Remove "VLAN splinters" feature.

The "VLAN splinters" feature works around buggy device drivers in
old Linux versions. But support for the old kernel is dropped, So
now all supported kernel vlan drivers should be working fine with
OVS kernel datapath.
Following patch removes this deprecated feature.

Signed-off-by: Pravin B Shelar <[email protected]>
Acked-by: Ben Pfaff <[email protected]>

FAQ.md

@@ -1277,7 +1277,7 @@ A: Many drivers in Linux kernels before version 3.3 had VLAN-related
 
    - Use a NIC whose driver does not have VLAN problems.
 
-   - Use "VLAN splinters", a feature in Open vSwitch 1.4 and later
+   - Use "VLAN splinters", a feature in Open vSwitch 1.4 upto 2.5
      that works around bugs in kernel drivers.  To enable VLAN
      splinters on interface eth0, use the command:
 

NEWS

@@ -43,6 +43,7 @@ Post-v2.5.0
      * Introduced SELinux policy package.
    - Datapath Linux kernel compatibility.
      * Dropped support for kernel older than 3.10.
+     * Removed VLAN splinters feature.
    - Tunnels:
      * Flow based tunnel match and action can be used for IPv6 address using
        tun_ipv6_src, tun_ipv6_dst fields.

lib/automake.mk

@@ -267,8 +267,6 @@ lib_libopenvswitch_la_SOURCES = \
 	lib/vconn.c \
 	lib/vlan-bitmap.c \
 	lib/vlan-bitmap.h \
-	lib/vlandev.c \
-	lib/vlandev.h \
 	lib/vlog.c \
 	lib/lldp/aa-structs.h \
 	lib/lldp/lldp.c \

lib/dummy.c

@@ -45,7 +45,6 @@ dummy_enable(const char *arg)
     netdev_dummy_register(level);
     dpif_dummy_register(level);
     timeval_dummy_register();
-    vlandev_dummy_enable();
     ofpact_dummy_enable();
 }
 

lib/dummy.h

@@ -37,7 +37,6 @@ void dummy_enable(const char *arg);
 void dpif_dummy_register(enum dummy_level);
 void netdev_dummy_register(enum dummy_level);
 void timeval_dummy_register(void);
-void vlandev_dummy_enable(void);
 void ofpact_dummy_enable(void);
 
 #endif /* dummy.h */