1 files changed, 1 insertions, 11 deletions

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 81c21a893ede..e447ba037056 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -5302,25 +5302,22 @@ igc_features_check(struct sk_buff *skb, struct net_device *dev,
 
 static void igc_tsync_interrupt(struct igc_adapter *adapter)
 {
-	u32 ack, tsauxc, sec, nsec, tsicr;
 	struct igc_hw *hw = &adapter->hw;
+	u32 tsauxc, sec, nsec, tsicr;
 	struct ptp_clock_event event;
 	struct timespec64 ts;
 
 	tsicr = rd32(IGC_TSICR);
-	ack = 0;
 
 	if (tsicr & IGC_TSICR_SYS_WRAP) {
 		event.type = PTP_CLOCK_PPS;
 		if (adapter->ptp_caps.pps)
 			ptp_clock_event(adapter->ptp_clock, &event);
-		ack |= IGC_TSICR_SYS_WRAP;
 	}
 
 	if (tsicr & IGC_TSICR_TXTS) {
 		/* retrieve hardware timestamp */
 		igc_ptp_tx_tstamp_event(adapter);
-		ack |= IGC_TSICR_TXTS;
 	}
 
 	if (tsicr & IGC_TSICR_TT0) {
@@ -5334,7 +5331,6 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
 		wr32(IGC_TSAUXC, tsauxc);
 		adapter->perout[0].start = ts;
 		spin_unlock(&adapter->tmreg_lock);
-		ack |= IGC_TSICR_TT0;
 	}
 
 	if (tsicr & IGC_TSICR_TT1) {
@@ -5348,7 +5344,6 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
 		wr32(IGC_TSAUXC, tsauxc);
 		adapter->perout[1].start = ts;
 		spin_unlock(&adapter->tmreg_lock);
-		ack |= IGC_TSICR_TT1;
 	}
 
 	if (tsicr & IGC_TSICR_AUTT0) {
@@ -5358,7 +5353,6 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
 		event.index = 0;
 		event.timestamp = sec * NSEC_PER_SEC + nsec;
 		ptp_clock_event(adapter->ptp_clock, &event);
-		ack |= IGC_TSICR_AUTT0;
 	}
 
 	if (tsicr & IGC_TSICR_AUTT1) {
@@ -5368,11 +5362,7 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
 		event.index = 1;
 		event.timestamp = sec * NSEC_PER_SEC + nsec;
 		ptp_clock_event(adapter->ptp_clock, &event);
-		ack |= IGC_TSICR_AUTT1;
 	}
-
-	/* acknowledge the interrupts */
-	wr32(IGC_TSICR, ack);
 }
 
 /**