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ipvlan: Add new func ipvlan_is_valid_dev instead of duplicated codes

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There are multiple duplicated condition checks in the current codes, so
I add the new func ipvlan_is_valid_dev instead of the duplicated codes to
check if the netdev is real ipvlan dev.

Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gao Feng 2017-12-01 16:33:03 +08:00 committed by David S. Miller
parent 0653cb2e1d
commit 5e51fe6f44
1 changed files with 17 additions and 16 deletions
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33
drivers/net/ipvlan/ipvlan_main.c
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@ -850,6 +850,19 @@ static void ipvlan_del_addr6(struct ipvl_dev *ipvlan, struct in6_addr *ip6_addr)
return ipvlan_del_addr(ipvlan, ip6_addr, true);
}
static bool ipvlan_is_valid_dev(const struct net_device *dev)
{
struct ipvl_dev *ipvlan = netdev_priv(dev);
if (!netif_is_ipvlan(dev))
return false;
if (!ipvlan || !ipvlan->port)
return false;
return true;
}
static int ipvlan_addr6_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
@ -857,10 +870,7 @@ static int ipvlan_addr6_event(struct notifier_block *unused,
struct net_device *dev = (struct net_device *)if6->idev->dev;
struct ipvl_dev *ipvlan = netdev_priv(dev);
if (!netif_is_ipvlan(dev))
return NOTIFY_DONE;
if (!ipvlan || !ipvlan->port)
if (!ipvlan_is_valid_dev(dev))
return NOTIFY_DONE;
switch (event) {
@ -888,10 +898,7 @@ static int ipvlan_addr6_validator_event(struct notifier_block *unused,
if (in_softirq())
return NOTIFY_DONE;
if (!netif_is_ipvlan(dev))
return NOTIFY_DONE;
if (!ipvlan || !ipvlan->port)
if (!ipvlan_is_valid_dev(dev))
return NOTIFY_DONE;
switch (event) {
@ -932,10 +939,7 @@ static int ipvlan_addr4_event(struct notifier_block *unused,
struct ipvl_dev *ipvlan = netdev_priv(dev);
struct in_addr ip4_addr;
if (!netif_is_ipvlan(dev))
return NOTIFY_DONE;
if (!ipvlan || !ipvlan->port)
if (!ipvlan_is_valid_dev(dev))
return NOTIFY_DONE;
switch (event) {
@ -961,10 +965,7 @@ static int ipvlan_addr4_validator_event(struct notifier_block *unused,
struct net_device *dev = (struct net_device *)ivi->ivi_dev->dev;
struct ipvl_dev *ipvlan = netdev_priv(dev);
if (!netif_is_ipvlan(dev))
return NOTIFY_DONE;
if (!ipvlan || !ipvlan->port)
if (!ipvlan_is_valid_dev(dev))
return NOTIFY_DONE;
switch (event) {