Re: linux-next: manual merge of the tip tree with the openrisc tree

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On Mon, Feb 20, 2017 at 12:18:05PM +0100, Peter Zijlstra wrote:
> On Sun, Feb 19, 2017 at 04:26:54PM +0900, Stafford Horne wrote:
> > On Fri, Feb 17, 2017 at 12:43:21PM +1100, Stephen Rothwell wrote:
> > > Hi all,
> > > 
> > > Today's linux-next merge of the tip tree got a conflict in:
> > > 
> > >   arch/openrisc/include/asm/Kbuild
> > > 
> > > between commit:
> > > 
> > >   157e82f58007 ("openrisc: add cmpxchg and xchg implementations")
> 
> *groan* branch delay slots...
> 
> 
> It it typically recommended to implement 1 and 2 byte versions as well.
> If the architecture doesn't support these natively, you can easily
> implement them with the 4 byte ll/sc and simply retain the other bits.

While there; I spotted commit 8ffa662370f0 ("openrisc: add optimized
atomic operations") which doesn't make any kind of sense to me.

Have you actually read the asm-generic/atomic.h file you're including?

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