ice: add lock around Tx timestamp tracker flush

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The driver didn't take the lock while flushing the Tx tracker, which
could cause a race where one thread is trying to read timestamps out
while another thread is trying to read the tracker to check the
timestamps.

Avoid this by ensuring that flushing is locked against read accesses.

Fixes: ea9b847cda ("ice: enable transmit timestamps for E810 devices")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

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Jacob Keller 2021-08-23 17:01:48 -07:00 • committed by Tony Nguyen

parent 1f0cbb3e89

commit 4dd0d5c33c

1 changed files with 4 additions and 0 deletions

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drivers/net/ethernet/intel/ice/ice_ptp.c

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