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Message-Id: <20171202204408.4166-4-fw@strlen.de>
Date: Sat, 2 Dec 2017 21:44:07 +0100
From: Florian Westphal <fw@...len.de>
To: <netdev@...r.kernel.org>
Cc: Florian Westphal <fw@...len.de>
Subject: [PATCH net-next 3/4] net: use rtnl_register_module where needed
all of these can be compiled as a module, so use new
_module version to make sure module can no longer be removed
while callback/dump is in use.
Signed-off-by: Florian Westphal <fw@...len.de>
---
net/bridge/br_mdb.c | 6 +++---
net/can/gw.c | 14 ++++++++++----
net/decnet/dn_dev.c | 9 ++++++---
net/decnet/dn_fib.c | 6 ++++--
net/decnet/dn_route.c | 8 ++++----
net/mpls/af_mpls.c | 15 +++++++++------
net/phonet/pn_netlink.c | 21 +++++++++++++--------
net/qrtr/qrtr.c | 8 ++++++--
8 files changed, 55 insertions(+), 32 deletions(-)
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index b0f4c734900b..6d9f48bd374a 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -760,9 +760,9 @@ static int br_mdb_del(struct sk_buff *skb, struct nlmsghdr *nlh,
void br_mdb_init(void)
{
- rtnl_register(PF_BRIDGE, RTM_GETMDB, NULL, br_mdb_dump, 0);
- rtnl_register(PF_BRIDGE, RTM_NEWMDB, br_mdb_add, NULL, 0);
- rtnl_register(PF_BRIDGE, RTM_DELMDB, br_mdb_del, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_GETMDB, NULL, br_mdb_dump, 0);
+ rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_NEWMDB, br_mdb_add, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_BRIDGE, RTM_DELMDB, br_mdb_del, NULL, 0);
}
void br_mdb_uninit(void)
diff --git a/net/can/gw.c b/net/can/gw.c
index 73a02af4b5d7..398dd0395ad9 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -1014,6 +1014,8 @@ static struct pernet_operations cangw_pernet_ops = {
static __init int cgw_module_init(void)
{
+ int ret;
+
/* sanitize given module parameter */
max_hops = clamp_t(unsigned int, max_hops, CGW_MIN_HOPS, CGW_MAX_HOPS);
@@ -1031,15 +1033,19 @@ static __init int cgw_module_init(void)
notifier.notifier_call = cgw_notifier;
register_netdevice_notifier(¬ifier);
- if (__rtnl_register(PF_CAN, RTM_GETROUTE, NULL, cgw_dump_jobs, 0)) {
+ ret = rtnl_register_module(THIS_MODULE, PF_CAN, RTM_GETROUTE,
+ NULL, cgw_dump_jobs, 0);
+ if (ret) {
unregister_netdevice_notifier(¬ifier);
kmem_cache_destroy(cgw_cache);
return -ENOBUFS;
}
- /* Only the first call to __rtnl_register can fail */
- __rtnl_register(PF_CAN, RTM_NEWROUTE, cgw_create_job, NULL, 0);
- __rtnl_register(PF_CAN, RTM_DELROUTE, cgw_remove_job, NULL, 0);
+ /* Only the first call to rtnl_register_module can fail */
+ rtnl_register_module(THIS_MODULE, PF_CAN, RTM_NEWROUTE,
+ cgw_create_job, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_CAN, RTM_DELROUTE,
+ cgw_remove_job, NULL, 0);
return 0;
}
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 9153247dad28..d1885cf59319 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -1418,9 +1418,12 @@ void __init dn_dev_init(void)
dn_dev_devices_on();
- rtnl_register(PF_DECnet, RTM_NEWADDR, dn_nl_newaddr, NULL, 0);
- rtnl_register(PF_DECnet, RTM_DELADDR, dn_nl_deladdr, NULL, 0);
- rtnl_register(PF_DECnet, RTM_GETADDR, NULL, dn_nl_dump_ifaddr, 0);
+ rtnl_register_module(THIS_MODULE, PF_DECnet, RTM_NEWADDR,
+ dn_nl_newaddr, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_DECnet, RTM_DELADDR,
+ dn_nl_deladdr, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_DECnet, RTM_GETADDR,
+ NULL, dn_nl_dump_ifaddr, 0);
proc_create("decnet_dev", S_IRUGO, init_net.proc_net, &dn_dev_seq_fops);
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index b37a1b833c77..fce94cbd4378 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -792,8 +792,10 @@ void __init dn_fib_init(void)
register_dnaddr_notifier(&dn_fib_dnaddr_notifier);
- rtnl_register(PF_DECnet, RTM_NEWROUTE, dn_fib_rtm_newroute, NULL, 0);
