Comment 26 for bug 1239578

Guys,
Just sharing my experience with this issue.
I've got Lenovo Thinkpad L440 recently which has this realtek network device. Installed 12.04 LTS and all I could see was "no network device available". So no wired & wireless connection could be made. Then I read various solutions over web and then found this bug filed.
Later I tried installing 3.14-rc7 and rebooted. Now my wired connection (ethX) is up but still no wireless support. Now I see only one UNCLAIMED (earlier there were 2) h/w in 'lshw' output.
$ sudo lshw -C network -numeric
  *-network
       description: Ethernet interface
       product: Intel Corporation [8086:153B]
       vendor: Intel Corporation [8086]
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eth9
       version: 05
       serial: 3c:97:0e:e8:0a:25
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.3.2-k duplex=full firmware=0.13-3 ip=192.168.1.126 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:42 memory:f2500000-f251ffff memory:f253f000-f253ffff ioport:6080(size=32)
  *-network UNCLAIMED
       description: Network controller
       product: Realtek Semiconductor Co., Ltd. [10EC:818B]
       vendor: Realtek Semiconductor Co., Ltd. [10EC]
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: ioport:5000(size=256) memory:f2400000-f2403fff

I just hope this might be of use to someone. Thanks.