On Fri, Aug 11, 2017 at 10:17:34AM +0100, Dibyendu Majumdar wrote: > One thing that has puzzled me from the start is why the subtypes of > ptr_list have a different structure. Is there a reason for that? You're asking why struct ptr_list begin with : int nr; .. next; .. prev; and then only: void *list[NR]; while the real lists are declared via DECLARE_PTR_LIST() as: struct ... *list[1]; right? Only Linus can really answer to this but it seems that it is done so simply so that directly dereferencing those lists will give garbage as best, crashes most of the time to discourage. The goal being to force the use of the macros/discourage to directly access them, and so enforce the type checking. -- Luc -- To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
