iwlwifi: improve timing handling with dual-mode

In dual-mode, a number of scenarios need to be
considered, and the firmware can be very picky
about them. Adjust the timing (most importantly
the beacon interval) according to the different
modes.

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

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index f67cab5bc6f2..c393b20ae1c1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -529,10 +529,22 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
         ctx->timing.atim_window = 0;
 
         if (ctx->ctxid == IWL_RXON_CTX_PAN &&
-            (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION)) {
+            (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION) &&
+            iwl_is_associated(priv, IWL_RXON_CTX_BSS) &&
+            priv->contexts[IWL_RXON_CTX_BSS].vif &&
+            priv->contexts[IWL_RXON_CTX_BSS].vif->bss_conf.beacon_int) {
                 ctx->timing.beacon_interval =
                         priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval;
                 beacon_int = le16_to_cpu(ctx->timing.beacon_interval);
+        } else if (ctx->ctxid == IWL_RXON_CTX_BSS &&
+                   iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&
+                   priv->contexts[IWL_RXON_CTX_PAN].vif &&
+                   priv->contexts[IWL_RXON_CTX_PAN].vif->bss_conf.beacon_int &&
+                   (!iwl_is_associated_ctx(ctx) || !ctx->vif ||
+                    !ctx->vif->bss_conf.beacon_int)) {
+                ctx->timing.beacon_interval =
+                        priv->contexts[IWL_RXON_CTX_PAN].timing.beacon_interval;
+                beacon_int = le16_to_cpu(ctx->timing.beacon_interval);
         } else {
                 beacon_int = iwl_adjust_beacon_interval(beacon_int,
                                 priv->hw_params.max_beacon_itrvl * TIME_UNIT);