Commit ca12cf5a authored by Richard Cochran's avatar Richard Cochran Committed by David S. Miller
Browse files

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



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: default avatarRichard Cochran <richardcochran@gmail.com>
Reviewed-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5a450eb3
......@@ -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;
......
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