From fde9e742a47606110232b7464608b6f9c0510938 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 24 Dec 2016 10:27:08 +0000 Subject: net: mvneta: disable MVNETA_CAUSE_PSC_SYNC_CHANGE interrupt The PSC sync change interrupt can fire multiple times while the link is down. As this isn't information we make use of, it's pointless having the interrupt enabled, so let's disable this interrupt. Signed-off-by: Russell King --- drivers/net/ethernet/marvell/mvneta.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2705,8 +2705,7 @@ static int mvneta_poll(struct napi_struc mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0); if (cause_misc & (MVNETA_CAUSE_PHY_STATUS_CHANGE | - MVNETA_CAUSE_LINK_CHANGE | - MVNETA_CAUSE_PSC_SYNC_CHANGE)) + MVNETA_CAUSE_LINK_CHANGE)) mvneta_link_change(pp); } @@ -3045,8 +3044,7 @@ static void mvneta_start_dev(struct mvne mvreg_write(pp, MVNETA_INTR_MISC_MASK, MVNETA_CAUSE_PHY_STATUS_CHANGE | - MVNETA_CAUSE_LINK_CHANGE | - MVNETA_CAUSE_PSC_SYNC_CHANGE); + MVNETA_CAUSE_LINK_CHANGE); phylink_start(pp->phylink); netif_tx_start_all_queues(pp->dev); @@ -3542,8 +3540,7 @@ static int mvneta_cpu_online(unsigned in on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true); mvreg_write(pp, MVNETA_INTR_MISC_MASK, MVNETA_CAUSE_PHY_STATUS_CHANGE | - MVNETA_CAUSE_LINK_CHANGE | - MVNETA_CAUSE_PSC_SYNC_CHANGE); + MVNETA_CAUSE_LINK_CHANGE); netif_tx_start_all_queues(pp->dev); spin_unlock(&pp->lock); return 0; @@ -3584,8 +3581,7 @@ static int mvneta_cpu_dead(unsigned int on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true); mvreg_write(pp, MVNETA_INTR_MISC_MASK, MVNETA_CAUSE_PHY_STATUS_CHANGE | - MVNETA_CAUSE_LINK_CHANGE | - MVNETA_CAUSE_PSC_SYNC_CHANGE); + MVNETA_CAUSE_LINK_CHANGE); netif_tx_start_all_queues(pp->dev); return 0; }