__ackvec_idx_sub 121 net/dccp/ackvec.c return __ackvec_idx_sub(av->av_buf_tail, av->av_buf_head); __ackvec_idx_sub 220 net/dccp/ackvec.c av->av_buf_head = __ackvec_idx_sub(av->av_buf_head, 1); __ackvec_idx_sub 232 net/dccp/ackvec.c av->av_buf_head = __ackvec_idx_sub(av->av_buf_head, num_packets);