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-rw-r--r--net/phonet/pn_dev.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index 9b4ced6..c33da65 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -46,9 +46,16 @@ struct phonet_net {
int phonet_net_id __read_mostly;
+static struct phonet_net *phonet_pernet(struct net *net)
+{
+ BUG_ON(!net);
+
+ return net_generic(net, phonet_net_id);
+}
+
struct phonet_device_list *phonet_device_list(struct net *net)
{
- struct phonet_net *pnn = net_generic(net, phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(net);
return &pnn->pndevs;
}
@@ -261,7 +268,7 @@ static int phonet_device_autoconf(struct net_device *dev)
static void phonet_route_autodel(struct net_device *dev)
{
- struct phonet_net *pnn = net_generic(dev_net(dev), phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(dev_net(dev));
unsigned i;
DECLARE_BITMAP(deleted, 64);
@@ -313,7 +320,7 @@ static struct notifier_block phonet_device_notifier = {
/* Per-namespace Phonet devices handling */
static int __net_init phonet_init_net(struct net *net)
{
- struct phonet_net *pnn = net_generic(net, phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(net);
if (!proc_net_fops_create(net, "phonet", 0, &pn_sock_seq_fops))
return -ENOMEM;
@@ -326,7 +333,7 @@ static int __net_init phonet_init_net(struct net *net)
static void __net_exit phonet_exit_net(struct net *net)
{
- struct phonet_net *pnn = net_generic(net, phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(net);
struct net_device *dev;
unsigned i;
@@ -376,7 +383,7 @@ void phonet_device_exit(void)
int phonet_route_add(struct net_device *dev, u8 daddr)
{
- struct phonet_net *pnn = net_generic(dev_net(dev), phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(dev_net(dev));
struct phonet_routes *routes = &pnn->routes;
int err = -EEXIST;
@@ -393,7 +400,7 @@ int phonet_route_add(struct net_device *dev, u8 daddr)
int phonet_route_del(struct net_device *dev, u8 daddr)
{
- struct phonet_net *pnn = net_generic(dev_net(dev), phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(dev_net(dev));
struct phonet_routes *routes = &pnn->routes;
daddr = daddr >> 2;
@@ -413,7 +420,7 @@ int phonet_route_del(struct net_device *dev, u8 daddr)
struct net_device *phonet_route_get(struct net *net, u8 daddr)
{
- struct phonet_net *pnn = net_generic(net, phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(net);
struct phonet_routes *routes = &pnn->routes;
struct net_device *dev;
@@ -428,7 +435,7 @@ struct net_device *phonet_route_get(struct net *net, u8 daddr)
struct net_device *phonet_route_output(struct net *net, u8 daddr)
{
- struct phonet_net *pnn = net_generic(net, phonet_net_id);
+ struct phonet_net *pnn = phonet_pernet(net);
struct phonet_routes *routes = &pnn->routes;
struct net_device *dev;
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