[PATCH 3.14 40/83] iwlwifi: mvm: disable uAPSD due to bugs in the firmware

From: Greg Kroah-Hartman
Date: Sun May 11 2014 - 15:23:50 EST


3.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>

commit a82dda6cd492b8c88952be6f6527f3656f7ac585 upstream.

The current firmware advertises support for uAPSD, but
critical bugs force us to disable the feature.
When a fixed firmware will be available, we will be able to
re-enable uAPSD.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/net/wireless/iwlwifi/mvm/mac80211.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -179,7 +179,7 @@ int iwl_mvm_mac_setup_register(struct iw
!iwlwifi_mod_params.sw_crypto)
hw->flags |= IEEE80211_HW_MFP_CAPABLE;

- if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
+ if (0 && mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
hw->uapsd_queues = IWL_UAPSD_AC_INFO;
hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;


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