Не собирается модуль ядра в Ubuntu

In file included from <command-line>:0:0:
/home/master/src/ipfw/ipfw3-2012/kipfw-mod/ip_dummynet.c: In function ‘fsk_detac                                                                                                                     h’:
/home/master/src/ipfw/ipfw3-2012/kipfw-mod/ip_dummynet.c:638:19: error: argument                                                                                                                      to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you                                                                                                                      mean to dereference it? [-Werror=sizeof-pointer-memaccess]
   bzero(fs, sizeof(fs)); /* safety */
                   ^
/home/master/src/ipfw/ipfw3-2012/kipfw-mod/missing.h:138:34: note: in definition                                                                                                                      of macro ‘bzero’
 #define bzero(s, n) memset(s, 0, n)
                                  ^
cc1: all warnings being treated as errors
make[3]: *** [/home/master/src/ipfw/ipfw3-2012/kipfw-mod/ip_dummynet.o] Error 1
make[2]: *** [_module_/home/master/src/ipfw/ipfw3-2012/kipfw-mod] Error 2
make[2]: Leaving directory `/usr/src/linux-headers-3.16.0-30-generic'
make[1]: *** [kipfw] Error 2
make[1]: Leaving directory `/home/master/src/ipfw/ipfw3-2012/kipfw-mod'
make: *** [kipfw] Error 2
master@universal:~/src/ipfw/ipfw3-2012$