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[NETNS]: Should build with CONFIG_SYSCTL=n

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Previous NETNS patches broke CONFIG_SYSCTL=n case

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2008-01-05 23:08:49 -08:00 committed by David S. Miller
parent 6e32814bc8
commit 2a75de0c1d
2 changed files with 12 additions and 7 deletions
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2
include/net/netns/ipv4.h
View File

@ -8,7 +8,9 @@ struct ctl_table_header;
struct ipv4_devconf;
struct netns_ipv4 {
#ifdef CONFIG_SYSCTL
struct ctl_table_header *forw_hdr;
#endif
struct ipv4_devconf *devconf_all;
struct ipv4_devconf *devconf_dflt;
};

17
net/ipv4/devinet.c
View File

@ -1542,7 +1542,6 @@ static void devinet_sysctl_unregister(struct in_device *idev)
__devinet_sysctl_unregister(&idev->cnf);
neigh_sysctl_unregister(idev->arp_parms);
}
#endif
static struct ctl_table ctl_forward_entry[] = {
{
@ -1565,18 +1564,20 @@ static __net_initdata struct ctl_path net_ipv4_path[] = {
{ .procname = "ipv4", .ctl_name = NET_IPV4, },
{ },
};
#endif
static __net_init int devinet_init_net(struct net *net)
{
int err;
struct ctl_table *tbl;
struct ipv4_devconf *all, *dflt;
#ifdef CONFIG_SYSCTL
struct ctl_table *tbl = ctl_forward_entry;
struct ctl_table_header *forw_hdr;
#endif
err = -ENOMEM;
all = &ipv4_devconf;
dflt = &ipv4_devconf_dflt;
tbl = ctl_forward_entry;
if (net != &init_net) {
all = kmemdup(all, sizeof(ipv4_devconf), GFP_KERNEL);
@ -1587,6 +1588,7 @@ static __net_init int devinet_init_net(struct net *net)
if (dflt == NULL)
goto err_alloc_dflt;
#ifdef CONFIG_SYSCTL
tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
if (tbl == NULL)
goto err_alloc_ctl;
@ -1594,6 +1596,7 @@ static __net_init int devinet_init_net(struct net *net)
tbl[0].data = &all->data[NET_IPV4_CONF_FORWARDING - 1];
tbl[0].extra1 = all;
tbl[0].extra2 = net;
#endif
}
#ifdef CONFIG_SYSCTL
@ -1611,9 +1614,9 @@ static __net_init int devinet_init_net(struct net *net)
forw_hdr = register_net_sysctl_table(net, net_ipv4_path, tbl);
if (forw_hdr == NULL)
goto err_reg_ctl;
net->ipv4.forw_hdr = forw_hdr;
#endif
net->ipv4.forw_hdr = forw_hdr;
net->ipv4.devconf_all = all;
net->ipv4.devconf_dflt = dflt;
return 0;
@ -1626,8 +1629,8 @@ static __net_init int devinet_init_net(struct net *net)
err_reg_all:
if (tbl != ctl_forward_entry)
kfree(tbl);
#endif
err_alloc_ctl:
#endif
if (dflt != &ipv4_devconf_dflt)
kfree(dflt);
err_alloc_dflt:
@ -1639,15 +1642,15 @@ static __net_init int devinet_init_net(struct net *net)
static __net_exit void devinet_exit_net(struct net *net)
{
#ifdef CONFIG_SYSCTL
struct ctl_table *tbl;
tbl = net->ipv4.forw_hdr->ctl_table_arg;
#ifdef CONFIG_SYSCTL
unregister_net_sysctl_table(net->ipv4.forw_hdr);
__devinet_sysctl_unregister(net->ipv4.devconf_dflt);
__devinet_sysctl_unregister(net->ipv4.devconf_all);
#endif
kfree(tbl);
#endif
kfree(net->ipv4.devconf_dflt);
kfree(net->ipv4.devconf_all);
}