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-rw-r--r--include/linux/overflow.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/overflow.h b/include/linux/overflow.h
index 0c7e3dcfe867..823a53cd9a19 100644
--- a/include/linux/overflow.h
+++ b/include/linux/overflow.h
@@ -396,7 +396,7 @@ static inline size_t __must_check size_sub(size_t minuend, size_t subtrahend)
* @name: Name for a variable to define.
* @member: Name of the array member.
* @count: Number of elements in the array; must be compile-time const.
- * @initializer: initializer expression (could be empty for no init).
+ * @initializer: Initializer expression (e.g., pass `= { }` at minimum).
*/
#define _DEFINE_FLEX(type, name, member, count, initializer...) \
_Static_assert(__builtin_constant_p(count), \
@@ -404,7 +404,7 @@ static inline size_t __must_check size_sub(size_t minuend, size_t subtrahend)
union { \
u8 bytes[struct_size_t(type, member, count)]; \
type obj; \
- } name##_u initializer; \
+ } name##_u = { .obj initializer }; \
type *name = (type *)&name##_u
/**
@@ -438,6 +438,6 @@ static inline size_t __must_check size_sub(size_t minuend, size_t subtrahend)
* Use __struct_size(@NAME) to get compile-time size of it afterwards.
*/
#define DEFINE_FLEX(TYPE, NAME, MEMBER, COUNTER, COUNT) \
- _DEFINE_FLEX(TYPE, NAME, MEMBER, COUNT, = { .obj.COUNTER = COUNT, })
+ _DEFINE_FLEX(TYPE, NAME, MEMBER, COUNT, = { .COUNTER = COUNT, })
#endif /* __LINUX_OVERFLOW_H */