r0 = socket$inet6(0xa, 0x3, 0x9)
setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x30, &(0x7f00000057c0)={0x0, {{0xa, 0x0, 0x6, @empty, 0x101}}, 0x0, 0x3, [{{0xa, 0x0, 0x8, @private2={0xfc, 0x2, '\x00', 0x1}}}, {{0xa, 0x0, 0x0, @private1, 0x9}}, {{0xa, 0x0, 0x0, @mcast1, 0xffffffff}}]}, 0x210)