Re: [RFC PATCH] PPC32: Fix build failure caused by missing dirty pte handlers

On Mon, 2016-01-25 at 09:22 -0500, Pranith Kumar wrote:

In 4.5-rc1, I am getting a build failure as follows:

mm/memory.c: In function ‘do_swap_page’:
mm/memory.c:2573:9: error: implicit declaration of function ‘pte_mksoft_dirty’
[-Werror=implicit-function-declaration]
   pte = pte_mksoft_dirty(pte);

The soft dirty pte handlers are declared only for PPC64 on PPC_BOOK3S in
arch/powerpc/include/asm/book3s/64/hash.h and missing in the 32-bit arch.

Avoid this error by not setting HAVE_ARCH_SOFT_DIRTY for 32-bit system.

It's building for me, what config are you using?

http://kisskb.ellerman.id.au/kisskb/buildresult/12597204/

cheers