[NETNS]: Should build with CONFIG_SYSCTL=n

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>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index e06d7cfd6d64..61a28ff9440a 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -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;
 };