53 lines
2.2 KiB
Diff
53 lines
2.2 KiB
Diff
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From 784c4f0b18f89922ddc0fe21e5ec64cc370bb3f2 Mon Sep 17 00:00:00 2001
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From: Johannes Berg <johannes.berg@intel.com>
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Date: Wed, 19 Mar 2014 18:36:39 +0100
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Subject: [PATCH 10/10] iwlwifi: mvm: delay enabling smart FIFO until after
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beacon RX
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If we have no beacon data before association, delay smart FIFO
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enablement until after we have this data.
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Not doing so can cause association failures in extremely silent
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environments (usually only a shielded box/room) as beacon RX is
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not sent to the host immediately, and then the association time
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event ends without the host receiving any beacon even though it
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was on the air - it's just stuck on the FIFO.
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Cc: <stable@vger.kernel.org> [3.14]
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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---
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drivers/net/wireless/iwlwifi/mvm/mac80211.c | 1 +
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drivers/net/wireless/iwlwifi/mvm/sf.c | 3 ++-
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2 files changed, 3 insertions(+), 1 deletion(-)
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diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
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index c35b866..45e861e 100644
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--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
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+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
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@@ -971,6 +971,7 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
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*/
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iwl_mvm_remove_time_event(mvm, mvmvif,
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&mvmvif->time_event_data);
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+ iwl_mvm_sf_update(mvm, vif, false);
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} else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
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BSS_CHANGED_QOS)) {
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ret = iwl_mvm_power_update_mode(mvm, vif);
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diff --git a/drivers/net/wireless/iwlwifi/mvm/sf.c b/drivers/net/wireless/iwlwifi/mvm/sf.c
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index 8401627..88809b2 100644
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--- a/drivers/net/wireless/iwlwifi/mvm/sf.c
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+++ b/drivers/net/wireless/iwlwifi/mvm/sf.c
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@@ -274,7 +274,8 @@ int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *changed_vif,
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return -EINVAL;
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if (changed_vif->type != NL80211_IFTYPE_STATION) {
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new_state = SF_UNINIT;
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- } else if (changed_vif->bss_conf.assoc) {
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+ } else if (changed_vif->bss_conf.assoc &&
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+ changed_vif->bss_conf.dtim_period) {
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mvmvif = iwl_mvm_vif_from_mac80211(changed_vif);
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sta_id = mvmvif->ap_sta_id;
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new_state = SF_FULL_ON;
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--
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1.9.2
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