Commit cd5a411d authored by Florian Westphal's avatar Florian Westphal Committed by David S. Miller
Browse files

net: use new in_dev_ifa iterators 



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

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

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

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b8d19572

net/ipv4/fib_frontend.c

+17 −7
Original line number Diff line number Diff line
@@ -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

net/ipv4/igmp.c

+3 −2
Original line number Diff line number Diff line
@@ -336,14 +336,15 @@ static __be32 igmpv3_get_srcaddr(struct net_device *dev, 
				 const struct flowi4 *fl4)

{

	struct in_device *in_dev = __in_dev_get_rcu(dev);

	const struct in_ifaddr *ifa;



	if (!in_dev)

		return htonl(INADDR_ANY);



	for_ifa(in_dev) {

	in_dev_for_each_ifa_rcu(ifa, in_dev) {

		if (fl4->saddr == ifa->ifa_local)

			return fl4->saddr;

	} endfor_ifa(in_dev);

	}



	return htonl(INADDR_ANY);

}

net/ipv6/addrconf.c

+1 −3
Original line number Diff line number Diff line
@@ -3127,11 +3127,9 @@ static void sit_add_v4_addrs(struct inet6_dev *idev) 
		struct in_device *in_dev = __in_dev_get_rtnl(dev);

		if (in_dev && (dev->flags & IFF_UP)) {

			struct in_ifaddr *ifa;



			int flag = scope;



			for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {



			in_dev_for_each_ifa_rtnl(ifa, in_dev) {

				addr.s6_addr32[3] = ifa->ifa_local;



				if (ifa->ifa_scope == RT_SCOPE_LINK)

net/sctp/protocol.c

+1 −1
Original line number Diff line number Diff line
@@ -81,7 +81,7 @@ static void sctp_v4_copy_addrlist(struct list_head *addrlist, 
		return;

	}



	for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {

	in_dev_for_each_ifa_rcu(ifa, in_dev) {

		/* Add the address to the local list.  */

		addr = kzalloc(sizeof(*addr), GFP_ATOMIC);

		if (addr) {

net/smc/smc_clc.c

+7 −4
Original line number Diff line number Diff line
@@ -97,17 +97,19 @@ static int smc_clc_prfx_set4_rcu(struct dst_entry *dst, __be32 ipv4, 
				 struct smc_clc_msg_proposal_prefix *prop)

{

	struct in_device *in_dev = __in_dev_get_rcu(dst->dev);

	const struct in_ifaddr *ifa;



	if (!in_dev)

		return -ENODEV;

	for_ifa(in_dev) {



	in_dev_for_each_ifa_rcu(ifa, in_dev) {

		if (!inet_ifa_match(ipv4, ifa))

			continue;

		prop->prefix_len = inet_mask_len(ifa->ifa_mask);

		prop->outgoing_subnet = ifa->ifa_address & ifa->ifa_mask;

		/* prop->ipv6_prefixes_cnt = 0; already done by memset before */

		return 0;

	} endfor_ifa(in_dev);

	}

	return -ENOENT;

}
@@ -190,14 +192,15 @@ static int smc_clc_prfx_match4_rcu(struct net_device *dev, 
				   struct smc_clc_msg_proposal_prefix *prop)

{

	struct in_device *in_dev = __in_dev_get_rcu(dev);

	const struct in_ifaddr *ifa;



	if (!in_dev)

		return -ENODEV;

	for_ifa(in_dev) {

	in_dev_for_each_ifa_rcu(ifa, in_dev) {

		if (prop->prefix_len == inet_mask_len(ifa->ifa_mask) &&

		    inet_ifa_match(prop->outgoing_subnet, ifa))

			return 0;

	} endfor_ifa(in_dev);

	}



	return -ENOENT;

}

CRA Git | Maintained and supported by SUSTech CRA and CCSE