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net: Refactor packet length computations
Save the length when it is computed instead of forgetting it and subtracting pointers to figure it out again. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
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9214637a56
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3 changed files with 16 additions and 10 deletions
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@ -42,6 +42,7 @@ static int ping_send(void)
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{
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static uchar mac[6];
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uchar *pkt;
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int eth_hdr_size;
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/* XXX always send arp request */
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@ -53,13 +54,13 @@ static int ping_send(void)
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NetArpWaitPacketMAC = mac;
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pkt = NetArpWaitTxPacket;
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pkt += NetSetEther(pkt, mac, PROT_IP);
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eth_hdr_size = NetSetEther(pkt, mac, PROT_IP);
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pkt += eth_hdr_size;
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set_icmp_header(pkt, NetPingIP);
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/* size of the waiting packet */
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NetArpWaitTxPacketSize =
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(pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + 8;
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NetArpWaitTxPacketSize = eth_hdr_size + IP_ICMP_HDR_SIZE;
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/* and do the ARP request */
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NetArpWaitTry = 1;
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