32 	struct mctp_dev *mdev = rcu_dereference(dev->mctp_ptr);  in __mctp_dev_get()  local
34 	/* RCU guarantees that any mdev is still live.  in __mctp_dev_get()
37 	if (mdev)  in __mctp_dev_get()
38 		if (!refcount_inc_not_zero(&mdev->refs))  in __mctp_dev_get()
40 	return mdev;  in __mctp_dev_get()
61 			      struct mctp_dev *mdev, mctp_eid_t eid,  in mctp_fill_addrinfo()  argument
78 	hdr->ifa_index = mdev->dev->ifindex;  in mctp_fill_addrinfo()
95 static int mctp_dump_dev_addrinfo(struct mctp_dev *mdev, struct sk_buff *skb,  in mctp_dump_dev_addrinfo()  argument
104 	for (; mcb->a_idx < mdev->num_addrs; mcb->a_idx++) {  in mctp_dump_dev_addrinfo()
105 		rc = mctp_fill_addrinfo(skb, mdev, mdev->addrs[mcb->a_idx],  in mctp_dump_dev_addrinfo()
120 	struct mctp_dev *mdev;  in mctp_dump_addrinfo()  local
138 		mdev = __mctp_dev_get(dev);  in mctp_dump_addrinfo()
139 		if (!mdev)  in mctp_dump_addrinfo()
141 		rc = mctp_dump_dev_addrinfo(mdev, skb, cb);  in mctp_dump_addrinfo()
142 		mctp_dev_put(mdev);  in mctp_dump_addrinfo()
152 static void mctp_addr_notify(struct mctp_dev *mdev, mctp_eid_t eid, int msg_type,  in mctp_addr_notify()  argument
156 	struct net *net = dev_net(mdev->dev);  in mctp_addr_notify()
164 	rc = mctp_fill_addrinfo(skb, mdev, eid, msg_type,  in mctp_addr_notify()
190 	struct mctp_dev *mdev;  in mctp_rtm_newaddr()  local
215 	mdev = mctp_dev_get_rtnl(dev);  in mctp_rtm_newaddr()
216 	if (!mdev)  in mctp_rtm_newaddr()
223 	if (memchr(mdev->addrs, addr->s_addr, mdev->num_addrs))  in mctp_rtm_newaddr()
226 	tmp_addrs = kmalloc(mdev->num_addrs + 1, GFP_KERNEL);  in mctp_rtm_newaddr()
229 	memcpy(tmp_addrs, mdev->addrs, mdev->num_addrs);  in mctp_rtm_newaddr()
230 	tmp_addrs[mdev->num_addrs] = addr->s_addr;  in mctp_rtm_newaddr()
233 	spin_lock_irqsave(&mdev->addrs_lock, flags);  in mctp_rtm_newaddr()
234 	mdev->num_addrs++;  in mctp_rtm_newaddr()
235 	swap(mdev->addrs, tmp_addrs);  in mctp_rtm_newaddr()
236 	spin_unlock_irqrestore(&mdev->addrs_lock, flags);  in mctp_rtm_newaddr()
240 	mctp_addr_notify(mdev, addr->s_addr, RTM_NEWADDR, skb, nlh);  in mctp_rtm_newaddr()
241 	mctp_route_add_local(mdev, addr->s_addr);  in mctp_rtm_newaddr()
253 	struct mctp_dev *mdev;  in mctp_rtm_deladdr()  local
278 	mdev = mctp_dev_get_rtnl(dev);  in mctp_rtm_deladdr()
279 	if (!mdev)  in mctp_rtm_deladdr()
282 	pos = memchr(mdev->addrs, addr->s_addr, mdev->num_addrs);  in mctp_rtm_deladdr()
286 	rc = mctp_route_remove_local(mdev, addr->s_addr);  in mctp_rtm_deladdr()
291 	spin_lock_irqsave(&mdev->addrs_lock, flags);  in mctp_rtm_deladdr()
292 	memmove(pos, pos + 1, mdev->num_addrs - 1 - (pos - mdev->addrs));  in mctp_rtm_deladdr()
293 	mdev->num_addrs--;  in mctp_rtm_deladdr()
