DCB: fix kconfig option

Since the netlink option for DCB is necessary to actually be useful,
simplified the Kconfig option.  In addition, added useful help text for the
Kconfig option.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index efd461d..75f9f7f 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2451,10 +2451,10 @@
 	  driver.  DCA is a method for warming the CPU cache before data
 	  is used, with the intent of lessening the impact of cache misses.
 
-config IXGBE_DCBNL
+config IXGBE_DCB
 	bool "Data Center Bridging (DCB) Support"
 	default n
-	depends on IXGBE && DCBNL
+	depends on IXGBE && DCB
 	---help---
 	  Say Y here if you want to use Data Center Bridging (DCB) in the
 	  driver.
diff --git a/drivers/net/ixgbe/Makefile b/drivers/net/ixgbe/Makefile
index 3228e50..6e7ef76 100644
--- a/drivers/net/ixgbe/Makefile
+++ b/drivers/net/ixgbe/Makefile
@@ -35,4 +35,4 @@
 ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o \
               ixgbe_82598.o ixgbe_phy.o
 
-ixgbe-$(CONFIG_IXGBE_DCBNL) +=  ixgbe_dcb.o ixgbe_dcb_82598.o ixgbe_dcb_nl.o
+ixgbe-$(CONFIG_IXGBE_DCB) +=  ixgbe_dcb.o ixgbe_dcb_82598.o ixgbe_dcb_nl.o
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index 9509aee..6cbf26e 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -327,7 +327,7 @@
 };
 
 extern struct ixgbe_info ixgbe_82598_info;
-#ifdef CONFIG_IXGBE_DCBNL
+#ifdef CONFIG_IXGBE_DCB
 extern struct dcbnl_rtnl_ops dcbnl_ops;
 extern int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
                               struct ixgbe_dcb_config *dst_dcb_cfg,
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 6620397..667a646 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1914,7 +1914,7 @@
 	}
 }
 
-#ifdef CONFIG_IXGBE_DCBNL
+#ifdef CONFIG_IXGBE_DCB
 /*
  * ixgbe_configure_dcb - Configure DCB hardware
  * @adapter: ixgbe adapter struct
@@ -1960,7 +1960,7 @@
 	ixgbe_set_rx_mode(netdev);
 
 	ixgbe_restore_vlan(adapter);
-#ifdef CONFIG_IXGBE_DCBNL
+#ifdef CONFIG_IXGBE_DCB
 	if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
 		netif_set_gso_max_size(netdev, 32768);
 		ixgbe_configure_dcb(adapter);
@@ -2749,7 +2749,7 @@
 	struct ixgbe_hw *hw = &adapter->hw;
 	struct pci_dev *pdev = adapter->pdev;
 	unsigned int rss;
-#ifdef CONFIG_IXGBE_DCBNL
+#ifdef CONFIG_IXGBE_DCB
 	int j;
 	struct tc_configuration *tc;
 #endif
@@ -2768,7 +2768,7 @@
 	adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
 	adapter->ring_feature[RING_F_DCB].indices = IXGBE_MAX_DCB_INDICES;
 
-#ifdef CONFIG_IXGBE_DCBNL
+#ifdef CONFIG_IXGBE_DCB
 	/* Configure DCB traffic classes */
 	for (j = 0; j < MAX_TRAFFIC_CLASS; j++) {
 		tc = &adapter->dcb_cfg.tc_config[j];
@@ -4120,7 +4120,7 @@
 	if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
 		adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
 
-#ifdef CONFIG_IXGBE_DCBNL
+#ifdef CONFIG_IXGBE_DCB
 	netdev->dcbnl_ops = &dcbnl_ops;
 #endif