Btw, using goto to different labels is no good for modern CPUs as it spoils branch predictor. In classic Linux way it's usually goto to same "end" or "fail" lab

Btw, using goto to different labels is no good for modern CPUs as it spoils branch predictor. In classic Linux way it's usually goto to same "end" or "fail" label resulting in more efficient code. Let's hope compiler will rule this out. ;)