rpmsg_hdr
struct rpmsg_hdr *msg;
if (len > vrp->buf_size - sizeof(struct rpmsg_hdr)) {
return vch->vrp->buf_size - sizeof(struct rpmsg_hdr);
struct rpmsg_hdr *msg, unsigned int len)
msg_len > (len - sizeof(struct rpmsg_hdr))) {
struct rpmsg_hdr *msg;