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path: root/drivers/net/wireless/iwlwifi/iwl-bus.h
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-bus.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-bus.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-bus.h b/drivers/net/wireless/iwlwifi/iwl-bus.h
index e1cb65c45395..83aed46673e1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-bus.h
+++ b/drivers/net/wireless/iwlwifi/iwl-bus.h
@@ -66,6 +66,7 @@
/*This file includes the declaration that are exported from the bus layer */
#include <linux/types.h>
+#include <linux/spinlock.h>
struct iwl_shared;
struct iwl_bus;
@@ -96,6 +97,7 @@ struct iwl_bus_ops {
* @ops - pointer to iwl_bus_ops
* @shrd - pointer to iwl_shared which holds shared data from the upper layer
* @irq - the irq number for the device
+ * @reg_lock - protect hw register access
*/
struct iwl_bus {
/* Common data to all buses */
@@ -104,6 +106,7 @@ struct iwl_bus {
struct iwl_shared *shrd;
unsigned int irq;
+ spinlock_t reg_lock;
/* pointer to bus specific struct */
/*Ensure that this pointer will always be aligned to sizeof pointer */