On Fri, Aug 07, 2015 at 02:26:22PM -0700, Andrew Morton wrote: > On Fri, 7 Aug 2015 22:24:33 +0800 kbuild test robot <fengguang.wu@xxxxxxxxx> wrote: > > > tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > > head: e6455bc5b91f41f842f30465c9193320f0568707 > > commit: cbba4e22584984bffccd07e0801fd2b8ec1ecf5f [6277/6751] Move /proc/kpageidle to /sys/kernel/mm/page_idle/bitmap > > config: blackfin-allmodconfig (attached as .config) > > reproduce: > > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross > > chmod +x ~/bin/make.cross > > git checkout cbba4e22584984bffccd07e0801fd2b8ec1ecf5f > > # save the attached .config to linux build tree > > make.cross ARCH=blackfin > > > > All error/warnings (new ones prefixed by >>): > > > > mm/page_idle.c: In function 'page_idle_clear_pte_refs_one': > > mm/page_idle.c:67:4: error: implicit declaration of function 'pmdp_test_and_clear_young' [-Werror=implicit-function-declaration] > > mm/page_idle.c:71:3: error: implicit declaration of function 'page_check_address' [-Werror=implicit-function-declaration] > > Yeah. This? > ... > config IDLE_PAGE_TRACKING > bool "Enable idle page tracking" > - depends on SYSFS > + depends on SYSFS && MMU Yes, that's it. Thank you. > select PAGE_EXTENSION if !64BIT > help > This feature allows to estimate the amount of user pages that have -- 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>