mac802154: util: add stop_device utility function

This patch adds ieee802154_stop_device for preparing a utility function
to stop the ieee802154 device.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

3 files changed, 11 insertions, 5 deletions

diff --git a/net/mac802154/ieee802154_i.h b/net/mac802154/ieee802154_i.h
index ed8746334bef..04077830e88c 100644
--- a/net/mac802154/ieee802154_i.h
+++ b/net/mac802154/ieee802154_i.h
@@ -176,5 +176,6 @@ ieee802154_if_add(struct ieee802154_local *local, const char *name,
                   unsigned char name_assign_type, enum nl802154_iftype type,
                   __le64 extended_addr);
 void ieee802154_remove_interfaces(struct ieee802154_local *local);
+void ieee802154_stop_device(struct ieee802154_local *local);
 
 #endif /* __IEEE802154_I_H */
diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index 4760368a3493..416de903e467 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -314,11 +314,8 @@ static int mac802154_slave_close(struct net_device *dev)
 
         clear_bit(SDATA_STATE_RUNNING, &sdata->state);
 
-        if (!local->open_count) {
-                flush_workqueue(local->workqueue);
-                hrtimer_cancel(&local->ifs_timer);
-                drv_stop(local);
-        }
+        if (!local->open_count)
+                ieee802154_stop_device(local);
 
         return 0;
 }
diff --git a/net/mac802154/util.c b/net/mac802154/util.c
index 583435f38930..f9fd0957ab67 100644
--- a/net/mac802154/util.c
+++ b/net/mac802154/util.c
@@ -14,6 +14,7 @@
  */
 
 #include "ieee802154_i.h"
+#include "driver-ops.h"
 
 /* privid for wpan_phys to determine whether they belong to us or not */
 const void *const mac802154_wpan_phy_privid = &mac802154_wpan_phy_privid;
@@ -92,3 +93,10 @@ void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb,
         dev_consume_skb_any(skb);
 }
 EXPORT_SYMBOL(ieee802154_xmit_complete);
+
+void ieee802154_stop_device(struct ieee802154_local *local)
+{
+        flush_workqueue(local->workqueue);
+        hrtimer_cancel(&local->ifs_timer);
+        drv_stop(local);
+}