[mmotm:master 69/200] include/trace/events/huge_memory.h:46:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1)

[kbuild test robot <fengguang.wu@intel.com>]

tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   cf181493809bf6f55f40f0380d4e2f10e2588544
commit: 7d302a9cb0d503a0fd8396bd423e3e57c54c6751 [69/200] mm: add tracepoint for scanning pages
reproduce:
  # apt-get install sparse
  git checkout 7d302a9cb0d503a0fd8396bd423e3e57c54c6751
  make ARCH=x86_64 allmodconfig
  make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> include/trace/events/huge_memory.h:46:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1)
>> include/trace/events/huge_memory.h:46:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1)
   include/trace/events/huge_memory.h:104:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1)
   include/trace/events/huge_memory.h:104:1: sparse: odd constant _Bool cast (ffffffffffffffff becomes 1)
   mm/huge_memory.c:1501:28: sparse: context imbalance in 'zap_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1569:28: sparse: context imbalance in 'move_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1599:36: sparse: context imbalance in 'change_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1625:5: sparse: context imbalance in '__pmd_trans_huge_lock' - different lock contexts for basic block
   mm/huge_memory.c:1652:7: sparse: context imbalance in 'page_check_address_pmd' - different lock contexts for basic block
   mm/huge_memory.c:1721:17: sparse: context imbalance in '__split_huge_page_splitting' - unexpected unlock
   arch/x86/include/asm/paravirt.h:515:17: sparse: context imbalance in '__split_huge_page_map' - unexpected unlock

vim +46 include/trace/events/huge_memory.h

    30		EM( SCAN_DEL_PAGE_LRU,		"could_not_delete_page_from_lru")\
    31		EM( SCAN_ALLOC_HUGE_PAGE_FAIL,	"alloc_huge_page_failed")	\
    32		EMe( SCAN_CGROUP_CHARGE_FAIL,	"ccgroup_charge_failed")
    33	
    34	#undef EM
    35	#undef EMe
    36	#define EM(a, b)	TRACE_DEFINE_ENUM(a);
    37	#define EMe(a, b)	TRACE_DEFINE_ENUM(a);
    38	
    39	SCAN_STATUS
    40	
    41	#undef EM
    42	#undef EMe
    43	#define EM(a, b)	{a, b},
    44	#define EMe(a, b)	{a, b}
    45	
  > 46	TRACE_EVENT(mm_khugepaged_scan_pmd,
    47	
    48		TP_PROTO(struct mm_struct *mm, unsigned long pfn, bool writable,
    49			 bool referenced, int none_or_zero, int status),
    50	
    51		TP_ARGS(mm, pfn, writable, referenced, none_or_zero, status),
    52	
    53		TP_STRUCT__entry(
    54			__field(struct mm_struct *, mm)

---
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