Error with devfs compiling RELENG_6

Hi guys.

Got this one kernel with compiling fresh sources:

/contrib/dev/acpica -I/usr/src/sys/contrib/altq -I/usr/src/sys/contrib/ipfilter -I/usr/src/sys/contrib/pf -I/usr/src/sys/contrib/dev/ath -I/usr/src/sys/contrib/dev/ath/freebsd -I/usr/src/sys/contrib/ngatm -I/usr/src/sys/dev/twa -D_KERNEL -include opt_global.h -fno-common -finline-limit=8000 --param inline-unit-growth=100 --param large-function-growth=1000  -mno-align-long-strings -mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -ffreestanding -Werror  /usr/src/sys/fs/devfs/devfs_vnops.c
/usr/src/sys/fs/devfs/devfs_vnops.c:1182: warning: redundant redeclaration of 'devfs_ops_f'
/usr/src/sys/fs/devfs/devfs_vnops.c:71: warning: previous declaration of 'devfs_ops_f' was here
/usr/src/sys/fs/devfs/devfs_vnops.c:1193: warning: redundant redeclaration of 'devfs_vnodeops'
/usr/src/sys/fs/devfs/devfs_vnops.c:69: warning: previous declaration of 'devfs_vnodeops' was here
/usr/src/sys/fs/devfs/devfs_vnops.c:1215: warning: redundant redeclaration of 'devfs_specops'
/usr/src/sys/fs/devfs/devfs_vnops.c:70: warning: previous declaration of 'devfs_specops' was here
*** Error code 1