const syscall.SizeofICMPv6Filter

3 uses

	syscall (current package)
		syscall_bsd.go#L364: 	vallen := _Socklen(SizeofICMPv6Filter)
		syscall_unix.go#L323: 	return setsockopt(fd, level, opt, unsafe.Pointer(filter), SizeofICMPv6Filter)
		ztypes_darwin_arm64.go#L277: 	SizeofICMPv6Filter     = 0x20