struct psp_context *psp = hdcp->config.psp.handle;
        struct ta_hdcp_shared_memory *hdcp_cmd;
        struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
-       struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
        struct mod_hdcp_display *display = get_first_added_display(hdcp);
 
        hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
        memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
 
        msg_in = &hdcp_cmd->in_msg.hdcp2_prepare_process_authentication_message_v2;
-       msg_out = &hdcp_cmd->out_msg.hdcp2_prepare_process_authentication_message_v2;
 
        hdcp2_message_init(hdcp, msg_in);
 
        struct psp_context *psp = hdcp->config.psp.handle;
        struct ta_hdcp_shared_memory *hdcp_cmd;
        struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_input_v2 *msg_in;
-       struct ta_hdcp_cmd_hdcp2_process_prepare_authentication_message_output_v2 *msg_out;
        uint8_t i;
 
        hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.hdcp_shared_buf;
        memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory));
 
        msg_in = &hdcp_cmd->in_msg.hdcp2_prepare_process_authentication_message_v2;
-       msg_out = &hdcp_cmd->out_msg.hdcp2_prepare_process_authentication_message_v2;
 
        hdcp2_message_init(hdcp, msg_in);