BUF_SZ
memset_io((pcch_virt_addr + pcc_cpu_data->input_offset), 0, BUF_SZ);
memset_io((pcch_virt_addr + pcc_cpu_data->input_offset), 0, BUF_SZ);
memset_io((pcch_virt_addr + pcc_cpu_data->input_offset), 0, BUF_SZ);
memset_io((pcch_virt_addr + pcc_cpu_data->output_offset), 0, BUF_SZ);
smp_store_release(&fifo->head, (fifo->head + n) & (BUF_SZ - 1));
smp_store_release(&fifo->tail, (fifo->tail + n) & (BUF_SZ - 1));
(CIRC_CNT((circ)->head, (circ)->tail, BUF_SZ))
(CIRC_CNT_TO_END((circ)->head, (circ)->tail, BUF_SZ))
(CIRC_SPACE((circ)->head, (circ)->tail, BUF_SZ))
(CIRC_SPACE_TO_END((circ)->head, (circ)->tail, BUF_SZ))
char buf[BUF_SZ];
if (!ASSERT_LE(pkt_size, BUF_SZ, "pkt_size") ||
buf_in = malloc(BUF_SZ);
buf = malloc(BUF_SZ);
topts.data_size_out = BUF_SZ;
char recv_buf[2][BUF_SZ] = {};
ASSERT_GE(BUF_SZ, buf_len);