r0 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$SIOCGSTAMPNS(r0, 0x8907, 0x0)
setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000040)=0x400b, 0x4)