:
Hello,
there is some issue with CAN on the latest linux 6.19 RC,
canfdtest fails with `send failed: Invalid argument` fails on various
SoC (NXP i.MX8MP, i.MX8QM, i.MX6 ... and TI AM62 and maybe more).

Is this known and already being addressed? I have seen some recent PR
and patches, but I am not sure they are fixing this issue.

Yes, this is already fixed here:

https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git/log/?h=testing

in this patch:
"can: dev: alloc_candev_mqs(): add missing default CAN capabilities"

https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git/commit/?h=testing&id=375629c92fd842bc2a229bb34c4453f62e097169

The PR is waiting for upstream:
https://lore.kernel.org/linux-can/20260116200323.366877-1-mkl@xxxxxxxxxxxxxx/

When you apply the above patch, it should just work again.

Best regards,
Oliver