[INET]: Merge sys.net.ipv4.ip_forward and sys.net.ipv4.conf.all.forwarding

AFAIS these two entries should do the same thing - change the
forwarding state on ipv4_devconf and on all the devices.

I propose to merge the handlers together using ctl paths.

The inet_forward_change() is static after this and I move
it higher to be closer to other "propagation" helpers and
to avoid diff making patches based on { and } matching :)
i.e. - make them easier to read.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 65 deletions

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index bfd0dec6238d..844f26fab06f 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -27,62 +27,6 @@ static int tcp_retr1_max = 255;
 static int ip_local_port_range_min[] = { 1, 1 };
 static int ip_local_port_range_max[] = { 65535, 65535 };
 
-static
-int ipv4_sysctl_forward(ctl_table *ctl, int write, struct file * filp,
-                        void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-        int val = IPV4_DEVCONF_ALL(FORWARDING);
-        int ret;
-
-        ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
-
-        if (write && IPV4_DEVCONF_ALL(FORWARDING) != val)
-                inet_forward_change();
-
-        return ret;
-}
-
-static int ipv4_sysctl_forward_strategy(ctl_table *table,
-                         int __user *name, int nlen,
-                         void __user *oldval, size_t __user *oldlenp,
-                         void __user *newval, size_t newlen)
-{
-        int *valp = table->data;
-        int new;
-
-        if (!newval || !newlen)
-                return 0;
-
-        if (newlen != sizeof(int))
-                return -EINVAL;
-
-        if (get_user(new, (int __user *)newval))
-                return -EFAULT;
-
-        if (new == *valp)
-                return 0;
-
-        if (oldval && oldlenp) {
-                size_t len;
-
-                if (get_user(len, oldlenp))
-                        return -EFAULT;
-
-                if (len) {
-                        if (len > table->maxlen)
-                                len = table->maxlen;
-                        if (copy_to_user(oldval, valp, len))
-                                return -EFAULT;
-                        if (put_user(len, oldlenp))
-                                return -EFAULT;
-                }
-        }
-
-        *valp = new;
-        inet_forward_change();
-        return 1;
-}
-
 extern seqlock_t sysctl_port_range_lock;
 extern int sysctl_local_port_range[2];
 
@@ -282,15 +226,6 @@ static struct ctl_table ipv4_table[] = {
                 .proc_handler   = &proc_dointvec
         },
         {
-                .ctl_name       = NET_IPV4_FORWARD,
-                .procname       = "ip_forward",
-                .data           = &IPV4_DEVCONF_ALL(FORWARDING),
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &ipv4_sysctl_forward,
-                .strategy       = &ipv4_sysctl_forward_strategy
-        },
-        {
                 .ctl_name       = NET_IPV4_DEFAULT_TTL,
                 .procname       = "ip_default_ttl",
                 .data           = &sysctl_ip_default_ttl,