On 09/01/20 17:36, Sean Christopherson wrote: >>> You also don't want to convert the expression result to zero. >> The function is static inline bool, so it's almost certainly a mistake >> originally. The != 0 is superfluous, but this will get inlined anyway. > Ya, the bitwise-OR was added in commit 25d92081ae2f ("nEPT: Add nEPT > violation/misconfigration support"), and AFAICT it's unintentional. It may not be intentional in this case, but it's certainly the kind of code that I would have fun writing. :) Paolo