diff options
| author | Stephen Hemminger <shemminger@osdl.org> | 2006-08-10 08:03:17 +0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-23 01:54:20 +0400 |
| commit | f0fd27d42e39b91f85e1840ec49b072fd6c545b8 (patch) | |
| tree | aa4d1cbe1671507e4d0ec6787076db92a0ee5926 | |
| parent | 55737fda0bc73cb20f702301d8b52938a5a43630 (diff) | |
| download | linux-f0fd27d42e39b91f85e1840ec49b072fd6c545b8.tar.xz | |
[NET]: sock_register interface changes
The sock_register() doesn't change the family, so the protocols can
define it read-only. No caller ever checks return value from
sock_unregister()
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/net.h | 4 | ||||
| -rw-r--r-- | net/socket.c | 10 |
2 files changed, 6 insertions, 8 deletions
diff --git a/include/linux/net.h b/include/linux/net.h index 1bd76327ee2b..c257f716e00f 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -176,8 +176,8 @@ struct iovec; struct kvec; extern int sock_wake_async(struct socket *sk, int how, int band); -extern int sock_register(struct net_proto_family *fam); -extern int sock_unregister(int family); +extern int sock_register(const struct net_proto_family *fam); +extern void sock_unregister(int family); extern int sock_create(int family, int type, int proto, struct socket **res); extern int sock_create_kern(int family, int type, int proto, diff --git a/net/socket.c b/net/socket.c index b5a3fcb9ed6d..4147fe4bf41d 100644 --- a/net/socket.c +++ b/net/socket.c @@ -147,7 +147,7 @@ static struct file_operations socket_file_ops = { */ static DEFINE_SPINLOCK(net_family_lock); -static const struct net_proto_family *net_families[NPROTO]; +static const struct net_proto_family *net_families[NPROTO] __read_mostly; /* * Statistics counters of the socket lists @@ -2080,7 +2080,7 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args) * socket interface. The value ops->family coresponds to the * socket system call protocol family. */ -int sock_register(struct net_proto_family *ops) +int sock_register(const struct net_proto_family *ops) { int err; @@ -2116,10 +2116,9 @@ int sock_register(struct net_proto_family *ops) * a module then it needs to provide its own protection in * the ops->create routine. */ -int sock_unregister(int family) +void sock_unregister(int family) { - if (family < 0 || family >= NPROTO) - return -EINVAL; + BUG_ON(family < 0 || family >= NPROTO); spin_lock(&net_family_lock); net_families[family] = NULL; @@ -2128,7 +2127,6 @@ int sock_unregister(int family) synchronize_rcu(); printk(KERN_INFO "NET: Unregistered protocol family %d\n", family); - return 0; } static int __init sock_init(void) |