tb_tunnel_alloc_dma 447 drivers/thunderbolt/tb.c tunnel = tb_tunnel_alloc_dma(tb, nhi_port, dst_port, xd->transmit_ring, tb_tunnel_alloc_dma 51 drivers/thunderbolt/tunnel.h struct tb_tunnel *tb_tunnel_alloc_dma(struct tb *tb, struct tb_port *nhi,