FreeBSD 9.0 CURRENT: /usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c:1541:16: error: use of undeclared identifier 'vap'

FreeBSD 9.0-CURRENT/amd64 stopps building kernel with the following 
error in module wlan:



clang -O3 -mtune=native -fno-strict-aliasing -pipe -march=native 
-D_KERNEL -DKLD_MODULE -nostdinc   -DHAVE_KERNEL_OPTION_HEADERS -include 
/usr/obj/usr/src/sys/THOR/opt_global.h -I. -I_at_ -I_at_/contrib/altq 
-fno-common  -fno-omit-frame-pointer -I/usr/obj/usr/src/sys/THOR  
-mno-aes -mno-avx -mcmodel=kernel -mno-red-zone -mno-mmx -msoft-float  
-fno-asynchronous-unwind-tables -ffreestanding -fstack-protector 
-std=iso9899:1999 -fstack-protector -Wall -Wredundant-decls 
-Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes 
-Wpointer-arith -Winline -Wcast-qual  -Wundef -Wno-pointer-sign 
-fformat-extensions  -Wmissing-include-dirs -fdiagnostics-show-option -c 
/usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c
/usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c:1541:16: 
error: use of undeclared identifier 'vap'
         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
                       ^
_at_/sys/queue.h:521:8: note: expanded from:
         for ((var) = TAILQ_FIRST((head));                               \
               ^
/usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c:1541:16: 
error: use of undeclared identifier 'vap'
         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
                       ^
_at_/sys/queue.h:522:7: note: expanded from:
             (var);                                                      \
              ^
/usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c:1541:16: 
error: use of undeclared identifier 'vap'
         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
                       ^
_at_/sys/queue.h:523:7: note: expanded from:
             (var) = TAILQ_NEXT((var), field))
              ^
/usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c:1541:16: 
error: use of undeclared identifier 'vap'
         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
                       ^
_at_/sys/queue.h:523:26: note: expanded from:
             (var) = TAILQ_NEXT((var), field))
                                 ^
_at_/sys/queue.h:597:34: note: expanded from:
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
                                  ^
/usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c:1542:7: 
error: use of undeclared identifier 'vap'
                 if (vap->iv_state == IEEE80211_S_CSA)
                     ^
/usr/src/sys/modules/wlan/../../net80211/ieee80211_proto.c:1543:4: 
error: use of undeclared identifier 'vap'
                         vap->iv_bss->ni_chan = ic->ic_curchan;
                         ^
6 errors generated.
*** Error code 1

Stop in /usr/src/sys/modules/wlan.



Regards,
Oliver