diff options
| author | Joe Hershberger <joe.hershberger@ni.com> | 2012-05-23 07:59:09 +0000 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2012-05-23 17:46:19 -0500 |
| commit | 00f33268ab02984a5fa8b3783b6096d4ce6c48c7 (patch) | |
| tree | 1d2bf41e3a7f6512f2231d65335f95845885a380 /net/rarp.c | |
| parent | 9214637a56abd27863824bd53e602b7721b3cda6 (diff) | |
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>
Diffstat (limited to 'net/rarp.c')
| -rw-r--r-- | net/rarp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/rarp.c b/net/rarp.c index da50961d630..a715c2c7fd6 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); } |