orinoco: Provide option to avoid unnecessary fw caching

Make firmware caching on startup optional, and make it default.

When the option is not selected and PM_SLEEP is configured, then
cache firmware in the suspend pm_notifier. This configuration saves
about 64k RAM in normal use, but can lead to a situation where the
driver is configured to use a different firmware.

Signed-off by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 7ea916b257e4..ea543fcf2687 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -214,6 +214,21 @@ config HERMES
           configure your card and that /etc/pcmcia/wireless.opts works :
           <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>
 
+config HERMES_CACHE_FW_ON_INIT
+        bool "Cache Hermes firmware on driver initialisation"
+        depends on HERMES
+        default y
+        ---help---
+          Say Y to cache any firmware required by the Hermes drivers
+          on startup.  The firmware will remain cached until the
+          driver is unloaded.  The cache uses 64K of RAM.
+
+          Otherwise load the firmware from userspace as required.  In
+          this case the driver should be unloaded and restarted
+          whenever the firmware is changed.
+
+          If you are not sure, say Y.
+
 config APPLE_AIRPORT
         tristate "Apple Airport support (built-in)"
         depends on PPC_PMAC && HERMES