[NET]: Rethink mark field in struct flowi

Now that all protocols have been made aware of the mark
field it can be moved out of the union thus simplyfing
its usage.

The config options in the IPv4/IPv6/DECnet subsystems
to enable respectively disable mark based routing only
obfuscate the code with ifdefs, the cost for the
additional comparison in the flow key is insignificant,
and most distributions have all these options enabled
by default anyway. Therefore it makes sense to remove
the config options and enable mark based routing by
default.

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

1 files changed, 0 insertions, 7 deletions

diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 5572071af735..bc298bcc344e 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -104,13 +104,6 @@ config IP_MULTIPLE_TABLES
 
           If unsure, say N.
 
-config IP_ROUTE_FWMARK
-        bool "IP: use netfilter MARK value as routing key"
-        depends on IP_MULTIPLE_TABLES && NETFILTER
-        help
-          If you say Y here, you will be able to specify different routes for
-          packets with different mark values (see iptables(8), MARK target).
-
 config IP_ROUTE_MULTIPATH
         bool "IP: equal cost multipath"
         depends on IP_ADVANCED_ROUTER