On Fri, Feb 05, 2021 at 02:57:27PM +0800, Shengjiu Wang wrote:

> +	/* TYPE C is notification from M core */
> +	if (r_msg->header.type == MSG_TYPE_C) {
> +		if (r_msg->header.cmd == TX_PERIOD_DONE) {

> +		} else if (r_msg->header.cmd == RX_PERIOD_DONE) {

A switch statement would be clearer and more extensible...

> +	/* TYPE B is response msg */
> +	if (r_msg->header.type == MSG_TYPE_B) {
> +		memcpy(&info->r_msg, r_msg, sizeof(struct rpmsg_r_msg));
> +		complete(&info->cmd_complete);
> +	}

...and make this flow clearer for example.  Do we need to warn on
unknown messages?