compat-wireless: remove olpc_ec_wakeup_* calls for pre-3.1 kernels

This section of the libertas driver calls functions that simply don't
exist before the release of 3.1.  This code in question was an addition,
not a change from any existing code.  It is safe to simply remove it for
older kernels.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@frijolero.org>

diff --git a/patches/50-libertas-olpc-ec-wakeup.patch b/patches/50-libertas-olpc-ec-wakeup.patch
new file mode 100644 (file)
index 0000000..13413af
--- /dev/null
+++ b/patches/50-libertas-olpc-ec-wakeup.patch
@@ -0,0 +1,25 @@
+This section of the libertas driver calls functions that simply don't
+exist before the release of 3.1.  This code in question was an addition,
+not a change from any existing code.  It is safe to simply remove it for
+older kernels.
+
+diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
+index b5fbbc7..513ae29 100644
+--- a/drivers/net/wireless/libertas/if_usb.c
++++ b/drivers/net/wireless/libertas/if_usb.c
+@@ -1133,6 +1133,7 @@ static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
+       if (priv->psstate != PS_STATE_FULL_POWER)
+               return -1;
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
+ #ifdef CONFIG_OLPC
+       if (machine_is_olpc()) {
+               if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
+@@ -1141,6 +1142,7 @@ static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
+                       olpc_ec_wakeup_set(EC_SCI_SRC_WLAN);
+       }
+ #endif
++#endif
+ 
+       ret = lbs_suspend(priv);
+       if (ret)