mm/compaction.c:38:25: sparse: duplicate const

tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   03586ad04b2170ee816e6936981cc7cd2aeba129
commit: a841a87a027a03b0615ffaac5a4b71223feaa5a6 [169/385] mm-compaction-enhance-tracepoint-output-for-compaction-begin-end-v4
reproduce:
  # apt-get install sparse
  git checkout a841a87a027a03b0615ffaac5a4b71223feaa5a6
  make ARCH=x86_64 allmodconfig
  make C=1 CF=-D__CHECK_ENDIAN__

mm/compaction.c:1363:37: sparse: incorrect type in initializer (different base types)
mm/compaction.c:1363:37: expected int [signed] may_enter_fs
mm/compaction.c:1363:37: got restricted gfp_t
mm/compaction.c:1364:39: sparse: incorrect type in initializer (different base types)
mm/compaction.c:1364:39: expected int [signed] may_perform_io
mm/compaction.c:1364:39: got restricted gfp_t
include/trace/events/compaction.h:87:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) include/trace/events/compaction.h:117:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1) mm/compaction.c:241:13: sparse: context imbalance in 'compact_trylock_irqsave' - wrong count at exit include/linux/spinlock.h:364:9: sparse: context imbalance in 'compact_unlock_should_abort' - unexpected unlock mm/compaction.c:447:39: sparse: context imbalance in 'isolate_freepages_block' - unexpected unlock mm/compaction.c:744:39: sparse: context imbalance in 'isolate_migratepages_block' - unexpected unlock

git remote add mmotm git://git.cmpxchg.org/linux-mmotm.git
git remote update mmotm
git checkout a841a87a027a03b0615ffaac5a4b71223feaa5a6 vim +38 mm/compaction.c

010fc29a Minchan Kim       2012-12-20  22  static inline void count_compact_event(enum vm_event_item item)
010fc29a Minchan Kim       2012-12-20  23  {
010fc29a Minchan Kim       2012-12-20  24  	count_vm_event(item);
010fc29a Minchan Kim       2012-12-20  25  }
010fc29a Minchan Kim       2012-12-20  26  
010fc29a Minchan Kim       2012-12-20  27  static inline void count_compact_events(enum vm_event_item item, long delta)
010fc29a Minchan Kim       2012-12-20  28  {
010fc29a Minchan Kim       2012-12-20  29  	count_vm_events(item, delta);
010fc29a Minchan Kim       2012-12-20  30  }
010fc29a Minchan Kim       2012-12-20  31  #else
010fc29a Minchan Kim       2012-12-20  32  #define count_compact_event(item) do { } while (0)
010fc29a Minchan Kim       2012-12-20  33  #define count_compact_events(item, delta) do { } while (0)
010fc29a Minchan Kim       2012-12-20  34  #endif
010fc29a Minchan Kim       2012-12-20  35  
ff9543fd Michal Nazarewicz 2011-12-29  36  #if defined CONFIG_COMPACTION || defined CONFIG_CMA
a841a87a Joonsoo Kim       2015-01-23  37  #ifdef CONFIG_TRACEPOINTS

a841a87a Joonsoo Kim 2015-01-23 @38 static const char const *compaction_status_string[] = {

Should be:

	static const char *const compaction_status_string[] = {

a841a87a Joonsoo Kim       2015-01-23  39  	"deferred",
a841a87a Joonsoo Kim       2015-01-23  40  	"skipped",
a841a87a Joonsoo Kim       2015-01-23  41  	"continue",
a841a87a Joonsoo Kim       2015-01-23  42  	"partial",
a841a87a Joonsoo Kim       2015-01-23  43  	"complete",
a841a87a Joonsoo Kim       2015-01-23  44  };
a841a87a Joonsoo Kim       2015-01-23  45  #endif
ff9543fd Michal Nazarewicz 2011-12-29  46  

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