TSTAMPS_EN_F
req->tcb.opt2 |= (__force __be32)TSTAMPS_EN_F;
opt2 |= TSTAMPS_EN_F;
opt2 |= TSTAMPS_EN_F;
opt2 |= TSTAMPS_EN_F;
} else if (csk->opt2 & TSTAMPS_EN_F) {
csk->opt2 &= ~TSTAMPS_EN_F;
opt2 |= TSTAMPS_EN_F;