sfc: PTP - tidy up unused/useless variables

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index be7ed4e..82d8e27 100644 (file)
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -237,9 +237,6 @@ struct efx_ptp_timeset {
  * @evt_code: Last event code
  * @start: Address at which MC indicates ready for synchronisation
  * @host_time_pps: Host time at last PPS
- * @last_sync_ns: Last number of nanoseconds between readings when synchronising
- * @base_sync_ns: Number of nanoseconds for last synchronisation.
- * @base_sync_valid: Whether base_sync_time is valid.
  * @current_adjfreq: Current ppb adjustment.
  * @phc_clock: Pointer to registered phc device
  * @phc_clock_info: Registration structure for phc device
@@ -274,9 +271,6 @@ struct efx_ptp_data {
        int evt_code;
        struct efx_buffer start;
        struct pps_event_time host_time_pps;
-       unsigned last_sync_ns;
-       unsigned base_sync_ns;
-       bool base_sync_valid;
        s64 current_adjfreq;
        struct ptp_clock *phc_clock;
        struct ptp_clock_info phc_clock_info;
@@ -482,18 +476,10 @@ efx_ptp_process_times(struct efx_nic *efx, MCDI_DECLARE_STRUCT_PTR(synch_buf),
 
        if (ngood == 0) {
                netif_warn(efx, drv, efx->net_dev,
-                          "PTP no suitable synchronisations %dns\n",
-                          ptp->base_sync_ns);
+                          "PTP no suitable synchronisations\n");
                return -EAGAIN;
        }
 
-       /* Average minimum this synchronisation */
-       ptp->last_sync_ns = DIV_ROUND_UP(total, ngood);
-       if (!ptp->base_sync_valid || (ptp->last_sync_ns < ptp->base_sync_ns)) {
-               ptp->base_sync_valid = true;
-               ptp->base_sync_ns = ptp->last_sync_ns;
-       }
-
        /* Calculate delay from actual PPS to last_time */
        delta.tv_nsec =
                ptp->timeset[last_good].nanoseconds +