net: kconfig cleanup

The bool kconfig option added to ixgbe and myri10ge for DCA is ambigous,
so this patch adds a description to the kconfig option.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 15 insertions, 3 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index f749b40f954e..11f143f4adf6 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2010,9 +2010,13 @@ config IGB_LRO
           If in doubt, say N.
 
 config IGB_DCA
-        bool "Enable DCA"
+        bool "Direct Cache Access (DCA) Support"
         default y
         depends on IGB && DCA && !(IGB=y && DCA=m)
+        ---help---
+          Say Y here if you want to use Direct Cache Access (DCA) in the
+          driver.  DCA is a method for warming the CPU cache before data
+          is used, with the intent of lessening the impact of cache misses.
 
 source "drivers/net/ixp2000/Kconfig"
 
@@ -2437,9 +2441,13 @@ config IXGBE
           will be called ixgbe.
 
 config IXGBE_DCA
-        bool
+        bool "Direct Cache Access (DCA) Support"
         default y
         depends on IXGBE && DCA && !(IXGBE=y && DCA=m)
+        ---help---
+          Say Y here if you want to use Direct Cache Access (DCA) in the
+          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 IXGB
         tristate "Intel(R) PRO/10GbE support"
@@ -2489,9 +2497,13 @@ config MYRI10GE
           will be called myri10ge.
 
 config MYRI10GE_DCA
-        bool
+        bool "Direct Cache Access (DCA) Support"
         default y
         depends on MYRI10GE && DCA && !(MYRI10GE=y && DCA=m)
+        ---help---
+          Say Y here if you want to use Direct Cache Access (DCA) in the
+          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 NETXEN_NIC
         tristate "NetXen Multi port (1/10) Gigabit Ethernet NIC"