iwn no-link with latest kernel

Hi, the iwn driver fails to detect wifi signals, loader.conf is
unchanged (worked with older kernels)

[rohit_at_tp ~]$ sudo dhclient wlan0
Password:
wlan0: no link ...........^C

Output of ifconfig:

em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
	ether 00:1b:78:73:35:b5
	media: Ethernet autoselect
	status: no carrier
iwn0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290
	ether 00:1b:e1:7e:fa:09
	media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
	status: associated
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
	inet6 ::1 prefixlen 128
	inet 127.0.0.1 netmask 0xff000000
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	ether 00:1b:e1:7e:fa:09
	inet 192.168.1.125 netmask 0xffffff00 broadcast 192.168.1.255
	media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
	status: no carrier
	ssid prout channel 6 (2437 Mhz 11g)
	country US authmode SHARED privacy ON deftxkey 1 wepkey 1:40-bit
	txpower 14 bmiss 10 scanvalid 60 protmode CTS wme


[rohit_at_tp ~]$ kldstat
Id Refs Address    Size     Name
 1   45 0xc0400000 9ee84c   kernel (/boot/kernel/kernel)
 2    2 0xc0def000 2b0b0    linux.ko (/boot/kernel/linux.ko)
 3    1 0xc0e1b000 19c30    snd_hda.ko (/boot/kernel/snd_hda.ko)
 4    2 0xc0e35000 4a4f4    sound.ko (/boot/kernel/sound.ko)
 5    1 0xc0e80000 3414     umodem.ko (/boot/kernel/umodem.ko)
 6    1 0xc0e84000 756a9c   nvidia.ko (/boot/modules/nvidia.ko)
 7    1 0xc15db000 6c6f4    acpi.ko (/boot/kernel/acpi.ko)
 8    1 0xc5eda000 9000     reiserfs.ko (/boot/kernel/reiserfs.ko)


Dmesg output:

iwn0: <Intel(R) PRO/Wireless 4965BGN> mem 0xd7dfe000-0xd7dfffff irq 17
at device 0.0 on pci3
iwn0: Reg Domain: MoW1, address 00:1d:e0:7e:f0:09
iwn0: [ITHREAD]
iwn0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
iwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11na MCS: 15Mbps 30Mbps 45Mbps 60Mbps 90Mbps 120Mbps 135Mbps
150Mbps 30Mbps 60Mbps 90Mbps 120Mbps 180Mbps 240Mbps 270Mbps 300Mbps
iwn0: 11ng MCS: 15Mbps 30Mbps 45Mbps 60Mbps 90Mbps 120Mbps 135Mbps
150Mbps 30Mbps 60Mbps 90Mbps 120Mbps 180Mbps 240Mbps 270Mbps 300Mbps
iwn0: need multicast update callback