From abba4b16fddda9a1012140dab4a9965045a77179 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Mon, 2 Nov 2020 00:22:56 +0100 Subject: [PATCH] net: dpaa: Replace in_irq() usage. The driver uses in_irq() + in_serving_softirq() magic to decide if NAPI scheduling is required or packet processing. The usage of in_*() in drivers is phased out and Linus clearly requested that code which changes behaviour depending on context should either be separated or the context be conveyed in an argument passed by the caller, which usually knows the context. Use the `sched_napi' argument passed by the callback. It is set true if called from the interrupt handler and NAPI should be scheduled. Signed-off-by: Sebastian Andrzej Siewior Cc: Aymen Sghaier Cc: Herbert Xu Cc: Li Yang Signed-off-by: Jakub Kicinski Reviewed-by: Madalin Bucur Tested-by: Camelia Groza --- drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index 98ead77c673e..39c996b64cce 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -2300,9 +2300,9 @@ static void dpaa_tx_conf(struct net_device *net_dev, } static inline int dpaa_eth_napi_schedule(struct dpaa_percpu_priv *percpu_priv, - struct qman_portal *portal) + struct qman_portal *portal, bool sched_napi) { - if (unlikely(in_irq() || !in_serving_softirq())) { + if (sched_napi) { /* Disable QMan IRQ and invoke NAPI */ qman_p_irqsource_remove(portal, QM_PIRQ_DQRI); @@ -2333,7 +2333,7 @@ static enum qman_cb_dqrr_result rx_error_dqrr(struct qman_portal *portal, percpu_priv = this_cpu_ptr(priv->percpu_priv); - if (dpaa_eth_napi_schedule(percpu_priv, portal)) + if (dpaa_eth_napi_schedule(percpu_priv, portal, sched_napi)) return qman_cb_dqrr_stop; dpaa_eth_refill_bpools(priv); @@ -2377,7 +2377,7 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal, percpu_priv = this_cpu_ptr(priv->percpu_priv); percpu_stats = &percpu_priv->stats; - if (unlikely(dpaa_eth_napi_schedule(percpu_priv, portal))) + if (unlikely(dpaa_eth_napi_schedule(percpu_priv, portal, sched_napi))) return qman_cb_dqrr_stop; /* Make sure we didn't run out of buffers */ @@ -2474,7 +2474,7 @@ static enum qman_cb_dqrr_result conf_error_dqrr(struct qman_portal *portal, percpu_priv = this_cpu_ptr(priv->percpu_priv); - if (dpaa_eth_napi_schedule(percpu_priv, portal)) + if (dpaa_eth_napi_schedule(percpu_priv, portal, sched_napi)) return qman_cb_dqrr_stop; dpaa_tx_error(net_dev, priv, percpu_priv, &dq->fd, fq->fqid); @@ -2499,7 +2499,7 @@ static enum qman_cb_dqrr_result conf_dflt_dqrr(struct qman_portal *portal, percpu_priv = this_cpu_ptr(priv->percpu_priv); - if (dpaa_eth_napi_schedule(percpu_priv, portal)) + if (dpaa_eth_napi_schedule(percpu_priv, portal, sched_napi)) return qman_cb_dqrr_stop; dpaa_tx_conf(net_dev, priv, percpu_priv, &dq->fd, fq->fqid);