Most of these are adding 'static', for functions that are local
to a translation unit but weren't declared static.
There's one instance of a missing include for bringing the prototype
into the translation unit, one function missing a return type (default-int),
and one which added inline to avoid it being considered unused in some sources.
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7780>
c1c1bad582