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authorJohannes Berg <johannes.berg@intel.com>2011-12-02 12:22:54 -0800
committerWey-Yi Guy <wey-yi.w.guy@intel.com>2011-12-08 15:55:35 -0800
commit9a215e40d70ae63762963ab3ccc7f31dd966dc6a (patch)
treee19e2a16ceb2c7690a4ef2e79d25d7fa13a33a19 /drivers/net
parent45c30dba1c9358b5446559eff07282c56ada3b4b (diff)
iwlagn: fix TID use bug
The driver everywhere uses max TID count as 9, which is wrong, it should be 8. I think the reason it uses 9 here is off-by-one confusion by whoever wrote this. We do use the value IWL_MAX_TID_COUNT for "not QoS/no TID" but that is completely correct even if it is 8 and not 9 since 0-7 are only valid. As a side effect, this fixes the following bug: Open BA session requested for 00:23:cd:16:8a:7e tid 8 ------------[ cut here ]------------ kernel BUG at drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h:350! ... when you do echo "tx start 8" > /sys/kernel/debug/ieee80211/*/*/*/*/agg_status Cc: stable@vger.kernel.org Reported-by: Nikolay Martynov <mar.kolya@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-commands.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 87bfdf6bdf6..265de39d394 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -814,7 +814,7 @@ struct iwl_qosparam_cmd {
#define IWLAGN_STATION_COUNT 16
#define IWL_INVALID_STATION 255
-#define IWL_MAX_TID_COUNT 9
+#define IWL_MAX_TID_COUNT 8
#define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2)
#define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8)