MCLGETL
m = MCLGETL(NULL, M_DONTWAIT, MCLBYTES);
MCLGETL(m, M_DONTWAIT, IWX_RBUF_SIZE);
m = MCLGETL(NULL, M_DONTWAIT, totlen);
MCLGETL(m, M_DONTWAIT, IWM_RBUF_SIZE);
m = MCLGETL(NULL, M_DONTWAIT, totlen);
m1 = MCLGETL(NULL, M_DONTWAIT, WPI_RBUF_SIZE);
data->m = MCLGETL(NULL, M_DONTWAIT, WPI_RBUF_SIZE);
MCLGETL(m, wait, len);