[Yaffs] compilling yaffs error!

hi everyone: I use yaffs in my linux 2.6.19.2 kernel. In yaffs_fs.c 's code 1502 line: return get_sb_bdev(fs, flags, dev_name, data, yaffs_internal_read_super_ram); this function have 5 parameters. but in linux 2.6.19.2 kernel file include/linux/fs.h: extern int get_sb_bdev(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, int (*fill_super)(struct super_block *, void *, int), struct vfsmount *mnt); the function have 6 parameters. but in linux 2.4.18.7 kernel file include/linux/super.c static struct super_block *get_sb_bdev(struct file_system_type *fs_type, char *dev_name, int flags, void * data) the function have 4 parameters. I don't know to do. how can i do? could you teach me? thank you. in below link, have not say to do. http://www.balloonboard.org/lurker/message/20061215.171339.ae5a1197.en.html from: pqfeng. 2007.2.26 (my english very poor, i hope you don't laught at me.)

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