From df01093bb08916f434ebedde4610805d4105d05f Mon Sep 17 00:00:00 2001 From: Mike McCormack Date: Thu, 13 May 2010 06:12:49 +0000 Subject: [PATCH] sky2: Avoid race in sky2_change_mtu netif_stop_queue does not ensure all in-progress transmits are complete, so use netif_tx_disable() instead. Secondly, make sure NAPI polls are disabled before stopping the tx queue, otherwise sky2_status_intr might trigger a TX queue wakeup between when we stop the queue and NAPI is disabled. Signed-off-by: Mike McCormack Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/sky2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 15da5e419eb1..efc31e93eb78 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -2275,8 +2275,8 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu) sky2_write32(hw, B0_IMSK, 0); dev->trans_start = jiffies; /* prevent tx timeout */ - netif_stop_queue(dev); napi_disable(&hw->napi); + netif_tx_disable(dev); synchronize_irq(hw->pdev->irq); -- 2.20.1