… > +++ b/fs/exfat/exfat_fs.h … > +/* fatent.c */ … > +int exfat_count_dir_entries(struct super_block *sb, struct exfat_chain *p_dir); I have taken another look also at this function declaration. 1. Can any of these function parameters be marked as “const”? 2. Which source file should provide the corresponding implementation? (I did not find it in the update step “[PATCH v7 06/13] exfat: add exfat entry operations” so far.) Regards, Markus