r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a)
setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x48, &(0x7f0000000000)={@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, 0x20)