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Simplify last change to netdev_findbyaddr

This commit is contained in:
Gregory Nutt 2014-03-22 09:24:25 -06:00
parent aaeb777ba2
commit 541bb47a12
1 changed files with 7 additions and 13 deletions
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20
nuttx/net/netdev_findbyaddr.c
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@ -96,30 +96,24 @@
static FAR struct uip_driver_s *netdev_finddevice(const uip_ipaddr_t addr)
{
struct uip_driver_s *dev;
uint8_t iff;
/* Examine each registered network device */
netdev_semtake();
for (dev = g_netdevices; dev; dev = dev->flink)
{
/* Get the interface flags */
/* Is the interface in the "up" state? */
if (uip_getifstatus(dev->d_ifname, &iff) == OK)
if ((dev->d_flags & IFF_UP) != 0)
{
/* Is the interface in the "up" state? */
/* Yes.. check for an address match (under the netmask) */
if ((iff & IFF_UP) != 0)
if (uip_ipaddr_maskcmp(dev->d_ipaddr, addr, dev->d_netmask))
{
/* Yes.. check for an address match (under the netmask) */
/* Its a match */
if (uip_ipaddr_maskcmp(dev->d_ipaddr, addr, dev->d_netmask))
{
/* Its a match */
netdev_semgive();
return dev;
}
netdev_semgive();
return dev;
}
}
}