include/uapi/linux/sockios.h: mark SIOCRTMSG unused

IOCTL SIOCRTMSG does nothing but return EINVAL.

So comment it as unused.

SIOCRTMSG is only used in:
* net/ipv4/af_inet.c
* include/uapi/linux/sockios.h

inet_ioctl calls ip_rt_ioctl.
ip_rt_ioctl only handles SIOCADDRT and SIOCDELRT and returns -EINVAL
otherwise.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/uapi/linux/sockios.h b/include/uapi/linux/sockios.h
index e888b1aed69f..8e7890b26d9a 100644
--- a/include/uapi/linux/sockios.h
+++ b/include/uapi/linux/sockios.h
@@ -27,7 +27,7 @@
 /* Routing table calls. */
 #define SIOCADDRT       0x890B          /* add routing table entry      */
 #define SIOCDELRT       0x890C          /* delete routing table entry   */
-#define SIOCRTMSG       0x890D          /* call to routing system       */
+#define SIOCRTMSG       0x890D          /* unused                       */
 
 /* Socket configuration controls. */
 #define SIOCGIFNAME     0x8910          /* get iface name               */