CC      arch/x86_64/kernel/setup.o
arch/x86_64/kernel/setup.c: In function `copy_edd':
arch/x86_64/kernel/setup.c:415: error: `EDD_MBR_SIGNATURE' undeclared 
(first use in this function)
arch/x86_64/kernel/setup.c:415: error: (Each undeclared identifier is 
reported only once
arch/x86_64/kernel/setup.c:415: error: for each function it appears in.)
arch/x86_64/kernel/setup.c:417: error: `EDD_MBR_SIG_NR' undeclared 
(first use in this function)
make[1]: *** [arch/x86_64/kernel/setup.o] Error 1
make: *** [arch/x86_64/kernel] Error 2


config and dmesg attached, if interested.