Fix for mcumgr/smp over serial not adding CRC16 to packet length
For a long time the Zephyr implementation of mcumgr/smp protocol over serial has not been adding length of CRC16 to the length of the packet,
although mcumgr-cli always did so. This bug has been present due to the information not being included into documentation, which has been
I have created Zephyr issue https://github.com/zephyrproject-rtos/zephyr/issues/39546 that describes the bug, and provided the fix here
https://github.com/zephyrproject-rtos/zephyr/pull/40127; because this fix may break something in software that is already there,
I am sending this e-mail to let you all know about that fix, so that you may voice your concerns under the issue or in the PR for the fix.