Hi Thomas, I see you mention a failure with GNUARM 7.3.1 with some build config. Can you please provide instructions on how to reproduce the build failure? As you say the failure happens with the mainline as well, that shouldn't happen and I am not seeing the failure either. Would like to try to reproduce it here if it's a genuine issue.

Change associated to this is here: https://review.trustedfirmware.org/c/trusted-firmware-m/+/1260

Hi Thomas,

Regarding the change Antonio posted and for your own information I made similar changes here (https://developer.trustedfirmware.org/T274).
I have also posted a design change about implicit enumeration casting (https://review.trustedfirmware.org/c/trusted-firmware-m/+/1040) and will send patches for that soon as well :)