diff mbox

[net-next,3/5] amd-xgbe: Call netif_napi_del on ndo_stop operation

Message ID 20140702180440.14996.76357.stgit@tlendack-t1.amdoffice.net
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Tom Lendacky July 2, 2014, 6:04 p.m. UTC 
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 <thomas.lendacky@amd.com>
---
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)


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diff mbox

Patch

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 72dd611..b5fdf66 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);