158 #define EXT_FIRST_EXTENT(__hdr__) \  argument
159 	((struct ext4_extent *) (((char *) (__hdr__)) +		\
161 #define EXT_FIRST_INDEX(__hdr__) \  argument
162 	((struct ext4_extent_idx *) (((char *) (__hdr__)) +	\
167 #define EXT_LAST_EXTENT(__hdr__) \  argument
168 	(EXT_FIRST_EXTENT((__hdr__)) + le16_to_cpu((__hdr__)->eh_entries) - 1)
169 #define EXT_LAST_INDEX(__hdr__) \  argument
170 	(EXT_FIRST_INDEX((__hdr__)) + le16_to_cpu((__hdr__)->eh_entries) - 1)
171 #define EXT_MAX_EXTENT(__hdr__) \  argument
172 	(EXT_FIRST_EXTENT((__hdr__)) + le16_to_cpu((__hdr__)->eh_max) - 1)
173 #define EXT_MAX_INDEX(__hdr__) \  argument
174 	(EXT_FIRST_INDEX((__hdr__)) + le16_to_cpu((__hdr__)->eh_max) - 1)