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netif_set_link_up/down: only do something if the link state actually changes

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This commit is contained in:
goldsimon 2010-02-12 16:50:23 +00:00
parent 2e795d2706
commit 29eb56a2f6
2 changed files with 27 additions and 19 deletions
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4
CHANGELOG
View File

@ -119,6 +119,10 @@ HISTORY
++ Bugfixes:
2010-02-12: Simon Goldschmidt
* netif.c: netif_set_link_up/down: only do something if the link state
actually changes
2010-02-12: Simon Goldschmidt/Stephane Lesage
* api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
connect)

42
src/core/netif.c
View File

@ -506,36 +506,38 @@ void netif_set_status_callback(struct netif *netif, netif_status_callback_fn sta
*/
void netif_set_link_up(struct netif *netif )
{
netif->flags |= NETIF_FLAG_LINK_UP;
if (!(netif->flags & NETIF_FLAG_LINK_UP)) {
netif->flags |= NETIF_FLAG_LINK_UP;
#if LWIP_DHCP
if (netif->dhcp) {
dhcp_network_changed(netif);
}
if (netif->dhcp) {
dhcp_network_changed(netif);
}
#endif /* LWIP_DHCP */
#if LWIP_AUTOIP
if (netif->autoip) {
autoip_network_changed(netif);
}
if (netif->autoip) {
autoip_network_changed(netif);
}
#endif /* LWIP_AUTOIP */
if (netif->flags & NETIF_FLAG_UP) {
if (netif->flags & NETIF_FLAG_UP) {
#if LWIP_ARP
/* For Ethernet network interfaces, we would like to send a "gratuitous ARP" */
if (netif->flags & NETIF_FLAG_ETHARP) {
etharp_gratuitous(netif);
}
/* For Ethernet network interfaces, we would like to send a "gratuitous ARP" */
if (netif->flags & NETIF_FLAG_ETHARP) {
etharp_gratuitous(netif);
}
#endif /* LWIP_ARP */
#if LWIP_IGMP
/* resend IGMP memberships */
if (netif->flags & NETIF_FLAG_IGMP) {
igmp_report_groups( netif);
}
/* resend IGMP memberships */
if (netif->flags & NETIF_FLAG_IGMP) {
igmp_report_groups( netif);
}
#endif /* LWIP_IGMP */
}
NETIF_LINK_CALLBACK(netif);
}
NETIF_LINK_CALLBACK(netif);
}
/**
@ -543,8 +545,10 @@ void netif_set_link_up(struct netif *netif )
*/
void netif_set_link_down(struct netif *netif )
{
netif->flags &= ~NETIF_FLAG_LINK_UP;
NETIF_LINK_CALLBACK(netif);
if (netif->flags & NETIF_FLAG_LINK_UP) {
netif->flags &= ~NETIF_FLAG_LINK_UP;
NETIF_LINK_CALLBACK(netif);
}
}
/**