build failure in uchcom

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

Build failure:

#   compile  GENERIC/uchcom.o
/usr/BUILD/tools/bin/x86_64--netbsd-gcc -mcmodel=kernel -mno-red-zone 
-ffreestanding -fno-zero-initialized-in-bss -O2 -fno-omit-frame-pointer 
-std=gnu99 -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith 
-Wmissing-prototypes -Wstrict-prototypes -Wswitch -Wshadow -Wcast-qual 
-Wwrite-strings -Wno-sign-compare -Wno-pointer-sign -Wno-attributes 
-fno-strict-aliasing -Werror -Wall -Wno-main -Wno-format-zero-length 
-Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wswitch -Wshadow 
-Wcast-qual -Wwrite-strings -Wno-sign-compare -Wno-pointer-sign -Wno-attributes 
-Werror -Damd64 -Dx86_64 -I. -I/usr/src/sys/contrib/dev/ath/netbsd 
-I/usr/src/sys/../common/include -I/usr/src/sys/arch -I/usr/src/sys -nostdinc 
-DLKM -DMAXUSERS=64 -D_KERNEL -D_KERNEL_OPT 
-I/usr/src/sys/lib/libkern/../../../common/lib/libc/quad 
-I/usr/src/sys/lib/libkern/../../../common/lib/libc/string 
-I/usr/src/sys/lib/libkern/../../../common/lib/libc/arch/x86_64/string 
-I/usr/src/sys/dist/ipf -c /usr/sr
 c/sys/dev/usb/uchcom.c
cc1: warnings being treated as errors
/usr/src/sys/dev/usb/uchcom.c: In function 'set_line_control':
/usr/src/sys/dev/usb/uchcom.c:725: warning: declaration of 'lcr2' shadows a 
global declaration
./x86/cpufunc.h:66: warning: shadowed declaration is here
/usr/src/sys/dev/usb/uchcom.c: In function 'reset_chip':
/usr/src/sys/dev/usb/uchcom.c:793: warning: declaration of 'lcr2' shadows a 
global declaration
./x86/cpufunc.h:66: warning: shadowed declaration is here



                --Steve Bellovin, http://www.cs.columbia.edu/~smb