Hi Andrew, After merging the akpm-current tree, today's linux-next build (powerpc allnoconfig) failed like this: In file included from arch/powerpc/include/asm/thread_info.h:34:0, from include/linux/thread_info.h:54, from include/asm-generic/preempt.h:4, from arch/powerpc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:59, from include/linux/spinlock.h:50, from include/linux/seqlock.h:35, from include/linux/time.h:5, from include/uapi/linux/timex.h:56, from include/linux/timex.h:56, from include/linux/sched.h:19, from arch/powerpc/kernel/asm-offsets.c:17: arch/powerpc/include/asm/pgtable.h: In function 'pte_pgprot': arch/powerpc/include/asm/pte-common.h:104:18: error: '_PAGE_SOFT_DIRTY' undeclared (first use in this function) _PAGE_EXEC | _PAGE_SOFT_DIRTY) ^ arch/powerpc/include/asm/page.h:359:22: note: in definition of macro '__pgprot' #define __pgprot(x) (x) ^ arch/powerpc/include/asm/pgtable.h:39:79: note: in expansion of macro 'PAGE_PROT_BITS' static inline pgprot_t pte_pgprot(pte_t pte) { return __pgprot(pte_val(pte) & PAGE_PROT_BITS); } ^ arch/powerpc/include/asm/pte-common.h:104:18: note: each undeclared identifier is reported only once for each function it appears in _PAGE_EXEC | _PAGE_SOFT_DIRTY) ^ arch/powerpc/include/asm/page.h:359:22: note: in definition of macro '__pgprot' #define __pgprot(x) (x) ^ arch/powerpc/include/asm/pgtable.h:39:79: note: in expansion of macro 'PAGE_PROT_BITS' static inline pgprot_t pte_pgprot(pte_t pte) { return __pgprot(pte_val(pte) & PAGE_PROT_BITS); } ^ In file included from include/linux/mm.h:55:0, from include/linux/mman.h:4, from arch/powerpc/kernel/asm-offsets.c:22: arch/powerpc/include/asm/pgtable.h: In function 'pte_mkdirty': arch/powerpc/include/asm/pgtable.h:130:32: error: '_PAGE_SOFT_DIRTY' undeclared (first use in this function) pte_val(pte) |= _PAGE_DIRTY | _PAGE_SOFT_DIRTY; return pte; } ^ In file included from arch/powerpc/include/asm/pgtable-ppc32.h:123:0, from arch/powerpc/include/asm/pgtable.h:19, from include/linux/mm.h:55, from include/linux/mman.h:4, from arch/powerpc/kernel/asm-offsets.c:22: arch/powerpc/include/asm/pgtable.h: In function 'pte_modify': arch/powerpc/include/asm/pte-common.h:97:38: error: '_PAGE_SOFT_DIRTY' undeclared (first use in this function) _PAGE_ACCESSED | _PAGE_SPECIAL | _PAGE_SOFT_DIRTY) ^ arch/powerpc/include/asm/pgtable.h:139:33: note: in expansion of macro '_PAGE_CHG_MASK' pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); ^ ./Kbuild:80: recipe for target 'arch/powerpc/kernel/asm-offsets.s' failed Caused by commit 8bd232790748 ("powerpc/mm: add page soft dirty tracking") I have reverted that commit for today. -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html