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net: use new in_dev_ifa iterators

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Use in_dev_for_each_ifa_rcu/rtnl instead.
This prevents sparse warnings once proper __rcu annotations are added.

Signed-off-by: Florian Westphal <fw@strlen.de>

t di# Last commands done (6 commands done):

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2019-05-31 18:27:07 +02:00 • committed by David S. Miller
parent b8d1957236
commit cd5a411dba
5 changed files with 29 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

24
net/ipv4/fib_frontend.c
View file

@ -540,14 +540,22 @@ static int rtentry_to_fib_config(struct net *net, int cmd, struct rtentry *rt,
cfg->fc_oif = dev->ifindex;
cfg->fc_table = l3mdev_fib_table(dev);
if (colon) {
struct in_ifaddr *ifa;
struct in_device *in_dev = __in_dev_get_rtnl(dev);
const struct in_ifaddr *ifa;
struct in_device *in_dev;
in_dev = __in_dev_get_rtnl(dev);
if (!in_dev)
return -ENODEV;
*colon = ':';
for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next)
rcu_read_lock();
in_dev_for_each_ifa_rcu(ifa, in_dev) {
if (strcmp(ifa->ifa_label, devname) == 0)
break;
}
rcu_read_unlock();
if (!ifa)
return -ENODEV;
cfg->fc_prefsrc = ifa->ifa_local;
@ -1177,8 +1185,8 @@ void fib_del_ifaddr(struct in_ifaddr *ifa, struct in_ifaddr *iprim)
*
* Scan address list to be sure that addresses are really gone.
*/
for (ifa1 = in_dev->ifa_list; ifa1; ifa1 = ifa1->ifa_next) {
rcu_read_lock();
in_dev_for_each_ifa_rcu(ifa1, in_dev) {
if (ifa1 == ifa) {
/* promotion, keep the IP */
gone = 0;
@ -1246,6 +1254,7 @@ void fib_del_ifaddr(struct in_ifaddr *ifa, struct in_ifaddr *iprim)
}
}
}
rcu_read_unlock();
no_promotions:
if (!(ok & BRD_OK))
@ -1415,6 +1424,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
struct netdev_notifier_info_ext *info_ext = ptr;
struct in_device *in_dev;
struct net *net = dev_net(dev);
struct in_ifaddr *ifa;
unsigned int flags;
if (event == NETDEV_UNREGISTER) {
@ -1429,9 +1439,9 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
switch (event) {
case NETDEV_UP:
for_ifa(in_dev) {
in_dev_for_each_ifa_rtnl(ifa, in_dev) {
fib_add_ifaddr(ifa);
} endfor_ifa(in_dev);
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH
fib_sync_up(dev, RTNH_F_DEAD);
#endif