MGMT_MAX_PF_BUF_SIZE
if (offset + seg_len > MGMT_MAX_PF_BUF_SIZE)
recv_msg->msg = kzalloc(MGMT_MAX_PF_BUF_SIZE, GFP_KERNEL);
(MGMT_MAX_PF_BUF_SIZE / MGMT_SEG_LEN_MAX + 1)
pf_to_mgmt->mgmt_ack_buf = kzalloc(MGMT_MAX_PF_BUF_SIZE, GFP_KERNEL);