iwlwifi: move register access lock into transport

Move the reg_lock that protects HW register access
into the transport implementation. Locking is no
longer exposed, but handled internally in grab and
release NIC access. This simplifies the users.

Signed-off-by: Lilach Edelstein <lilach.edelstein@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h
index 21395fae03c0..5f6bb4e09d42 100644
--- a/drivers/net/wireless/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/iwlwifi/pcie/internal.h
@@ -235,6 +235,7 @@ struct iwl_txq {
  * @bc_table_dword: true if the BC table expects DWORD (as opposed to bytes)
  * @rx_page_order: page order for receive buffer size
  * @wd_timeout: queue watchdog timeout (jiffies)
+ * @reg_lock: protect hw register access
  */
 struct iwl_trans_pcie {
         struct iwl_rxq rxq;
@@ -283,6 +284,9 @@ struct iwl_trans_pcie {
 
         /* queue watchdog */
         unsigned long wd_timeout;
+
+        /*protect hw register */
+        spinlock_t reg_lock;
 };
 
 /**