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net_device: tweak 'pbuf chain' implementation

This commit is contained in:
Peter Lawrence 2020-10-24 17:29:47 -05:00
parent 43cb5fabfd
commit f5b72f5796
1 changed files with 3 additions and 1 deletions
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4
src/class/net/net_device.c
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@ -374,8 +374,8 @@ static void handle_incoming_packet(uint32_t len)
if (p)
{
/* pbuf_alloc() has already initialized struct; all we need to do is copy the data */
memcpy(p->payload, pnt, size);
p->len = size;
accepted = tud_network_recv_cb(p);
if (!accepted) pbuf_free(p);
@ -441,11 +441,13 @@ void tud_network_xmit(struct pbuf *p)
len = (_netd_itf.ecm_mode) ? 0 : CFG_TUD_NET_PACKET_PREFIX_LEN;
data = transmitted + len;
/* traverse the "pbuf chain"; see ./lwip/src/core/pbuf.c for more info */
for(q = p; q != NULL; q = q->next)
{
memcpy(data, (char *)q->payload, q->len);
data += q->len;
len += q->len;
if (q->len == q->tot_len) break;
}
if (!_netd_itf.ecm_mode)