NLA_TYPE_MASK      56 include/linux/genl_magic_struct.h #define __nla_type(x)	((__u16)((x) & NLA_TYPE_MASK & ~DRBD_GENLA_F_MANDATORY))
NLA_TYPE_MASK     661 include/net/netlink.h 	return nla->nla_type & NLA_TYPE_MASK;