From: Johannes Berg Date: Mon, 23 Aug 2010 08:46:50 +0000 (+0200) Subject: iwlagn: remove iw_mode check for beacon X-Git-Tag: firefly_0821_release~7613^2~3670^2~265^2^2~192^2~8 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=60744f62971cfa80cab36ab8c12afeae371fbe8b;p=firefly-linux-kernel-4.4.55.git iwlagn: remove iw_mode check for beacon Since we have the beacon context now, we no longer need to rely on iw_mode but can check the beacon context interface's type. However, that check must be in the work item instead due to locking constraints (mutex must be held when dereferencing beacon_ctx pointer). Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy --- diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index bad97f47eb9f..b07d397ed5a7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -613,6 +613,16 @@ static void iwl_bg_beacon_update(struct work_struct *work) goto out; } + if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { + /* + * The ucode will send beacon notifications even in + * IBSS mode, but we don't want to process them. But + * we need to defer the type check to here due to + * requiring locking around the beacon_ctx access. + */ + goto out; + } + /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); if (!beacon) { @@ -846,8 +856,7 @@ static void iwl_rx_beacon_notif(struct iwl_priv *priv, priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); - if ((priv->iw_mode == NL80211_IFTYPE_AP) && - (!test_bit(STATUS_EXIT_PENDING, &priv->status))) + if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) queue_work(priv->workqueue, &priv->beacon_update); }