diff options
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 3 | ||||
| -rw-r--r-- | net/mac80211/main.c | 7 | ||||
| -rw-r--r-- | net/mac80211/rx.c | 4 | ||||
| -rw-r--r-- | net/mac80211/util.c | 3 |
4 files changed, 17 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index e6cbf5b68c89..ddf768f6350e 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -881,6 +881,9 @@ struct ieee80211_local { /* device is started */ bool started; + /* device is during a HW reconfig */ + bool in_reconfig; + /* wowlan is enabled -- don't reconfig on resume */ bool wowlan; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index d81c178c7712..976e41365c25 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -345,6 +345,13 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw) ieee80211_stop_queues_by_reason(hw, IEEE80211_QUEUE_STOP_REASON_SUSPEND); + /* + * Stop all Rx during the reconfig. We don't want state changes + * or driver callbacks while this is in progress. + */ + local->in_reconfig = true; + barrier(); + schedule_work(&local->restart_work); } EXPORT_SYMBOL(ieee80211_restart_hw); diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 6fd2cb0838c4..072e8f3afa2b 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3027,6 +3027,10 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) if (unlikely(local->quiescing || local->suspended)) goto drop; + /* We might be during a HW reconfig, prevent Rx for the same reason */ + if (unlikely(local->in_reconfig)) + goto drop; + /* * The same happens when we're not even started, * but that's worth a warning. diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 1df4019f294b..242ecde381f6 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1411,6 +1411,9 @@ int ieee80211_reconfig(struct ieee80211_local *local) if (ieee80211_sdata_running(sdata)) ieee80211_enable_keys(sdata); + local->in_reconfig = false; + barrier(); + wake_up: /* * Clear the WLAN_STA_BLOCK_BA flag so new aggregation |