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