ptp: Pass hwtstamp to ptp_convert_timestamp()

ptp_convert_timestamp() converts only the timestamp hwtstamp, which is
a field of the argument with the type struct skb_shared_hwtstamps *. So
a pointer to the hwtstamp field of this structure is sufficient.

Rework ptp_convert_timestamp() to use an argument of type ktime_t *.
This allows to add additional timestamp manipulation stages before the
call of ptp_convert_timestamp().

Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
index ad309202cf9f..92b44161408e 100644
--- a/include/linux/ptp_clock_kernel.h
+++ b/include/linux/ptp_clock_kernel.h
@@ -384,17 +384,16 @@ int ptp_get_vclocks_index(int pclock_index, int **vclock_index);
 /**
  * ptp_convert_timestamp() - convert timestamp to a ptp vclock time
  *
- * @hwtstamps:    skb_shared_hwtstamps structure pointer
+ * @hwtstamp:     timestamp
  * @vclock_index: phc index of ptp vclock.
  *
  * Returns converted timestamp, or 0 on error.
  */
-ktime_t ptp_convert_timestamp(const struct skb_shared_hwtstamps *hwtstamps,
-			      int vclock_index);
+ktime_t ptp_convert_timestamp(const ktime_t *hwtstamp, int vclock_index);
 #else
 static inline int ptp_get_vclocks_index(int pclock_index, int **vclock_index)
 { return 0; }
-static inline ktime_t ptp_convert_timestamp(const struct skb_shared_hwtstamps *hwtstamps,
+static inline ktime_t ptp_convert_timestamp(const ktime_t *hwtstamp,
 					    int vclock_index)
 { return 0; }