powerpc/asm: Mark cr0 as clobbered in mftb()

Tue Jul 11 22:48:26 AEST 2017

On Thu, 2017-07-06 at 08:46:43 UTC, Oliver O'Halloran wrote:
> The workaround for the CELL timebase bug does not correctly mark cr0 as
> being clobbered. This can result in GCC making some poor^W completely
> broken optimisations.
> 
> Signed-off-by: Oliver O'Halloran <oohall at gmail.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/2400fd822f467cb4c886c879d8ad99

cheers