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743598f049
linux/drivers/ptp
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Miroslav Lichvar 007747a984 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: d7c0882655 ("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>
2022-01-06 12:18:08 +00:00
..
Kconfig ptp: ocp: add COMMON_CLK dependency 2021-09-20 11:11:54 +01:00
Makefile ptp: add ptp virtual clock driver framework 2021-07-01 13:08:18 -07:00
ptp_chardev.c
ptp_clock.c ptp: fix code indentation issues 2021-10-28 14:42:20 +01:00
ptp_clockmatrix.c ptp: ptp_clockmatrix: repair non-kernel-doc comment 2021-11-12 19:58:10 -08:00
ptp_clockmatrix.h ptp: clockmatrix: use rsmu driver to access i2c/spi bus 2021-09-27 12:16:48 +01:00
ptp_dte.c
ptp_idt82p33.c
ptp_idt82p33.h
ptp_ines.c net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX 2021-12-14 12:28:24 +00:00
ptp_kvm_arm.c ptp: arm/arm64: Enable ptp_kvm for arm/arm64 2021-04-07 16:33:20 +01:00
ptp_kvm_common.c ptp: Don't print an error if ptp_kvm is not supported 2021-04-20 17:17:55 +01:00
ptp_kvm_x86.c ptp: fix error print of ptp_kvm on X86_64 platform 2021-10-15 11:19:25 +01:00
ptp_ocp.c ptp: ocp: Fix a couple NULL vs IS_ERR() checks 2021-11-18 12:12:55 +00:00
ptp_pch.c ptp_pch: Load module automatically if ID matches 2021-10-02 16:13:00 +01:00
ptp_private.h ptp: add kernel API ptp_get_vclocks_index() 2021-07-01 13:08:18 -07:00
ptp_qoriq_debugfs.c
ptp_qoriq.c ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation 2021-03-24 12:10:03 -07:00
ptp_sysfs.c ptp: Fix possible memory leak caused by invalid cast 2021-08-08 12:56:41 +01:00
ptp_vclock.c net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets 2022-01-06 12:18:08 +00:00
ptp_vmw.c