powerpc/book3s_32: Fix build error with checkpoint restart

[Michael Ellerman]

On Fri, 2016-29-01 at 17:02:49 UTC, "Aneesh Kumar K.V" wrote:
> In file included from mm/vmscan.c:54:0:
> include/linux/swapops.h: In function ‘pte_to_swp_entry’:
> include/linux/swapops.h:69:2: error: implicit declaration of function ‘pte_swp_soft_dirty’ [-Werror=implicit-function-declaration]
>   if (pte_swp_soft_dirty(pte))
>   ^
> include/linux/swapops.h:70:3: error: implicit declaration of function ‘pte_swp_clear_soft_dirty’ [-Werror=implicit-function-declaration]
>    pte = pte_swp_clear_soft_dirty(pte);
> 
> We support soft dirty tracking only with book3s 64 for now.
> So change the Kconfig dependency accordingly. Also CHECKPOINT_RESTORE
> feature is not really dependent on SOFT_DIRTY. We track the dependency
> between MEM_SOFT_DIRTY and ARCH_SOFT_DIRTY through headers
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/19f97c98307115f5a6b0bbf848

cheers