recent USB changes break building of atausb module

Hi,

I just updated to a fresh current today to notice that with the recent
slew of commits to the usb subsystem, the atausb module no longer
compiles.

cc -O2 -fno-strict-aliasing -pipe -march=athlon-mp  -D_KERNEL
-DKLD_MODULE -std=c99 -nostdinc   -I. -I_at_ -I_at_/contrib/altq
-finline-limit=8000 --param inline-unit-growth=100 --param
large-function-growth=1000 -fno-common  -mno-align-long-strings
-mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2
-mno-sse3 -ffreestanding -Wall -Wredundant-decls -Wnested-externs
-Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Winline
-Wcast-qual  -Wundef -Wno-pointer-sign -fformat-extensions
-c /usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:151: warning:
data definition has no type or storage class
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:151: warning:
type defaults to 'int' in declaration of 'USB_DECLARE_DRIVER'
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:151: warning:
parameter names (without types) in function declaration
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:152: error:
'atausb_driver' undeclared here (not in a function)
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:152: error:
'atausb_devclass' undeclared here (not in a function)
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c: In function
'atausb_attach':
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:278: warning:
implicit declaration of function 'atausb_detach'
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:278: warning:
nested extern declaration of 'atausb_detach'
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c: At top
level:
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:353: error:
static declaration of 'atausb_detach' follows non-static declaration
/usr/src/sys/modules/ata/atausb/../../../dev/ata/ata-usb.c:278: error:
previous implicit declaration of 'atausb_detach' was here
*** Error code 1

I know it's not exactly critical as atausb is not built on default but
would appreciate it if somebody could have a closer look at this.

-- 
  Pascal Hofstee