294 	spin_unlock_irqrestore(&mdev->addrs_lock, flags);  in mctp_rtm_deladdr()
296 	mctp_addr_notify(mdev, addr->s_addr, RTM_DELADDR, skb, nlh);  in mctp_rtm_deladdr()
301 void mctp_dev_hold(struct mctp_dev *mdev)  in mctp_dev_hold()  argument
303 	refcount_inc(&mdev->refs);  in mctp_dev_hold()
306 void mctp_dev_put(struct mctp_dev *mdev)  in mctp_dev_put()  argument
308 	if (mdev && refcount_dec_and_test(&mdev->refs)) {  in mctp_dev_put()
309 		kfree(mdev->addrs);  in mctp_dev_put()
310 		dev_put(mdev->dev);  in mctp_dev_put()
311 		kfree_rcu(mdev, rcu);  in mctp_dev_put()
335 	struct mctp_dev *mdev;  in mctp_add_dev()  local
339 	mdev = kzalloc_obj(*mdev);  in mctp_add_dev()
340 	if (!mdev)  in mctp_add_dev()
343 	spin_lock_init(&mdev->addrs_lock);  in mctp_add_dev()
345 	mdev->net = mctp_default_net(dev_net(dev));  in mctp_add_dev()
348 	refcount_set(&mdev->refs, 1);  in mctp_add_dev()
349 	rcu_assign_pointer(dev->mctp_ptr, mdev);  in mctp_add_dev()
352 	mdev->dev = dev;  in mctp_add_dev()
354 	return mdev;  in mctp_add_dev()
360 	struct mctp_dev *mdev;  in mctp_fill_link_af()  local
362 	mdev = mctp_dev_get_rtnl(dev);  in mctp_fill_link_af()
363 	if (!mdev)  in mctp_fill_link_af()
365 	if (nla_put_u32(skb, IFLA_MCTP_NET, mdev->net))  in mctp_fill_link_af()
367 	if (nla_put_u8(skb, IFLA_MCTP_PHYS_BINDING, mdev->binding))  in mctp_fill_link_af()
375 	struct mctp_dev *mdev;  in mctp_get_link_af_size()  local
379 	mdev = __mctp_dev_get(dev);  in mctp_get_link_af_size()
380 	if (!mdev)  in mctp_get_link_af_size()
384 	mctp_dev_put(mdev);  in mctp_get_link_af_size()
396 	struct mctp_dev *mdev;  in mctp_set_link_af()  local
404 	mdev = mctp_dev_get_rtnl(dev);  in mctp_set_link_af()
405 	if (!mdev)  in mctp_set_link_af()
409 		WRITE_ONCE(mdev->net, nla_get_u32(tb[IFLA_MCTP_NET]));  in mctp_set_link_af()
425 	struct mctp_dev *mdev;  in mctp_unregister()  local
427 	mdev = mctp_dev_get_rtnl(dev);  in mctp_unregister()
428 	if (!mdev)  in mctp_unregister()
431 	RCU_INIT_POINTER(mdev->dev->mctp_ptr, NULL);  in mctp_unregister()
433 	mctp_route_remove_dev(mdev);  in mctp_unregister()
434 	mctp_neigh_remove_dev(mdev);  in mctp_unregister()
436 	mctp_dev_put(mdev);  in mctp_unregister()
441 	struct mctp_dev *mdev;  in mctp_register()  local
451 	mdev = mctp_add_dev(dev);  in mctp_register()
452 	if (IS_ERR(mdev))  in mctp_register()
453 		return PTR_ERR(mdev);  in mctp_register()
482 	struct mctp_dev *mdev;  in mctp_register_netdevice()  local
484 	mdev = mctp_add_dev(dev);  in mctp_register_netdevice()
485 	if (IS_ERR(mdev))  in mctp_register_netdevice()
486 		return PTR_ERR(mdev);  in mctp_register_netdevice()
488 	mdev->ops = ops;  in mctp_register_netdevice()
489 	mdev->binding = binding;  in mctp_register_netdevice()