if_iwn wifi broke on 11-CURRENT

[Ronald Klop]

On Tue, 03 May 2016 02:51:56 +0200, Ronald Klop <ronald-lists at klop.ws>  
wrote:

> Hi,
>
> I upgraded my laptop and Wifi stopped working.
>
> It still worked on:
> May  2 20:11:13 sjakie kernel: FreeBSD 11.0-CURRENT #8 r296724M: Sun Mar  
> 13 16:03:31 CET 2016
> but broke on:
> May  2 20:24:53 sjakie kernel: FreeBSD 11.0-CURRENT #9 r298900M: Mon  
> May  2 05:00:46 CEST 2016.
>
> I booted the old kernel again and grabbed this information:
> The device is an:
> iwn0: <Intel Centrino Advanced 6235> mem 0xf8000000-0xf8001fff irq 17 at  
> device 0.0 on pci3
>
> ifconfig:
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu  
> 1500
> 	ether **:**:**:**:**:**
> 	nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> 	media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
> 	status: associated
> 	ssid ****** channel 11 (2462 MHz 11g ht/20) bssid **:**:**:**:**:**
> 	regdomain ETSI country NL authmode WPA2/802.11i privacy ON
> 	deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 10 scanvalid 60
> 	protmode CTS ampdulimit 64k ampdudensity 8 -amsdutx amsdurx shortgi
> 	wme roaming MANUAL
> 	groups: wlan
>
> It works on 5Ghz also.

This looks exactly like my issue:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=208933
I was just 41 commit short of a working version. ;-) I will try this  
tomorrow.

Regards,
Ronald.