From eed635699abaacebc9b19a2f9de9ddc688c390c2 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 20 Aug 2015 18:04:22 -0700 Subject: [PATCH] net: bcmgenet: Avoid sleeping in bcmgenet_timeout bcmgenet_timeout() executes in atomic context, yet we will invoke napi_disable() which does sleep. Looking back at the changes, disabling TX napi and re-enabling it is completely useless, since we reclaim all TX buffers and re-enable interrupts, and wake up the TX queues. Fixes: 13ea657806cf ("net: bcmgenet: improve TX timeout") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 64c1e9db6b0b..12a020c105bb 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -2820,8 +2820,6 @@ static void bcmgenet_timeout(struct net_device *dev) netif_dbg(priv, tx_err, dev, "bcmgenet_timeout\n"); - bcmgenet_disable_tx_napi(priv); - for (q = 0; q < priv->hw_params->tx_queues; q++) bcmgenet_dump_tx_queue(&priv->tx_rings[q]); bcmgenet_dump_tx_queue(&priv->tx_rings[DESC_INDEX]); @@ -2837,8 +2835,6 @@ static void bcmgenet_timeout(struct net_device *dev) bcmgenet_intrl2_0_writel(priv, int0_enable, INTRL2_CPU_MASK_CLEAR); bcmgenet_intrl2_1_writel(priv, int1_enable, INTRL2_CPU_MASK_CLEAR); - bcmgenet_enable_tx_napi(priv); - dev->trans_start = jiffies; dev->stats.tx_errors++; -- 2.34.1