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>

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index f749b40..11f143f 100644 (file)
--- 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"