This is a note to let you know that I've just added the patch titled
iwlwifi: mvm: Prevent setting assoc flag in MAC_CONTEXT_CMD
to the 3.9-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-prevent-setting-assoc-flag-in-mac_context_cmd.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ba283927268d45184c17c37ff78d427e59026229 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@xxxxxxxxx>
Date: Thu, 2 May 2013 16:34:48 +0300
Subject: iwlwifi: mvm: Prevent setting assoc flag in MAC_CONTEXT_CMD
From: Alexander Bondar <alexander.bondar@xxxxxxxxx>
commit ba283927268d45184c17c37ff78d427e59026229 upstream.
In the normal flow first MAC_CONTEXT_CMD for particular interface is
never sent while associated. The exception is fw restart flow when
resuming from suspend when WoWLAN is enabled. In this case successive
"add" and "modify" MAC_CONTEXT_CMD commands may be sent with assoc flag
set what cause FW mal functioning. To prevent this never set assoc flag
in MAC_CONTEXT_CMD with action "add".
Signed-off-by: Alexander Bondar <alexander.bondar@xxxxxxxxx>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -586,10 +586,12 @@ static int iwl_mvm_mac_ctxt_send_cmd(str
*/
static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
- struct iwl_mac_data_sta *ctxt_sta)
+ struct iwl_mac_data_sta *ctxt_sta,
+ bool force_assoc_off)
{
/* We need the dtim_period to set the MAC as associated */
- if (vif->bss_conf.assoc && vif->bss_conf.dtim_period) {
+ if (vif->bss_conf.assoc && vif->bss_conf.dtim_period &&
+ !force_assoc_off) {
u32 dtim_offs;
/*
@@ -652,7 +654,8 @@ static int iwl_mvm_mac_ctxt_cmd_station(
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
/* Fill the data specific for station mode */
- iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta);
+ iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta,
+ action == FW_CTXT_ACTION_ADD);
return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
}
@@ -669,7 +672,8 @@ static int iwl_mvm_mac_ctxt_cmd_p2p_clie
iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
/* Fill the data specific for station mode */
- iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta);
+ iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta,
+ action == FW_CTXT_ACTION_ADD);
cmd.p2p_sta.ctwin = cpu_to_le32(vif->bss_conf.p2p_ctwindow);
Patches currently in stable-queue which might be from alexander.bondar@xxxxxxxxx are
queue-3.9/iwlwifi-mvm-prevent-setting-assoc-flag-in-mac_context_cmd.patch
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