On Tue, 2016-09-20 at 15:39 +0200, Jiri Pirko wrote: > I see. So how to silent the warning? >
We can replace the atomic_add_return() and use a loop around atomic_read() and atomic_cmpxhg() This would change the nice property of x86 xadd into a loop. Or we also could fallback to random generation if the atomic_cmpxchg() fails. I'll provide a patch, thanks.