[NETLINK]: Add properly module refcounting for kernel netlink sockets.

- Remove bogus code for compiling netlink as module
- Add module refcounting support for modules implementing a netlink
  protocol
- Add support for autoloading modules that implement a netlink protocol
  as soon as someone opens a socket for that protocol

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index b5a5e04b6d37..8809788dac26 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -88,7 +88,7 @@ static struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
 
         dev->groups = 23;
         dev->seq = 1;
-        dev->nls = netlink_kernel_create(NETLINK_W1, NULL);
+        dev->nls = netlink_kernel_create(NETLINK_W1, NULL, THIS_MODULE);
         if (!dev->nls) {
                 printk(KERN_ERR "Failed to create new netlink socket(%u) for w1 master %s.\n",
                         NETLINK_NFLOG, dev->dev.bus_id);
@@ -225,3 +225,5 @@ void w1_remove_master_device(struct w1_bus_master *bm)
 
 EXPORT_SYMBOL(w1_add_master_device);
 EXPORT_SYMBOL(w1_remove_master_device);
+
+MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_W1);