As new devices keep getting released with a stronger focus on upstream support, CI systems like KernelCI are becoming essential to quickly detect any regressions introduced and to allow long-term support to be sustainable. In this talk, I will show how several regressions were detected in the process of upstreaming support for a device, how KernelCI could have automatically detected them, what we're doing to make that happen going forward, and where test coverage still has room for growth.