The function cast_enum_list() is used to give the same type to all elements of an enum declaration. The base case for doing this is to call cast_value() on the element, but this call is not done is the size of the element already match the size of the common type. This special case is an optimization but not an interesting one since cast_value() is not a costly function. OTOH, it somehow complicates the flow inside cast_enum_list(). So, remove the optimisation by letting cast_value() to handle all cases. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>