[1/3] powerpc/smp: Fix NMI IPI timeout

[Michael Ellerman]

On Mon, 2018-11-26 at 02:01:05 UTC, Nicholas Piggin wrote:
> The NMI IPI timeout logic is broken, if __smp_send_nmi_ipi times out
> on the first condition, delay_us will be zero which will send it into
> the second spin loop with no timeout so it will spin forever.
> 
> Fixes: 5b73151fff63 ("powerpc: NMI IPI make NMI IPIs fully sychronous")
> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/1b5fc84aba170bdfe3533396ca9662ce

cheers