tree:   git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git since-3.6
head:   8695b9105cdb22a5a4b66eea52c0232cbd5e6e48
commit: b86ed88f692e53331ef7d6b6b753993df75fc59a [480/499] Reverted "mm, highmem: makes flush_all_zero_pkmaps() return index of last flushed entry"
config: i386-randconfig-b780 (attached as .config)

All error/warnings:

mm/highmem.c: In function 'kmap_flush_unused':
mm/highmem.c:157:8: error: void value not ignored as it ought to be
mm/highmem.c:158:15: error: 'PKMAP_INVALID_INDEX' undeclared (first use in this function)
mm/highmem.c:158:15: note: each undeclared identifier is reported only once for each function it appears in

vim +157 mm/highmem.c

77f6078a Randy Dunlap        2008-03-19  151   */
ce6234b5 Jeremy Fitzhardinge 2007-05-02  152  void kmap_flush_unused(void)
ce6234b5 Jeremy Fitzhardinge 2007-05-02  153  {
52ed23ca Joonsoo Kim         2012-11-01  154  	unsigned int index;
52ed23ca Joonsoo Kim         2012-11-01  155  
3297e760 Nicolas Pitre       2009-03-04  156  	lock_kmap();
52ed23ca Joonsoo Kim         2012-11-01 @157  	index = flush_all_zero_pkmaps();
52ed23ca Joonsoo Kim         2012-11-01 @158  	if (index != PKMAP_INVALID_INDEX && (index < last_pkmap_nr))
52ed23ca Joonsoo Kim         2012-11-01  159  		last_pkmap_nr = index;
3297e760 Nicolas Pitre       2009-03-04  160  	unlock_kmap();
ce6234b5 Jeremy Fitzhardinge 2007-05-02  161  }

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0-DAY kernel build testing backend         Open Source Technology Center
Fengguang Wu, Yuanhan Liu                              Intel Corporation