This is a note to let you know that I've just added the patch titled
iwlwifi: mvm: delay enabling smart FIFO until after beacon RX
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iwlwifi-mvm-delay-enabling-smart-fifo-until-after-beacon-rx.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0229cdafb6f67064a217591d48b0f6abf14e8385 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@xxxxxxxxx>
Date: Wed, 19 Mar 2014 18:36:39 +0100
Subject: iwlwifi: mvm: delay enabling smart FIFO until after beacon RX
From: Johannes Berg <johannes.berg@xxxxxxxxx>
commit 0229cdafb6f67064a217591d48b0f6abf14e8385 upstream.
If we have no beacon data before association, delay smart FIFO
enablement until after we have this data.
Not doing so can cause association failures in extremely silent
environments (usually only a shielded box/room) as beacon RX is
not sent to the host immediately, and then the association time
event ends without the host receiving any beacon even though it
was on the air - it's just stuck on the FIFO.
Fixes: 1f3b0ff8ecce ("iwlwifi: mvm: Add Smart FIFO support")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/iwlwifi/mvm/mac80211.c | 1 +
drivers/net/wireless/iwlwifi/mvm/sf.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -971,6 +971,7 @@ static void iwl_mvm_bss_info_changed_sta
*/
iwl_mvm_remove_time_event(mvm, mvmvif,
&mvmvif->time_event_data);
+ iwl_mvm_sf_update(mvm, vif, false);
} else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
BSS_CHANGED_QOS)) {
ret = iwl_mvm_power_update_mode(mvm, vif);
--- a/drivers/net/wireless/iwlwifi/mvm/sf.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sf.c
@@ -274,7 +274,8 @@ int iwl_mvm_sf_update(struct iwl_mvm *mv
return -EINVAL;
if (changed_vif->type != NL80211_IFTYPE_STATION) {
new_state = SF_UNINIT;
- } else if (changed_vif->bss_conf.assoc) {
+ } else if (changed_vif->bss_conf.assoc &&
+ changed_vif->bss_conf.dtim_period) {
mvmvif = iwl_mvm_vif_from_mac80211(changed_vif);
sta_id = mvmvif->ap_sta_id;
new_state = SF_FULL_ON;
Patches currently in stable-queue which might be from johannes.berg@xxxxxxxxx are
queue-3.14/cfg80211-free-sme-on-connection-failures.patch
queue-3.14/mac80211-fix-suspend-vs.-association-race.patch
queue-3.14/iwlwifi-mvm-delay-enabling-smart-fifo-until-after-beacon-rx.patch
queue-3.14/mac80211-fix-nested-rtnl-locking-on-ieee80211_reconfig.patch
queue-3.14/cfg80211-add-cfg80211_sched_scan_stopped_rtnl.patch
queue-3.14/cfg80211-fix-few-minor-issues-in-reg_process_hint.patch
queue-3.14/mac80211-fix-on-channel-remain-on-channel.patch
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