kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mlx5: Reject requests to enable time stamping on both edges.

Browse source 
This driver enables rising edge or falling edge, but not both, and so
this patch validates that the request contains only one of the two
edges.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Cochran 2019-11-14 10:45:06 -08:00 • committed by David S. Miller
parent 5a450eb388
commit ca12cf5ac9
1 changed files with 6 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
View file

@ -243,6 +243,12 @@ static int mlx5_extts_configure(struct ptp_clock_info *ptp,
PTP_STRICT_FLAGS))
return -EOPNOTSUPP;
/* Reject requests to enable time stamping on both edges. */
if ((rq->extts.flags & PTP_STRICT_FLAGS) &&
(rq->extts.flags & PTP_ENABLE_FEATURE) &&
(rq->extts.flags & PTP_EXTTS_EDGES) == PTP_EXTTS_EDGES)
return -EOPNOTSUPP;
if (rq->extts.index >= clock->ptp_info.n_pins)
return -EINVAL;