Re: linux-next: manual merge of the tip tree with the openrisc tree
From: Peter Zijlstra
Date: Mon Feb 20 2017 - 06:44:12 EST
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.