[ACTIVITY] report week ending 17 Mar

Progress: * UM-2 [QEMU upstream maintainership] - went through and made estimates for a pile of JIRA tasks relating to implementing features we're missing to get to ARMv9.4 - diagnosed why --enable-werror wasn't affecting warnings from the kerneldoc docs generator, and sent a patch fixing it - some bug triage, looking for issues that ought to be fixed for 8.0 - fixed a division-by-zero bug in the cadence UART model - fixed a documentation markup mistake that made the docs look odd - investigating/fixing some more CI failures - minor bits of travel/conference related admin

-- PMM