Hi, I wanted to understand some modules in the kernel and how their data structures are interconnected. So I am not interested in all data structures of the kernel but something more like net/bridge/br_private.h.
With C++ I would just tell doxygen to generate uml-like class diagrams. But the kernel code is C and doesn't use templates. So it is sometimes quite hard to find out what is behind a struct list_head or an struct rb_root. Beside the missing information about the type of objects stored in the dynamic data structure, it is also sometimes not easy to know if a struct list_head is now an anchor for this item in a list or if this is the root/head of the list. So my questions would be: 1. is there a standard (machine readable?) how to correctly document (kernel-doc?) in the code if a struct list_head is the head/root of a list or the anchor of the item in a list? 2. is there a standard (machine readable?) how to correctly document the type of objects stored in a list/hlist/rbtree? 3. is there already some kind of tool to visualize data structures from the Linux kernel which supports list/hlist/rbtree and shows it in the diagram (image, graphviz, ...) as 1:n relation?
