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genetlink: add auto module loading

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When testing L2TP support, I discovered that the l2tp module is not autoloaded
as are other netlink interfaces. There is because of lack of hook in genetlink to call
request_module and load the module.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2011-12-28 13:48:55 -05:00 committed by David S. Miller
parent 7ffbcecbee
commit fa84309533
1 changed files with 9 additions and 0 deletions
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9
net/netlink/genetlink.c
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@ -792,6 +792,15 @@ static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
name = nla_data(info->attrs[CTRL_ATTR_FAMILY_NAME]);
res = genl_family_find_byname(name);
#ifdef CONFIG_MODULES
if (res == NULL) {
genl_unlock();
request_module("net-pf-%d-proto-%d-type-%s",
PF_NETLINK, NETLINK_GENERIC, name);
genl_lock();
res = genl_family_find_byname(name);
}
#endif
err = -ENOENT;
}