Good news. I'm going to prepare a patch for mainline inclusion. Can I add
your "Tested-by: Amr Bekhit [off-list ref]" ?

Yes, that's fine.

BTW, did you realize message overflows (with "ip -d -s link show") or
related out-of-order messages in the kernel log ("dmesg").

Not sure what you mean - I have seen the "out-of-order" messages
before. Basically, I'm using a PCAN-USB to send messages continuously
to my unit using the packaged Windows software. After the unit has
been running for a while, the TX buffer gets full. I can press Esc to
clear it and then I get a "order of packets cannot be guaranteed"
message on my unit. I haven't used the ip -d -s link show command
before, I'll check it out, thanks.