r0 = socket$inet6_udplite(0xa, 0x2, 0x88)
setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x30, &(0x7f0000000300)={0x0, {{0xa, 0x0, 0x0, @mcast1}}, 0x0, 0x4000}, 0x90)