HWTSTAMP_FLAG_BONDED_PHC_INDEX
cfg.flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX;
kernel_cfg->flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX;
if (!(cfg->flags & HWTSTAMP_FLAG_BONDED_PHC_INDEX))
HWTSTAMP_FLAG_LAST = HWTSTAMP_FLAG_BONDED_PHC_INDEX,
[const_ilog2(HWTSTAMP_FLAG_BONDED_PHC_INDEX)] = "bonded-phc-index",