this code does not get called in dev.c so do we need it?

will fitzgerald (linux_learning@yahoo.co.uk)
Wed, 2 Oct 2002 15:02:35 +0100 (BST)


hi all,

this code excerpt from net_rx_action in dev.c does not
get executed at all. is there any need for it? what
does it do?

i inserted printk's in it just about everywhere.
i have a test network set up, A talks to C via router
B
(kernel 2.4.14)
justificattion:
i've pinged C from A, I've pinged eth0 on B from
A,I've pinged eth1 on B from A and i've pinged A from
router B and in no instance was any of the following
code executed.

whats CONFIG_NET_FASTROUTE supposed to do?

the only part that does get executed are the lines:
"skb->h.raw = skb->nh.raw = skb->data;
{struct packet_type *ptype, *pt_prev;
unsigned short type = skb->protocol;
pt_prev = NULL;" just after the
CONFIG_NET_FASTROUTE section of code.

#ifdef CONFIG_NET_FASTROUTE
if (skb->pkt_type == PACKET_FASTROUTE) {
netdev_rx_stat[this_cpu].fastroute_deferred_out++;
dev_queue_xmit(skb);
dev_put(rx_dev);
continue;
}
#endif
skb->h.raw = skb->nh.raw = skb->data;
{

struct packet_type *ptype, *pt_prev;
unsigned short type = skb->protocol;

pt_prev = NULL;
for (ptype = ptype_all; ptype; ptype = ptype->next)
{
if (!ptype->dev || ptype->dev == skb->dev) {
if (pt_prev) {
if (!pt_prev->data) {
deliver_to_old_ones(pt_prev, skb, 0);
} else {
atomic_inc(&skb->users);
pt_prev->func(skb,
skb->dev,
pt_prev);
}
}
pt_prev = ptype;
}
}

#ifdef CONFIG_NET_DIVERT
if (skb->dev->divert && skb->dev->divert->divert)
handle_diverter(skb);
#endif /* CONFIG_NET_DIVERT */


#if defined(CONFIG_BRIDGE) ||
defined(CONFIG_BRIDGE_MODULE)
if (skb->dev->br_port != NULL &&
br_handle_frame_hook != NULL) {
handle_bridge(skb, pt_prev);
dev_put(rx_dev);
continue;
}
#endif

if i'm wrong let me know,
thanks.

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