anchao commented on code in PR #7616:
URL: https://github.com/apache/nuttx/pull/7616#discussion_r1037777406
##########
net/devif/devif_iobsend.c:
##########
@@ -53,19 +53,77 @@
****************************************************************************/
void devif_iob_send(FAR struct net_driver_s *dev, FAR struct iob_s *iob,
- unsigned int len, unsigned int offset)
+ unsigned int len, unsigned int offset,
+ unsigned int target_offset)
{
- if (dev == NULL || len == 0 || len >= NETDEV_PKTSIZE(dev))
+ unsigned int limit = NETDEV_PKTSIZE(dev) -
+ NET_LL_HDRLEN(dev) - target_offset;
+ unsigned int copyin;
+ int ret;
+
+ if (dev == NULL || len == 0 || len > limit)
{
- nerr("devif_iob_send error, %p, send len: %u, pkt len: %u\n",
- dev, len, NETDEV_PKTSIZE(dev));
+ if (dev->d_iob == NULL)
+ {
+ iob_free_chain(iob);
+ }
+
+ nerr("devif_iob_send error, %p, send len: %u, limit len: %u\n",
+ dev, len, limit);
Review Comment:
Done
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