This is a note to let you know that I've just added the patch titled
iwlwifi: mvm: free RX reorder buffer on restart
to the 4.7-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-free-rx-reorder-buffer-on-restart.patch
and it can be found in the queue-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 60dec5233cd8651860e8010c953d116fb0f1ba86 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@xxxxxxxxx>
Date: Tue, 21 Jun 2016 14:14:08 +0300
Subject: iwlwifi: mvm: free RX reorder buffer on restart
From: Sara Sharon <sara.sharon@xxxxxxxxx>
commit 60dec5233cd8651860e8010c953d116fb0f1ba86 upstream.
Restart flow zeroes the rx_ba_sessions counter. Mac80211 asks
driver to tear down of the session only afterwards, and as a
result driver didn't free the data. Fix it.
Signed-off-by: Sara Sharon <sara.sharon@xxxxxxxxx>
Fixes: 10b2b2019d81 ("iwlwifi: mvm: add infrastructure for tracking BA session in driver")
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -1374,11 +1374,12 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *m
*/
WARN_ON(rcu_access_pointer(mvm->baid_map[baid]));
rcu_assign_pointer(mvm->baid_map[baid], baid_data);
- } else if (mvm->rx_ba_sessions > 0) {
+ } else {
u8 baid = mvm_sta->tid_to_baid[tid];
- /* check that restart flow didn't zero the counter */
- mvm->rx_ba_sessions--;
+ if (mvm->rx_ba_sessions > 0)
+ /* check that restart flow didn't zero the counter */
+ mvm->rx_ba_sessions--;
if (!iwl_mvm_has_new_rx_api(mvm))
return 0;
Patches currently in stable-queue which might be from sara.sharon@xxxxxxxxx are
queue-4.7/iwlwifi-pcie-fix-access-to-scratch-buffer.patch
queue-4.7/iwlwifi-mvm-checksum-ipv6-fragmented-packet.patch
queue-4.7/iwlwifi-mvm-free-rx-reorder-buffer-on-restart.patch
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