On Mon, May 15, 2017 at 10:49:43PM +0800, kbuild test robot wrote: > Hi Kirill, > > [auto build test ERROR on linus/master] > [also build test ERROR on v4.12-rc1 next-20170515] > [cannot apply to tip/x86/core xen-tip/linux-next] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Kirill-A-Shutemov/x86-5-level-paging-enabling-for-v4-12-Part-4/20170515-202736 > config: i386-defconfig (attached as .config) > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 > reproduce: > # save the attached .config to linux build tree > make ARCH=i386 > > All error/warnings (new ones prefixed by >>): > > In file included from include/linux/cache.h:4:0, > from include/linux/printk.h:8, > from include/linux/kernel.h:13, > from mm/mmap.c:11: > mm/mmap.c: In function 'arch_get_unmapped_area_topdown': > arch/x86/include/asm/processor.h:878:50: error: 'TASK_SIZE_LOW' undeclared (first use in this function) > #define TASK_UNMAPPED_BASE __TASK_UNMAPPED_BASE(TASK_SIZE_LOW) Thanks. Fixup is below. Let me know if I need to send the full patch: diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index aaed58b03ddb..65663de9287b 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -794,6 +794,7 @@ static inline void spin_lock_prefetch(const void *x) */ #define IA32_PAGE_OFFSET PAGE_OFFSET #define TASK_SIZE PAGE_OFFSET +#define TASK_SIZE_LOW TASK_SIZE #define TASK_SIZE_MAX TASK_SIZE #define DEFAULT_MAP_WINDOW TASK_SIZE #define STACK_TOP TASK_SIZE -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>