diff options
Diffstat (limited to 'net/mac80211/driver-ops.h')
| -rw-r--r-- | net/mac80211/driver-ops.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index d231c9323ad1..020a94a31106 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -12,7 +12,11 @@ static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb) static inline int drv_start(struct ieee80211_local *local) { - int ret = local->ops->start(&local->hw); + int ret; + + local->started = true; + smp_mb(); + ret = local->ops->start(&local->hw); trace_drv_start(local, ret); return ret; } @@ -21,6 +25,14 @@ static inline void drv_stop(struct ieee80211_local *local) { local->ops->stop(&local->hw); trace_drv_stop(local); + + /* sync away all work on the tasklet before clearing started */ + tasklet_disable(&local->tasklet); + tasklet_enable(&local->tasklet); + + barrier(); + + local->started = false; } static inline int drv_add_interface(struct ieee80211_local *local, |