Hi Minchan, FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git since-3.5 head: d64f22e5761b1e367ba5d1e04d2fe5e0283aecbc commit: a653bcafb3ac904b44dacddf6be188f5290c4732 [112/137] mm: cma: discard clean pages during contiguous allocation instead of migration config: m32r-m32104ut_defconfig All related error/warning messages: mm/vmscan.c:680:11: warning: 'enum ttu_flags' declared inside parameter list [enabled by default] mm/vmscan.c:680:11: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] mm/vmscan.c:677:26: error: parameter 4 ('ttu_flags') has incomplete type mm/vmscan.c:674:22: warning: function declaration isn't a prototype [-Wstrict-prototypes] mm/vmscan.c: In function 'reclaim_clean_pages_from_list': mm/vmscan.c:987:5: error: 'TTU_UNMAP' undeclared (first use in this function) mm/vmscan.c:987:5: note: each undeclared identifier is reported only once for each function it appears in mm/vmscan.c:987:15: error: 'TTU_IGNORE_ACCESS' undeclared (first use in this function) mm/vmscan.c: In function 'shrink_inactive_list': mm/vmscan.c:1312:56: error: 'TTU_UNMAP' undeclared (first use in this function) vim +677 mm/vmscan.c 672 * shrink_page_list() returns the number of reclaimed pages 673 */ 674 static unsigned long shrink_page_list(struct list_head *page_list, 675 struct zone *zone, 676 struct scan_control *sc, > 677 enum ttu_flags ttu_flags, 678 unsigned long *ret_nr_dirty, 679 unsigned long *ret_nr_writeback, 680 bool force_reclaim) 681 { 682 LIST_HEAD(ret_pages); --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu <wfg@xxxxxxxxxxxxxxx> Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html