> On Wed, Apr 03, 2024 at 07:34:08AM +0000, Yuezhang.Mo@xxxxxxxx wrote: >> +static int exfat_file_mmap(struct file *file, struct vm_area_struct *vma) >> +{ >> + struct address_space *mapping = file->f_mapping; >> + >> + if (!mapping->a_ops->read_folio) >> + return -ENOEXEC; > > Why do you need this check? This check is always false, it's no need, I will remove it.