Kernel error

khan_frd2002@khanfrd:~/Desktop/kernel-master$ make
  CHK     include/linux/version.h
  CHK     include/generated/utsrelease.h
make[1]: `include/generated/mach-types.h' is up to date.
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  CC      net/bluetooth/hci_conn.o
net/bluetooth/hci_conn.c: In function 'hci_le_ltk_reply':
net/bluetooth/hci_conn.c:407:28: warning: argument to 'sizeof' in 'memcpy' call is the same pointer type '__u8 *' as the destination; expected '__u8' or an explicit length [-Wsizeof-pointer-memaccess]
error, forbidden warning: hci_conn.c:407
make[2]: *** [net/bluetooth/hci_conn.o] Error 1
make[1]: *** [net/bluetooth] Error 2
make: *** [net] Error 2