[1/3] powerpc/xive: Fix trying to "push" an already active pool VP

[Michael Ellerman]

On Wed, 2018-04-11 at 05:17:59 UTC, Benjamin Herrenschmidt wrote:
> When setting up a CPU, we "push" (activate) a pool VP for it.
> 
> However it's an error to do so if it already has an active
> pool VP.
> 
> This happens when doing soft CPU hotplug on powernv since we
> don't tear down the CPU on unplug. The HW flags the error which
> gets captured by the diagnostics.
> 
> Fix this by making sure to "pull" out any already active pool
> first.
> 
> Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>

Patch 1 applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/b32e56e5a87a1f9243db92bc7a5df0

cheers