[NET] fib_rules: Add no-operation action

The use of nop rules simplifies the usage of goto rules
and adds more flexibility as they allow targets to remain
while the actual content of the branches can change easly.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 7ac602cc8c85..5824b2644f26 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -146,7 +146,9 @@ jumped:
                                 rule = target;
                                 goto jumped;
                         }
-                } else
+                } else if (rule->action == FR_ACT_NOP)
+                        continue;
+                else
                         err = ops->action(rule, fl, flags, arg);
 
                 if (err != -EAGAIN) {