e4a458bb1b
The macros CAST_USER_ADDR_T() and CAST_DOWN() were used for the Mac OS/X port. The first of these macros was a no-op for FreeBSD and the second is no longer used. This patch gets rid of them. It also deletes the "mbuf_t" typedef which is no longer used in the FreeBSD code from nfskpiport.h This patch should not change semantics.