On Mon, Jun 24, 2019 at 08:50:50PM +0700, Phong Tran wrote: > There are errors with cppcheck > > "Shifting signed 32-bit value by 31 bits is undefined behaviour errors" As I've already told you; your checker is bad. That is not in face undefined behaviour in the kernel. That's not to say you shouldn't clean up the code, but don't give broken checkout output as a reason.