3.8: add network fix from: https://groups.google.com/d/msg/beagleboar…

…d/mfQwHdfHyoo/SA9EnjpXoAsJ

Signed-off-by: Robert Nelson <[email protected]>

patches/net/0007-net-cpsw-fix-irq_disable-with-threaded-interrupts.patch

@@ -0,0 +1,72 @@
+From f7351e25e37cdd7fab871af5f66dbebe36a3d658 Mon Sep 17 00:00:00 2001
+From: Robert Nelson <[email protected]>
+Date: Fri, 3 Jan 2014 10:39:30 -0600
+Subject: [PATCH 7/7] net/cpsw: fix irq_disable() with threaded interrupts
+
+https://groups.google.com/d/msg/beagleboard/mfQwHdfHyoo/SA9EnjpXoAsJ
+
+Signed-off-by: Eugene <[email protected]>
+Signed-off-by: Robert Nelson <[email protected]>
+---
+ drivers/net/ethernet/ti/cpsw.c | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
+index 21ba53e..9c72a69 100644
+--- a/drivers/net/ethernet/ti/cpsw.c
++++ b/drivers/net/ethernet/ti/cpsw.c
+@@ -342,6 +342,7 @@ struct cpsw_priv {
+ 	/* snapshot of IRQ numbers */
+ 	u32 irqs_table[4];
+ 	u32 num_irqs;
++	bool irq_enabled;
+ 	struct cpts cpts;
+ };
+
+@@ -458,7 +459,10 @@ static irqreturn_t cpsw_interrupt(int irq, void *dev_id)
+
+ 	if (likely(netif_running(priv->ndev))) {
+ 		cpsw_intr_disable(priv);
+-		cpsw_disable_irq(priv);
++		if (priv->irq_enabled == true) {
++			cpsw_disable_irq(priv);
++			priv->irq_enabled = false;
++		}
+ 		napi_schedule(&priv->napi);
+ 	}
+
+@@ -512,7 +516,10 @@ static int cpsw_poll(struct napi_struct *napi, int budget)
+ 	if ((num_total_rx + num_total_tx) < budget) {
+ 		napi_complete(napi);
+ 		cpsw_intr_enable(priv);
+-		cpsw_enable_irq(priv);
++		if (priv->irq_enabled == false) {
++			cpsw_enable_irq(priv);
++			priv->irq_enabled = true;
++		}
+ 	}
+
+ 	return num_total_rx + num_total_rx;
+@@ -812,7 +819,10 @@ static int cpsw_ndo_stop(struct net_device *ndev)
+ 	struct cpsw_priv *priv = netdev_priv(ndev);
+
+ 	cpsw_info(priv, ifdown, "shutting down cpsw device\n");
+-	cpsw_disable_irq(priv);
++	if (priv->irq_enabled == true) {
++		cpsw_disable_irq(priv);
++		priv->irq_enabled = false;
++	}
+ 	netif_stop_queue(priv->ndev);
+ 	if (!priv->data.disable_napi)
+ 		napi_disable(&priv->napi);
+@@ -1306,6 +1316,7 @@ static int cpsw_probe(struct platform_device *pdev)
+ 	priv->dev  = &ndev->dev;
+ 	priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
+ 	priv->rx_packet_max = max(rx_packet_max, 128);
++	priv->irq_enabled = false;
+
+ 	/*
+ 	 * This may be required here for child devices.
+-- 
+1.8.5.2
+