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iwlagn: workaround bug crashing some APs

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This patch reverts commit 9b76883284 which
was introduced in 2.6.38-rc1.  It works around a problem where the iwlagn
driver stimulates a bug crashing (requiring power cycle to recover) some
APs under heavy traffic.

CC: stable@kernel.org #2.6.39, #3.0.0 #3.1.0
Signed-off-by: Don Fry <donald.h.fry@intel.com>
SIgned-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Don Fry 2011-09-15 08:36:22 -07:00 committed by John W. Linville
parent 3965ac0020
commit 2249b01143
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/iwlwifi/iwl-agn.c
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@ -2140,7 +2140,12 @@ static int iwl_mac_setup_register(struct iwl_priv *priv,
IEEE80211_HW_SPECTRUM_MGMT |
IEEE80211_HW_REPORTS_TX_ACK_STATUS;
/*
* Including the following line will crash some AP's. This
* workaround removes the stimulus which causes the crash until
* the AP software can be fixed.
hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
*/
hw->flags |= IEEE80211_HW_SUPPORTS_PS |
IEEE80211_HW_SUPPORTS_DYNAMIC_PS;