iwlwifi: pass context to iwl_send_rxon_timing

Sometimes we need to send RXON timing even
when we don't have a virtual interface yet,
so pass the context and allow passing one
without a virtual interface pointer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

4 files changed, 15 insertions, 19 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index f2884b5ca5b4..85eea944498e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -183,14 +183,12 @@ int iwl_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
         iwl_set_rxon_hwcrypto(priv, ctx, !priv->cfg->mod_params->sw_crypto);
 
         if (new_assoc) {
-                if (WARN_ON(!ctx->vif))
-                        return -EINVAL;
                 /*
                  * First of all, before setting associated, we need to
                  * send RXON timing so the device knows about the DTIM
                  * period and other timing values
                  */
-                ret = iwl_send_rxon_timing(priv, ctx->vif);
+                ret = iwl_send_rxon_timing(priv, ctx);
                 if (ret) {
                         IWL_ERR(priv, "Error setting RXON timing!\n");
                         return ret;
@@ -3296,7 +3294,7 @@ void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif)
         ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
         iwlcore_commit_rxon(priv, ctx);
 
-        ret = iwl_send_rxon_timing(priv, vif);
+        ret = iwl_send_rxon_timing(priv, ctx);
         if (ret)
                 IWL_WARN(priv, "RXON timing - "
                             "Attempting to continue.\n");
@@ -3536,7 +3534,7 @@ void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif)
                 iwlcore_commit_rxon(priv, ctx);
 
                 /* RXON Timing */
-                ret = iwl_send_rxon_timing(priv, vif);
+                ret = iwl_send_rxon_timing(priv, ctx);
                 if (ret)
                         IWL_WARN(priv, "RXON timing failed - "
                                         "Attempting to continue.\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index b61b838a24b5..91ca5173e862 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -500,13 +500,13 @@ static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
         return new_val;
 }
 
-int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
+int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 {
         u64 tsf;
         s32 interval_tm, rem;
         struct ieee80211_conf *conf = NULL;
         u16 beacon_int;
-        struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
+        struct ieee80211_vif *vif = ctx->vif;
 
         conf = ieee80211_get_hw_conf(priv->hw);
 
@@ -517,15 +517,13 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
         ctx->timing.timestamp = cpu_to_le64(priv->timestamp);
         ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval);
 
-        beacon_int = vif->bss_conf.beacon_int;
+        beacon_int = vif ? vif->bss_conf.beacon_int : 0;
 
-        if (vif->type == NL80211_IFTYPE_ADHOC) {
-                /* TODO: we need to get atim_window from upper stack
-                 * for now we set to 0 */
-                ctx->timing.atim_window = 0;
-        } else {
-                ctx->timing.atim_window = 0;
-        }
+        /*
+         * TODO: For IBSS we need to get atim_window from mac80211,
+         *       for now just always use 0
+         */
+        ctx->timing.atim_window = 0;
 
         beacon_int = iwl_adjust_beacon_interval(beacon_int,
                                 priv->hw_params.max_beacon_itrvl * TIME_UNIT);
@@ -536,7 +534,7 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
         rem = do_div(tsf, interval_tm);
         ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
 
-        ctx->timing.dtim_period = vif->bss_conf.dtim_period;
+        ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1;
 
         IWL_DEBUG_ASSOC(priv,
                         "beacon interval %d beacon timer %d beacon tim %d\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index ab465c5fd6f6..4d7910001b75 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -728,7 +728,7 @@ extern int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 void iwl_apm_stop(struct iwl_priv *priv);
 int iwl_apm_init(struct iwl_priv *priv);
 
-int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif);
+int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
                                       struct iwl_rxon_context *ctx)
 {
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index e81c438b3348..76a45b239664 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3110,7 +3110,7 @@ void iwl3945_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif)
         ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
         iwlcore_commit_rxon(priv, ctx);
 
-        rc = iwl_send_rxon_timing(priv, vif);
+        rc = iwl_send_rxon_timing(priv, ctx);
         if (rc)
                 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
                             "Attempting to continue.\n");
@@ -3285,7 +3285,7 @@ void iwl3945_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif)
                 iwlcore_commit_rxon(priv, ctx);
 
                 /* RXON Timing */
-                rc = iwl_send_rxon_timing(priv, vif);
+                rc = iwl_send_rxon_timing(priv, ctx);
                 if (rc)
                         IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
                                         "Attempting to continue.\n");