EDD_MBR_SIG_MAX 153 arch/x86/include/uapi/asm/bootparam.h __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ EDD_MBR_SIG_MAX 183 include/uapi/linux/edd.h unsigned int mbr_signature[EDD_MBR_SIG_MAX];