From: Stephen Hemminger <shemminger@osdl.org>
Date: Wed, 12 Jul 2006 22:23:46 +0000 (-0700)
Subject: [PATCH] sky2: NAPI suspend/resume of dual port cards
X-Git-Tag: firefly_0821_release~34217^2~2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6a5706b99c98e3c974cf5b55324e4eed7f82e55a;p=firefly-linux-kernel-4.4.55.git

[PATCH] sky2: NAPI suspend/resume of dual port cards

The changes to handle suspend/resume didn't handle the case where
a dual port card has the first port down, but the second is running.
In this driver, all NAPI polling is done on the primary port.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 4af3b86f62b8..5e8f9efd90a9 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -3437,17 +3437,14 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
 		return -EINVAL;
 
 	del_timer_sync(&hw->idle_timer);
+	netif_poll_disable(hw->dev[0]);
 
 	for (i = 0; i < hw->ports; i++) {
 		struct net_device *dev = hw->dev[i];
 
-		if (dev) {
-			if (!netif_running(dev))
-				continue;
-
+		if (netif_running(dev)) {
 			sky2_down(dev);
 			netif_device_detach(dev);
-			netif_poll_disable(dev);
 		}
 	}
 
@@ -3474,9 +3471,8 @@ static int sky2_resume(struct pci_dev *pdev)
 
 	for (i = 0; i < hw->ports; i++) {
 		struct net_device *dev = hw->dev[i];
-		if (dev && netif_running(dev)) {
+		if (netif_running(dev)) {
 			netif_device_attach(dev);
-			netif_poll_enable(dev);
 
 			err = sky2_up(dev);
 			if (err) {
@@ -3488,6 +3484,7 @@ static int sky2_resume(struct pci_dev *pdev)
 		}
 	}
 
+	netif_poll_enable(hw->dev[0]);
 	sky2_idle_start(hw);
 out:
 	return err;