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From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
To: linux-wireless@vger.kernel.org
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Subject: [PATCH 24/43] iwlwifi: pcie: prevent skbs shadowing in iwl_trans_pcie_reclaim
Date: Wed,  2 Mar 2016 09:56:25 +0200	[thread overview]
Message-ID: <1456905404-14435-24-git-send-email-emmanuel.grumbach@intel.com> (raw)
In-Reply-To: <0BA3FCBA62E2DC44AF3030971E174FB32EA50146@hasmsx107.ger.corp.intel.com>

The patch below introduced a variable shadowing. Fix that.

Fixes: 3955525d5d17 ("iwlwifi: pcie: buffer packets to avoid overflowing Tx queues")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 837a7d5..16ad820 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -1062,10 +1062,10 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 
 	if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
 	    test_bit(txq_id, trans_pcie->queue_stopped)) {
-		struct sk_buff_head skbs;
+		struct sk_buff_head overflow_skbs;
 
-		__skb_queue_head_init(&skbs);
-		skb_queue_splice_init(&txq->overflow_q, &skbs);
+		__skb_queue_head_init(&overflow_skbs);
+		skb_queue_splice_init(&txq->overflow_q, &overflow_skbs);
 
 		/*
 		 * This is tricky: we are in reclaim path which is non
@@ -1076,8 +1076,8 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 		 */
 		spin_unlock_bh(&txq->lock);
 
-		while (!skb_queue_empty(&skbs)) {
-			struct sk_buff *skb = __skb_dequeue(&skbs);
+		while (!skb_queue_empty(&overflow_skbs)) {
+			struct sk_buff *skb = __skb_dequeue(&overflow_skbs);
 			struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 			u8 dev_cmd_idx = IWL_TRANS_FIRST_DRIVER_DATA + 1;
 			struct iwl_device_cmd *dev_cmd =
-- 
2.5.0


  parent reply	other threads:[~2016-03-02  7:57 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-02  7:51 pull request: iwlwifi-next 2016-03-02 Grumbach, Emmanuel
2016-03-02  7:56 ` [PATCH 01/43] iwlwifi: mvm: add CT-KILL notification Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 02/43] iwlwifi: mvm: add registration to thermal zone Emmanuel Grumbach
2016-03-04 18:39   ` Bjørn Mork
2016-03-04 18:53     ` Bjørn Mork
2016-03-04 19:57       ` Coelho, Luciano
2016-03-04 20:22         ` Bjørn Mork
2016-03-04 20:30           ` Coelho, Luciano
2016-03-04 19:52     ` Coelho, Luciano
2016-03-02  7:56 ` [PATCH 03/43] iwlwifi: mvm: add registration to cooling device Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 04/43] iwlwifi: mvm: set the correct descriptor size for tracing Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 05/43] iwlwifi: mvm: fix RSS key sizing Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 06/43] iwlwifi: mvm: handle pass all scan reporting Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 07/43] iwlwifi: mvm: rs: fix a theoretical access to uninitialized array elements Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 08/43] iwlwifi: mvm: bump firmware API to 21 Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 09/43] iwlwifi: pcie: aggregate Flow Handler configuration writes Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 10/43] iwlwifi: pcie: Add new configuration to enable MSIX Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 11/43] iwlwifi: pcie: fix identation in trans.c Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 12/43] iwlwifi: mvm: enable VHT MU-MIMO for supported hardware Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 13/43] iwlwifi: mvm: update firmware of VHT MU-MIMO groups status on restart Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 14/43] iwlwifi: mvm: send large SKBs to the transport Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 15/43] iwlwifi: mvm: add Tx A-MSDU inside A-MPDU Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 16/43] iwlwifi: mvm: allow to limit the A-MSDU from debugfs Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 17/43] iwlwifi: mvm: don't enable A-MSDU when the rates are too low Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 18/43] iwlwifi: mvm: don't send an A-MSDU that is larger than the TXF Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 19/43] iwlwifi: support tracing wide commands Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 20/43] iwlwifi: mvm: update rx_status with mactime flag Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 21/43] iwlwifi: mvm: support filtered frames notification Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 22/43] iwlwifi: pcie: configure more RFH settings Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 23/43] iwlwifi: pcie: add pm_prepare and pm_complete ops Emmanuel Grumbach
2016-03-02  7:56 ` Emmanuel Grumbach [this message]
2016-03-02  7:56 ` [PATCH 25/43] iwlwifi: mvm: add duplicate packet detection per rx queue Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 26/43] iwlwifi: mvm: add RSS queues notification infrastructure Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 27/43] iwlwifi: mvm: remove unused field in iwl_mvm_tid_data Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 28/43] iwlwifi: mvm: support VHT MU-MIMO notification Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 29/43] iwlwifi: mvm: various trivial cleanups Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 30/43] iwlwifi: mvm: Set global RRM capability Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 31/43] iwlwifi: mvm: forbid U-APSD for P2P Client if the firmware doesn't support it Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 32/43] iwlwifi: mvm: Send power command on BSS_CHANGED_BEACON_INFO if needed Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 33/43] iwlwifi: mvm: take care of padded packets Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 34/43] iwlwifi: mvm: kill iwl_mvm_enable_agg_txq Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 35/43] iwlwifi: mvm: Disable beacon storing in D3 when WOWLAN configured Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 36/43] iwlwifi: support ucode with d0 unified image - regular and usniffer Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 37/43] iwlwifi: mvm: update ucode status before stopping device Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 38/43] iwlwifi: pcie: detect and workaround invalid write ptr behavior Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 39/43] iwlwifi: mvm: disable DQA support Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 40/43] iwlwifi: mvm: only release the trans ref if d0i3 is supported in fw Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 41/43] iwlwifi: add disable_11ac module param Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 42/43] iwlwifi: mvm: take the transport ref back when leaving Emmanuel Grumbach
2016-03-02  7:56 ` [PATCH 43/43] iwlwifi: mvm: support sw queue start/stop from mvm Emmanuel Grumbach
2016-03-07 13:50 ` pull request: iwlwifi-next 2016-03-02 Kalle Valo

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