From 6c3fd3f00c67105b49d57525614fcfa6816d604d Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Thu, 18 Oct 2012 12:38:37 +0200 Subject: [PATCH] iwlwifi: don't leak Tx skb when a queue is disabled Since the queue might not be empty, we need to free the pending Tx packets. Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- drivers/net/wireless/iwlwifi/pcie/internal.h | 1 + drivers/net/wireless/iwlwifi/pcie/trans.c | 4 ++-- drivers/net/wireless/iwlwifi/pcie/tx.c | 2 ++ 3 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h index 401178f44a3b..6ce58f03bc53 100644 --- a/drivers/net/wireless/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/iwlwifi/pcie/internal.h @@ -346,6 +346,7 @@ void iwl_txq_free_tfd(struct iwl_trans *trans, struct iwl_tx_queue *txq, enum dma_data_direction dma_dir); int iwl_tx_queue_reclaim(struct iwl_trans *trans, int txq_id, int index, struct sk_buff_head *skbs); +void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id); int iwl_queue_space(const struct iwl_queue *q); /***************************************************** diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index f95d88df7772..a6a518116c7f 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -442,10 +442,10 @@ static int iwl_trans_txq_init(struct iwl_trans *trans, struct iwl_tx_queue *txq, return 0; } -/** +/* * iwl_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's */ -static void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id) +void iwl_tx_queue_unmap(struct iwl_trans *trans, int txq_id) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_tx_queue *txq = &trans_pcie->txq[txq_id]; diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index db3efbb84d92..5db03145186c 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -494,6 +494,8 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id) _iwl_write_targ_mem_dwords(trans, stts_addr, zero_val, ARRAY_SIZE(zero_val)); + iwl_tx_queue_unmap(trans, txq_id); + IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id); } -- GitLab