Messages in this thread Patch in this message |  | | | Date | Tue, 03 Jan 2012 14:33:10 -0800 | | From | Greg KH <> | | Subject | [37/75] iwlwifi: do not set the sequence control bit is not needed |
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3.1-stable review patch. If anyone has any objections, please let me know.
------------------ From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
commit 123877b80ed62c3b897c53357b622574c023b642 upstream.
Check the IEEE80211_TX_CTL_ASSIGN_SEQ flag from mac80211, then decide how to set the TX_CMD_FLG_SEQ_CTL_MSK bit. Setting the wrong bit in BAR frame whill make the firmware to increment the sequence number which is incorrect and cause unknown behavior.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -166,7 +166,10 @@ static void iwlagn_tx_cmd_build_basic(st tx_cmd->tid_tspec = qc[0] & 0xf; tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; } else { - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + else + tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; } iwlagn_tx_cmd_protection(priv, info, fc, &tx_flags);
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