Build failures in -next due to 'locking/atomic, arch/arc: Implement atomic_fetch_{add,sub,and,andnot,or,xor}()'

[Peter Zijlstra]

On Fri, Jun 17, 2016 at 06:04:38PM +0200, Ingo Molnar wrote:

> There's no arc compiler on korg's cross-building directory.

I always build my own cross compiler set, but it looks like the last
time I build a set ARC didn't build.

This frequently happens (that a number of archs fail to build that is).