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authorJakub Kicinski <kuba@kernel.org>2021-12-16 16:13:19 -0800
committerJakub Kicinski <kuba@kernel.org>2021-12-16 16:13:19 -0800
commit7cd2802d7496c1fc76f42dc045b48cc16d11df39 (patch)
tree41c33f5944bbc686a489801762eb126e07049b81 /drivers/net/ethernet/intel/ice/ice_ptp.c
parent0f473bb6ed2d0b8533a079ee133f625f83de5315 (diff)
parent6441998e2e37131b0a4c310af9156d79d3351c16 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_ptp.c')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_ptp.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index dfc7c830acf6..0014a1002ed3 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -705,7 +705,7 @@ static int ice_ptp_adjfine(struct ptp_clock_info *info, long scaled_ppm)
scaled_ppm = -scaled_ppm;
}
- while ((u64)scaled_ppm > div_u64(U64_MAX, incval)) {
+ while ((u64)scaled_ppm > div64_u64(U64_MAX, incval)) {
/* handle overflow by scaling down the scaled_ppm and
* the divisor, losing some precision
*/
@@ -1536,19 +1536,16 @@ static void ice_ptp_tx_tstamp_work(struct kthread_work *work)
if (err)
continue;
- /* Check if the timestamp is valid */
- if (!(raw_tstamp & ICE_PTP_TS_VALID))
+ /* Check if the timestamp is invalid or stale */
+ if (!(raw_tstamp & ICE_PTP_TS_VALID) ||
+ raw_tstamp == tx->tstamps[idx].cached_tstamp)
continue;
- /* clear the timestamp register, so that it won't show valid
- * again when re-used.
- */
- ice_clear_phy_tstamp(hw, tx->quad, phy_idx);
-
/* The timestamp is valid, so we'll go ahead and clear this
* index and then send the timestamp up to the stack.
*/
spin_lock(&tx->lock);
+ tx->tstamps[idx].cached_tstamp = raw_tstamp;
clear_bit(idx, tx->in_use);
skb = tx->tstamps[idx].skb;
tx->tstamps[idx].skb = NULL;