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| author | Miroslav Lichvar <mlichvar@redhat.com> | 2022-01-05 11:33:26 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-01-06 12:18:08 +0000 |
| commit | 007747a984ea5e895b7d8b056b24ebf431e1e71d (patch) | |
| tree | 219ac440129b5f84954ac55c7dc63d47554f3750 /lib/devmem_is_allowed.c | |
| parent | 1b26d364e4e9bd6540a8e7bcaf50e7f35041feb5 (diff) | |
| download | linux-007747a984ea5e895b7d8b056b24ebf431e1e71d.tar.bz2 | |
net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets
When multiple sockets using the SOF_TIMESTAMPING_BIND_PHC flag received
a packet with a hardware timestamp (e.g. multiple PTP instances in
different PTP domains using the UDPv4/v6 multicast or L2 transport),
the timestamps received on some sockets were corrupted due to repeated
conversion of the same timestamp (by the same or different vclocks).
Fix ptp_convert_timestamp() to not modify the shared skb timestamp
and return the converted timestamp as a ktime_t instead. If the
conversion fails, return 0 to not confuse the application with
timestamps corresponding to an unexpected PHC.
Fixes: d7c088265588 ("net: socket: support hardware timestamp conversion to PHC bound")
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Yangbo Lu <yangbo.lu@nxp.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/devmem_is_allowed.c')
0 files changed, 0 insertions, 0 deletions