343  * flex_array_size() - Calculate size of a flexible array member
346  * @member: Name of the flexible array member.
349  * Calculates size of a flexible array of @count number of @member
354 #define flex_array_size(p, member, count)				\  argument
356 		(count) * sizeof(*(p)->member) + __must_be_array((p)->member),	\
357 		size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member)))
362  * @member: Name of the array member.
366  * array of @count number of @member elements.
370 #define struct_size(p, member, count)					\  argument
372 		sizeof(*(p)) + flex_array_size(p, member, count),	\
373 		size_add(sizeof(*(p)), flex_array_size(p, member, count)))
378  * @member: Name of the array member.
382  * array of @count number of @member elements. Prefer using struct_size()
388 #define struct_size_t(type, member, count)					\  argument
389 	struct_size((type *)NULL, member, count)
397  * @member: Name of the array member.
401 #define _DEFINE_FLEX(type, name, member, count, initializer...)			\  argument
405 		u8 bytes[struct_size_t(type, member, count)];			\
412  * flexible array member, when it does not have a __counted_by annotation.
416  * @member: Name of the array member.
420  * flexible array member.
423 #define DEFINE_RAW_FLEX(type, name, member, count)	\  argument
424 	_DEFINE_FLEX(type, name, member, count, = {})
428  * flexible array member.
432  * @MEMBER: Name of the array member.
433  * @COUNTER: Name of the __counted_by member.
437  * flexible array member.
440 #define DEFINE_FLEX(TYPE, NAME, MEMBER, COUNTER, COUNT)	\  argument
441 	_DEFINE_FLEX(TYPE, NAME, MEMBER, COUNT, = { .obj.COUNTER = COUNT, })