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ipv6/addrconf: use a boolean to choose between UNREGISTER/DOWN

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"how" was used as a boolean. Change the type to bool, and improve
variable name

Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florent Fourcot 2020-07-31 15:32:07 +02:00 committed by David S. Miller
parent d208a42a62
commit ae79dbf609
1 changed files with 12 additions and 12 deletions
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24
net/ipv6/addrconf.c
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@ -163,7 +163,7 @@ static void addrconf_leave_anycast(struct inet6_ifaddr *ifp);
static void addrconf_type_change(struct net_device *dev,
unsigned long event);
static int addrconf_ifdown(struct net_device *dev, int how);
static int addrconf_ifdown(struct net_device *dev, bool unregister);
static struct fib6_info *addrconf_get_prefix_route(const struct in6_addr *pfx,
int plen,
@ -3630,7 +3630,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
* an L3 master device (e.g., VRF)
*/
if (info->upper_dev && netif_is_l3_master(info->upper_dev))
addrconf_ifdown(dev, 0);
addrconf_ifdown(dev, false);
}
return NOTIFY_OK;
@ -3663,9 +3663,9 @@ static bool addr_is_local(const struct in6_addr *addr)
(IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
}
static int addrconf_ifdown(struct net_device *dev, int how)
static int addrconf_ifdown(struct net_device *dev, bool unregister)
{
unsigned long event = how ? NETDEV_UNREGISTER : NETDEV_DOWN;
unsigned long event = unregister ? NETDEV_UNREGISTER : NETDEV_DOWN;
struct net *net = dev_net(dev);
struct inet6_dev *idev;
struct inet6_ifaddr *ifa, *tmp;
@ -3684,7 +3684,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
* Step 1: remove reference to ipv6 device from parent device.
* Do not dev_put!
*/
if (how) {
if (unregister) {
idev->dead = 1;
/* protected by rtnl_lock */
@ -3698,7 +3698,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* combine the user config with event to determine if permanent
* addresses are to be removed from address hash table
*/
if (!how && !idev->cnf.disable_ipv6) {
if (!unregister && !idev->cnf.disable_ipv6) {
/* aggregate the system setting and interface setting */
int _keep_addr = net->ipv6.devconf_all->keep_addr_on_down;
@ -3736,7 +3736,7 @@ restart:
addrconf_del_rs_timer(idev);
/* Step 2: clear flags for stateless addrconf */
if (!how)
if (!unregister)
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 3: clear tempaddr list */
@ -3806,7 +3806,7 @@ restart:
write_unlock_bh(&idev->lock);
/* Step 5: Discard anycast and multicast list */
if (how) {
if (unregister) {
ipv6_ac_destroy_dev(idev);
ipv6_mc_destroy_dev(idev);
} else {
@ -3816,7 +3816,7 @@ restart:
idev->tstamp = jiffies;
/* Last: Shot the device (if unregistered) */
if (how) {
if (unregister) {
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);
@ -4038,7 +4038,7 @@ static void addrconf_dad_work(struct work_struct *w)
in6_ifa_hold(ifp);
addrconf_dad_stop(ifp, 1);
if (disable_ipv6)
addrconf_ifdown(idev->dev, 0);
addrconf_ifdown(idev->dev, false);
goto out;
}
@ -7187,9 +7187,9 @@ void addrconf_cleanup(void)
for_each_netdev(&init_net, dev) {
if (__in6_dev_get(dev) == NULL)
continue;
addrconf_ifdown(dev, 1);
addrconf_ifdown(dev, true);
}
addrconf_ifdown(init_net.loopback_dev, 1);
addrconf_ifdown(init_net.loopback_dev, true);
/*
* Check hash table.