From: Lendacky, Thomas Date: Wed, 2 Jul 2014 18:04:40 +0000 (-0500) Subject: amd-xgbe: Call netif_napi_del on ndo_stop operation X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ff42606eed00bc065365f55269d558c06b968594;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git amd-xgbe: Call netif_napi_del on ndo_stop operation Currently the napi context is added using netif_napi_add each time the ndo_open operation is called. However, there is not a corresponding netif_napi_del call during the ndo_stop operation. If the device ndo_open operation was called more than once an infinite loop occurs during module unload. Add a call to netif_napi_del during the ndo_stop operation. Signed-off-by: Tom Lendacky Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index 72dd61166a1c..b5fdf66f9a56 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -412,9 +412,12 @@ static void xgbe_napi_enable(struct xgbe_prv_data *pdata, unsigned int add) napi_enable(&pdata->napi); } -static void xgbe_napi_disable(struct xgbe_prv_data *pdata) +static void xgbe_napi_disable(struct xgbe_prv_data *pdata, unsigned int del) { napi_disable(&pdata->napi); + + if (del) + netif_napi_del(&pdata->napi); } void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata) @@ -518,7 +521,7 @@ int xgbe_powerdown(struct net_device *netdev, unsigned int caller) netif_device_detach(netdev); netif_tx_stop_all_queues(netdev); - xgbe_napi_disable(pdata); + xgbe_napi_disable(pdata, 0); /* Powerdown Tx/Rx */ hw_if->powerdown_tx(pdata); @@ -607,7 +610,7 @@ static void xgbe_stop(struct xgbe_prv_data *pdata) phy_stop(pdata->phydev); netif_tx_stop_all_queues(netdev); - xgbe_napi_disable(pdata); + xgbe_napi_disable(pdata, 1); xgbe_stop_tx_timers(pdata);