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()

I'll provide a patch, thanks.

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