333 	int rcnt, total;  in receive_dmsg()  local
346 		rcnt = zp->z1 - zp->z2;  in receive_dmsg()
347 		if (rcnt < 0)  in receive_dmsg()
348 			rcnt += D_FIFO_SIZE;  in receive_dmsg()
349 		rcnt++;  in receive_dmsg()
352 				df->f1, df->f2, zp->z1, zp->z2, rcnt);  in receive_dmsg()
354 		if ((rcnt > MAX_DFRAME_LEN + 3) || (rcnt < 4) ||  in receive_dmsg()
357 				debugl1(cs, "empty_fifo hfcpci packet inv. len %d or crc %d", rcnt, df->data[zp->z1]);  in receive_dmsg()
362 			df->za[df->f2 & D_FREG_MASK].z2 = (zp->z2 + rcnt) & (D_FIFO_SIZE - 1);  in receive_dmsg()
363 		} else if ((skb = dev_alloc_skb(rcnt - 3))) {  in receive_dmsg()
364 			total = rcnt;  in receive_dmsg()
365 			rcnt -= 3;  in receive_dmsg()
366 			ptr = skb_put(skb, rcnt);  in receive_dmsg()
368 			if (zp->z2 + rcnt <= D_FIFO_SIZE)  in receive_dmsg()
369 				maxlen = rcnt;	/* complete transfer */  in receive_dmsg()
375 			rcnt -= maxlen;  in receive_dmsg()
377 			if (rcnt) {	/* rest remaining */  in receive_dmsg()
380 				memcpy(ptr, ptr1, rcnt);	/* rest */  in receive_dmsg()
453 	int rcnt, real_fifo;  in main_rec_hfcpci()  local
482 		rcnt = zp->z1 - zp->z2;  in main_rec_hfcpci()
483 		if (rcnt < 0)  in main_rec_hfcpci()
484 			rcnt += B_FIFO_SIZE;  in main_rec_hfcpci()
485 		rcnt++;  in main_rec_hfcpci()
488 				bcs->channel, zp->z1, zp->z2, rcnt);  in main_rec_hfcpci()
489 		if ((skb = hfcpci_empty_fifo(bcs, bz, bdata, rcnt))) {  in main_rec_hfcpci()
493 		rcnt = bz->f1 - bz->f2;  in main_rec_hfcpci()
494 		if (rcnt < 0)  in main_rec_hfcpci()
495 			rcnt += MAX_B_FRAMES + 1;  in main_rec_hfcpci()
496 		if (cs->hw.hfcpci.last_bfifo_cnt[real_fifo] > rcnt + 1) {  in main_rec_hfcpci()
497 			rcnt = 0;  in main_rec_hfcpci()
500 		cs->hw.hfcpci.last_bfifo_cnt[real_fifo] = rcnt;  in main_rec_hfcpci()
501 		if (rcnt > 1)  in main_rec_hfcpci()
831 	int rcnt;  in receive_emsg()  local
854 		rcnt = zp->z1 - zp->z2;  in receive_emsg()
855 		if (rcnt < 0)  in receive_emsg()
856 			rcnt += B_FIFO_SIZE;  in receive_emsg()
857 		rcnt++;  in receive_emsg()
860 				zp->z1, zp->z2, rcnt);  in receive_emsg()
861 		new_z2 = zp->z2 + rcnt;		/* new position in fifo */  in receive_emsg()
865 		if ((rcnt > 256 + 3) || (count < 4) ||  in receive_emsg()
868 				debugl1(cs, "hfcpci_empty_echan: incoming packet invalid length %d or crc", rcnt);  in receive_emsg()
872 			total = rcnt;  in receive_emsg()
873 			rcnt -= 3;  in receive_emsg()
877 				maxlen = rcnt;	/* complete transfer */  in receive_emsg()
883 			rcnt -= maxlen;  in receive_emsg()
885 			if (rcnt) {	/* rest remaining */  in receive_emsg()
888 				memcpy(ptr, ptr1, rcnt);	/* rest */  in receive_emsg()
910 		rcnt = bz->f1 - bz->f2;  in receive_emsg()
911 		if (rcnt < 0)  in receive_emsg()
912 			rcnt += MAX_B_FRAMES + 1;  in receive_emsg()
913 		if (rcnt > 1)  in receive_emsg()