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net: packetmmap: fix only tx timestamp on request
The packetmmap tx ring should only return timestamps if requested via setsockopt PACKET_TIMESTAMP, as documented. This allows compatibility with non-timestamp aware user-space code which checks tp_status == TP_STATUS_AVAILABLE; not expecting additional timestamp flags to be set in tp_status. Fixes: b9c32fb ("packet: if hw/sw ts enabled in rx/tx ring, report which ts we got") Cc: Daniel Borkmann <[email protected]> Cc: Willem de Bruijn <[email protected]> Signed-off-by: Richard Sanger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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