- rtnl_register(PF_DECnet, RTM_DELROUTE, dn_fib_rtm_delroute, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_DECnet, RTM_NEWROUTE,
+ dn_fib_rtm_newroute, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_DECnet, RTM_DELROUTE,
+ dn_fib_rtm_delroute, NULL, 0);
}
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 4b3ca70be723..73160d4aebbe 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1923,11 +1923,11 @@ void __init dn_route_init(void)
&dn_rt_cache_seq_fops);
#ifdef CONFIG_DECNET_ROUTER
- rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute,
- dn_fib_dump, 0);
+ rtnl_register_module(THIS_MODULE, PF_DECnet, RTM_GETROUTE,
+ dn_cache_getroute, dn_fib_dump, 0);
#else
- rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute,
- dn_cache_dump, 0);
+ rtnl_register_module(THIS_MODULE, PF_DECnet, RTM_GETROUTE,
+ dn_cache_getroute, dn_cache_dump, 0);
#endif
}
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index 8ca9915befc8..5dce8336d33f 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -2510,12 +2510,15 @@ static int __init mpls_init(void)
rtnl_af_register(&mpls_af_ops);
- rtnl_register(PF_MPLS, RTM_NEWROUTE, mpls_rtm_newroute, NULL, 0);
- rtnl_register(PF_MPLS, RTM_DELROUTE, mpls_rtm_delroute, NULL, 0);
- rtnl_register(PF_MPLS, RTM_GETROUTE, mpls_getroute, mpls_dump_routes,
- 0);
- rtnl_register(PF_MPLS, RTM_GETNETCONF, mpls_netconf_get_devconf,
- mpls_netconf_dump_devconf, 0);
+ rtnl_register_module(THIS_MODULE, PF_MPLS, RTM_NEWROUTE,
+ mpls_rtm_newroute, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_MPLS, RTM_DELROUTE,
+ mpls_rtm_delroute, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_MPLS, RTM_GETROUTE,
+ mpls_getroute, mpls_dump_routes, 0);
+ rtnl_register_module(THIS_MODULE, PF_MPLS, RTM_GETNETCONF,
+ mpls_netconf_get_devconf,
+ mpls_netconf_dump_devconf, 0);
err = ipgre_tunnel_encap_add_mpls_ops();
if (err)
pr_err("Can't add mpls over gre tunnel ops\n");
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index da754fc926e7..871eaf2cb85e 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -299,16 +299,21 @@ static int route_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
int __init phonet_netlink_register(void)
{
- int err = __rtnl_register(PF_PHONET, RTM_NEWADDR, addr_doit,
- NULL, 0);
+ int err = rtnl_register_module(THIS_MODULE, PF_PHONET, RTM_NEWADDR,
+ addr_doit, NULL, 0);
if (err)
return err;
- /* Further __rtnl_register() cannot fail */
- __rtnl_register(PF_PHONET, RTM_DELADDR, addr_doit, NULL, 0);
- __rtnl_register(PF_PHONET, RTM_GETADDR, NULL, getaddr_dumpit, 0);
- __rtnl_register(PF_PHONET, RTM_NEWROUTE, route_doit, NULL, 0);
- __rtnl_register(PF_PHONET, RTM_DELROUTE, route_doit, NULL, 0);
- __rtnl_register(PF_PHONET, RTM_GETROUTE, NULL, route_dumpit, 0);
+ /* Further rtnl_register_module() cannot fail */
+ rtnl_register_module(THIS_MODULE, PF_PHONET, RTM_DELADDR,
+ addr_doit, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_PHONET, RTM_GETADDR,
+ NULL, getaddr_dumpit, 0);
+ rtnl_register_module(THIS_MODULE, PF_PHONET, RTM_NEWROUTE,
+ route_doit, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_PHONET, RTM_DELROUTE,
+ route_doit, NULL, 0);
+ rtnl_register_module(THIS_MODULE, PF_PHONET, RTM_GETROUTE,
+ NULL, route_dumpit, 0);
return 0;
}
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index 77ab05e23001..5fb3929e3d7d 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -1116,9 +1116,13 @@ static int __init qrtr_proto_init(void)
return rc;
}
- rtnl_register(PF_QIPCRTR, RTM_NEWADDR, qrtr_addr_doit, NULL, 0);
+ rc = rtnl_register_module(THIS_MODULE, PF_QIPCRTR, RTM_NEWADDR, qrtr_addr_doit, NULL, 0);
+ if (rc) {
+ sock_unregister(qrtr_family.family);
+ proto_unregister(&qrtr_proto);
+ }
- return 0;
+ return rc;
}
postcore_initcall(qrtr_proto_init);
--
2.13.6
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