net: Refactor packet length computations

[pandora-u-boot.git] / net / rarp.c

diff --git a/net/rarp.c b/net/rarp.c
index da50961..a715c2c 100644 (file)
--- a/net/rarp.c
+++ b/net/rarp.c
@@ -88,11 +88,13 @@ void RarpRequest(void)
 {
        uchar *pkt;
        struct arp_hdr *rarp;
+       int eth_hdr_size;
 
        printf("RARP broadcast %d\n", ++RarpTry);
        pkt = NetTxPacket;
 
-       pkt += NetSetEther(pkt, NetBcastAddr, PROT_RARP);
+       eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_RARP);
+       pkt += eth_hdr_size;
 
        rarp = (struct arp_hdr *)pkt;
 
@@ -108,7 +110,7 @@ void RarpRequest(void)
        /* dest IP addr set to broadcast */
        memset(&rarp->ar_data[16], 0xff,        4);
 
-       NetSendPacket(NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE);
+       NetSendPacket(NetTxPacket, eth_hdr_size + ARP_HDR_SIZE);
 
        NetSetTimeout(TIMEOUT, RarpTimeout);
 }