From: Sara Sharon sara.sharon@intel.com
[ Upstream commit 956343a61226e1af3d146386f70a059feb567d0c ]
command len is set too early in the code, since when building AMSDU, the size changes. This causes the byte count table to have the wrong size.
Fixes: a0ec0169b7a9 ("iwlwifi: support new tx api") Signed-off-by: Sara Sharon sara.sharon@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c | 24 +++++++++---------- 1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c index 61ffa1d1a00d7..316e2ba0c34d7 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c @@ -560,18 +560,6 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
spin_lock(&txq->lock);
- if (trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) { - struct iwl_tx_cmd_gen3 *tx_cmd_gen3 = - (void *)dev_cmd->payload; - - cmd_len = le16_to_cpu(tx_cmd_gen3->len); - } else { - struct iwl_tx_cmd_gen2 *tx_cmd_gen2 = - (void *)dev_cmd->payload; - - cmd_len = le16_to_cpu(tx_cmd_gen2->len); - } - if (iwl_queue_space(trans, txq) < txq->high_mark) { iwl_stop_queue(trans, txq);
@@ -609,6 +597,18 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb, return -1; }
+ if (trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) { + struct iwl_tx_cmd_gen3 *tx_cmd_gen3 = + (void *)dev_cmd->payload; + + cmd_len = le16_to_cpu(tx_cmd_gen3->len); + } else { + struct iwl_tx_cmd_gen2 *tx_cmd_gen2 = + (void *)dev_cmd->payload; + + cmd_len = le16_to_cpu(tx_cmd_gen2->len); + } + /* Set up entry for this TFD in Tx byte-count array */ iwl_pcie_gen2_update_byte_tbl(trans_pcie, txq, cmd_len, iwl_pcie_gen2_get_num_tbs(trans, tfd));