From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Wed, 8 Feb 2012 07:51:22 +0000 (+0000)
Subject: ixgbe: cleanup logic for the service timer and VF hang detection
X-Git-Tag: v2.6.39-400.9.0~423^2~19^2~11^2~85
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=90be32bf0a3d20d82a571ef5876bb31e7fe91912;p=users%2Fjedix%2Flinux-maple.git

ixgbe: cleanup logic for the service timer and VF hang detection

This change just cleans up some of the logic in the service_timer function
so that we can avoid unnecessary swapping of the ready value between true to
false and back to true.

(cherry picked from commit 6bb78cfb50bfbaf90646a80448ee8de2372e292a)
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
---

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 79b645e4f63d..c306d53c3e42 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -6409,41 +6409,32 @@ static void ixgbe_service_timer(unsigned long data)
 	unsigned long next_event_offset;
 	bool ready = true;
 
-#ifdef CONFIG_PCI_IOV
-	ready = false;
+	/* poll faster when waiting for link */
+	if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)
+		next_event_offset = HZ / 10;
+	else
+		next_event_offset = HZ * 2;
 
+#ifdef CONFIG_PCI_IOV
 	/*
 	 * don't bother with SR-IOV VF DMA hang check if there are
 	 * no VFs or the link is down
 	 */
 	if (!adapter->num_vfs ||
-	    (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) {
-		ready = true;
+	    (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE))
 		goto normal_timer_service;
-	}
 
 	/* If we have VFs allocated then we must check for DMA hangs */
 	ixgbe_check_for_bad_vf(adapter);
 	next_event_offset = HZ / 50;
 	adapter->timer_event_accumulator++;
 
-	if (adapter->timer_event_accumulator >= 100) {
-		ready = true;
+	if (adapter->timer_event_accumulator >= 100)
 		adapter->timer_event_accumulator = 0;
-	}
-
-	goto schedule_event;
-
-normal_timer_service:
-#endif
-	/* poll faster when waiting for link */
-	if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)
-		next_event_offset = HZ / 10;
 	else
-		next_event_offset = HZ * 2;
+		ready = false;
 
-#ifdef CONFIG_PCI_IOV
-schedule_event:
+normal_timer_service:
 #endif
 	/* Reset the timer */
 	mod_timer(&adapter->service_timer, next_event_offset + jiffies);