ldc_read
int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size);
err = ldc_read(lp, dp->rcv_buf, sizeof(*tag));
err = ldc_read(lp, tag + 1, tag->len);
EXPORT_SYMBOL(ldc_read);
err = ldc_read(vio->lp, &msgbuf, sizeof(msgbuf));
err = ldc_read(vio->lp, &msgbuf, sizeof(msgbuf));
rv = ldc_read(vio->lp, &pkt, sizeof(pkt));