[IPV4]: Remove unused ip_options->is_data.

ip_options->is_data is assigned only and never checked. The structure is
not a part of kernel interface to the userspace. So, it is safe to remove
this field.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 5 deletions

diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 7e94bf850a07..2fa411381b11 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -45,7 +45,6 @@ void ip_options_build(struct sk_buff * skb, struct ip_options * opt,
         memcpy(&(IPCB(skb)->opt), opt, sizeof(struct ip_options));
         memcpy(iph+sizeof(struct iphdr), opt->__data, opt->optlen);
         opt = &(IPCB(skb)->opt);
-        opt->is_data = 0;
 
         if (opt->srr)
                 memcpy(iph+opt->srr+iph[opt->srr+1]-4, &daddr, 4);
@@ -95,8 +94,6 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb)
 
         memset(dopt, 0, sizeof(struct ip_options));
 
-        dopt->is_data = 1;
-
         sopt = &(IPCB(skb)->opt);
 
         if (sopt->optlen == 0) {
@@ -265,7 +262,6 @@ int ip_options_compile(struct ip_options * opt, struct sk_buff * skb)
                 iph = skb_network_header(skb);
                 opt->optlen = ((struct iphdr *)iph)->ihl*4 - sizeof(struct iphdr);
                 optptr = iph + sizeof(struct iphdr);
-                opt->is_data = 0;
         } else {
                 optptr = opt->__data;
                 iph = optptr - sizeof(struct iphdr);
@@ -519,7 +515,6 @@ static int ip_options_get_finish(struct ip_options **optp,
         while (optlen & 3)
                 opt->__data[optlen++] = IPOPT_END;
         opt->optlen = optlen;
-        opt->is_data = 1;
         if (optlen && ip_options_compile(opt, NULL)) {
                 kfree(opt);
                 return -EINVAL;