From 00f33268ab02984a5fa8b3783b6096d4ce6c48c7 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Wed, 23 May 2012 07:59:09 +0000 Subject: 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 Acked-by: Simon Glass Acked-by: Mike Frysinger --- net/rarp.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'net/rarp.c') diff --git a/net/rarp.c b/net/rarp.c index da50961d63..a715c2c7fd 100644 --- 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); } -- cgit v1.2.1