const syscall.SizeofRtGenmsg

2 uses

	syscall (current package)
		netlink_linux.go#L45: 	rr.Header.Len = uint32(NLMSG_HDRLEN + SizeofRtGenmsg)
		ztypes_linux_amd64.go#L416: 	SizeofRtGenmsg      = 0x1