Ok my main contribution to the Linux Kernel

Ok someone asked... there are about 50 lines of code that I changed in the megaraid_sas driver. But the main one that sticks out that is a) still there and b) unchanged is this one

if (!((prev_aen.members.locale & curr_aen.members.locale) ^
curr_aen.members.locale))

Bonus points if you can actually figure out what it does :) And yes I actually wrote a truth table for this one...