net: Refactor to use NetSendPacket instead of eth_send directly

Use this entry-point consistently across the net/ code
Use a static inline function to preserve code size

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>

include/net.h

@@ -472,7 +472,10 @@ extern void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */
 extern void	NetSetTimeout(ulong, thand_f *);/* Set timeout handler */
 
 /* Transmit "NetTxPacket" */
-extern void NetSendPacket(uchar *, int);
+static inline void NetSendPacket(uchar *pkt, int len)
+{
+	(void) eth_send(pkt, len);
+}
 
 /*
  * Transmit UDP packet, performing ARP request if needed

net/arp.c

@@ -88,7 +88,7 @@ void ArpRequest(void)
 	}
 
 	NetWriteIP(&arp->ar_tpa, NetArpWaitReplyIP);
-	(void) eth_send(NetTxPacket, eth_hdr_size + ARP_HDR_SIZE);
+	NetSendPacket(NetTxPacket, eth_hdr_size + ARP_HDR_SIZE);
 }
 
 void ArpTimeoutCheck(void)
@@ -165,7 +165,7 @@ void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len)
 		NetCopyIP(&arp->ar_tpa, &arp->ar_spa);
 		memcpy(&arp->ar_sha, NetOurEther, ARP_HLEN);
 		NetCopyIP(&arp->ar_spa, &NetOurIP);
-		(void) eth_send((uchar *)et, eth_hdr_size + ARP_HDR_SIZE);
+		NetSendPacket((uchar *)et, eth_hdr_size + ARP_HDR_SIZE);
 		return;
 
 	case ARPOP_REPLY:		/* arp reply */
@@ -198,7 +198,7 @@ void ArpReceive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len)
 			/* modify header, and transmit it */
 			memcpy(((struct ethernet_hdr *)NetArpWaitTxPacket)->
 				et_dest, NetArpWaitPacketMAC, ARP_HLEN);
-			(void) eth_send(NetArpWaitTxPacket,
+			NetSendPacket(NetArpWaitTxPacket,
 					NetArpWaitTxPacketSize);
 
 			/* no arp request pending now */

net/cdp.c

@@ -216,7 +216,7 @@ CDPSendTrigger(void)
 		chksum = 0xFFFF;
 	*cp = htons(chksum);
 
-	(void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket);
+	NetSendPacket(NetTxPacket, (uchar *)s - NetTxPacket);
 	return 0;
 }
 

net/net.c

@@ -584,13 +584,6 @@ NetSetTimeout(ulong iv, thand_f *f)
 	}
 }
 
-
-void
-NetSendPacket(uchar *pkt, int len)
-{
-	(void) eth_send(pkt, len);
-}
-
 int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport,
 		int payload_len)
 {
@@ -646,7 +639,7 @@ int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport,
 		return 1;	/* waiting */
 	} else {
 		debug("sending UDP to %pI4/%pM\n", &dest, ether);
-		eth_send(NetTxPacket, pkt_hdr_size + payload_len);
+		NetSendPacket(NetTxPacket, pkt_hdr_size + payload_len);
 		return 0;	/* transmitted */
 	}
 }

net/ping.c

@@ -112,8 +112,7 @@ void ping_receive(struct ethernet_hdr *et, struct ip_udp_hdr *ip, int len)
 		icmph->checksum = 0;
 		icmph->checksum = ~NetCksum((uchar *)icmph,
 			(len - IP_HDR_SIZE) >> 1);
-		(void) eth_send((uchar *)et,
-				ETHER_HDR_SIZE + len);
+		NetSendPacket((uchar *)et, ETHER_HDR_SIZE + len);
 		return;
 /*	default:
 		return;*/