iwlagn: workqueue moves to iwl_shared

Since it is used by all the layers, it needs to move to iwl_shared.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-shared.h b/drivers/net/wireless/iwlwifi/iwl-shared.h
index 0562174..85d5a62 100644
--- a/drivers/net/wireless/iwlwifi/iwl-shared.h
+++ b/drivers/net/wireless/iwlwifi/iwl-shared.h
@@ -147,6 +147,7 @@
  * @bus: pointer to the bus layer data
  * @priv: pointer to the upper layer data
  * @hw_params: see struct iwl_hw_params
+ * @workqueue: the workqueue used by all the layers of the driver
  */
 struct iwl_shared {
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -158,6 +159,8 @@
 	struct iwl_bus *bus;
 	struct iwl_priv *priv;
 	struct iwl_hw_params hw_params;
+
+	struct workqueue_struct *workqueue;
 };
 
 /*Whatever _m is (iwl_trans, iwl_priv, iwl_bus, these macros will work */