net/sched: act_gact: disallow 'goto chain' on fallback control action

[muen/linux.git] / net / sched / act_gact.c

diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index c89a7fa43d1b08f48cdbbb0c2b40aa1b08dbe537..b61c20ebb314ac8301f66758c6de0d97e38c7a9a 100644 (file)
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -88,6 +88,11 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
                p_parm = nla_data(tb[TCA_GACT_PROB]);
                if (p_parm->ptype >= MAX_RAND)
                        return -EINVAL;
                p_parm = nla_data(tb[TCA_GACT_PROB]);
                if (p_parm->ptype >= MAX_RAND)
                        return -EINVAL;

+               if (TC_ACT_EXT_CMP(p_parm->paction, TC_ACT_GOTO_CHAIN)) {
+                       NL_SET_ERR_MSG(extack,
+                                      "goto chain not allowed on fallback");
+                       return -EINVAL;
+               }

        }
 #endif
 
        }
 #endif