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ethernet: eth_stellaris: data_len should not include header size #15241

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Apr 11, 2019
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ethernet: eth_stellaris: data_len should not include header size #15241

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7 changes: 4 additions & 3 deletions drivers/ethernet/eth_stellaris.c
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Original file line number Diff line number Diff line change
Expand Up @@ -65,10 +65,11 @@ static int eth_stellaris_send(struct device *dev, struct net_pkt *pkt)
u16_t i, data_len;

/* Frame transmission
* First two bytes are data_len for frame,
* Initially send the data_len
*
* First two bytes is the length of the frame, exclusive of
* the header length.
*/
data_len = net_pkt_get_len(pkt);
data_len = net_pkt_get_len(pkt) - sizeof(struct net_eth_hdr);
eth_stellaris_send_byte(dev, data_len & 0xff);
eth_stellaris_send_byte(dev, (data_len & 0xff00) >> 8);

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