mm/vmscan.c:677:26: error: parameter 4 ('ttu_flags') has incomplete type

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);

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0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu <[email protected]> Intel Corporation