From fa0b2d1d2196dd46527a8d028797e2bca5930a92 Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Mon, 26 Mar 2007 17:38:53 -0700
Subject: [PATCH] [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>
---
include/linux/fib_rules.h | 2 +-
net/core/fib_rules.c | 4 +++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h
index c151273293e2..f278ba781d09 100644
--- a/include/linux/fib_rules.h
+++ b/include/linux/fib_rules.h
@@ -54,7 +54,7 @@ enum
FR_ACT_UNSPEC,
FR_ACT_TO_TBL, /* Pass to fixed table */
FR_ACT_GOTO, /* Jump to another rule */
- FR_ACT_RES2,
+ FR_ACT_NOP, /* No operation */
FR_ACT_RES3,
FR_ACT_RES4,
FR_ACT_BLACKHOLE, /* Drop without notification */
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) {