diff options
| author |   Johannes Berg <johannes.berg@intel.com> | 2023-03-17 10:53:25 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-03-22 13:14:24 +0100 |
| commit | 923bf981eb6ecc027227716e30701bdcc1845fbf (patch) | |
| tree | 9f2749f65acb9af288cd889fce60784da25697c2 /drivers/net/wireless/intel/iwlwifi/mvm/ops.c | |
| parent | wifi: iwlwifi: mvm: fix mvmtxq->stopped handling (diff) | |
| download | wireguard-linux-923bf981eb6ecc027227716e30701bdcc1845fbf.tar.xz wireguard-linux-923bf981eb6ecc027227716e30701bdcc1845fbf.zip | |
wifi: iwlwifi: mvm: protect TXQ list manipulation
Some recent upstream debugging uncovered the fact that in
iwlwifi, the TXQ list manipulation is racy.
Introduce a new state bit for when the TXQ is completely
ready and can be used without locking, and if that's not
set yet acquire the lock to check everything correctly.
Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Tested-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/ops.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index efad8f92d132..9711841bb456 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -1195,6 +1195,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); INIT_LIST_HEAD(&mvm->add_stream_txqs); + spin_lock_init(&mvm->add_stream_lock); init_waitqueue_head(&mvm->rx_sync_waitq); |