[14/21] powerpc: Add missing prototype for arch_irq_work_raise

[Michael Ellerman]

On Sun, 2018-02-25 at 17:22:29 UTC, Mathieu Malaterre wrote:
> In commit 4f8b50bbbe63 ("irq_work, ppc: Fix up arch hooks") a new function
> arch_irq_work_raise was added without a prototype in header irq_work.h.
> 
> Fix the following warning (treated as error in W=1):
> 
>   CC      arch/powerpc/kernel/time.o
> arch/powerpc/kernel/time.c:523:6: error: no previous prototype for ‘arch_irq_work_raise’ [-Werror=missing-prototypes]
>  void arch_irq_work_raise(void)
>       ^~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> 
> Signed-off-by: Mathieu Malaterre <malat at debian.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/f5246862f82f1e16bbf84cda4cddf2

cheers