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3ce23fa978
The IEEE 1588 standard (PTP) has a provision for a "one step" mode, where time stamps on outgoing event packets are inserted into the packet by the hardware on the fly. This patch adds a new flag for the SIOCSHWTSTAMP ioctl that lets user space programs request this mode. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>