From: Emmanuel Grumbach <[email protected]>

This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.

===============

commit f47f46d7b09cf1d09e4b44b6cc4dd7d68a08028c upstream.

This reverts commit 43d826ca5979927131685cc2092c7ce862cb91cd.

This commit caused packet loss.

Signed-off-by: Emmanuel Grumbach <[email protected]>
Signed-off-by: Jiri Slaby <[email protected]>
---
 drivers/net/wireless/iwlwifi/dvm/rxon.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/dvm/rxon.c 
b/drivers/net/wireless/iwlwifi/dvm/rxon.c
index 6a5b7593ea42..d7ce2f12a907 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rxon.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rxon.c
@@ -1068,6 +1068,13 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct 
iwl_rxon_context *ctx)
        /* recalculate basic rates */
        iwl_calc_basic_rates(priv, ctx);
 
+       /*
+        * force CTS-to-self frames protection if RTS-CTS is not preferred
+        * one aggregation protection method
+        */
+       if (!priv->hw_params.use_rts_for_aggregation)
+               ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
+
        if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) ||
            !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK))
                ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
@@ -1473,6 +1480,11 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
        else
                ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
 
+       if (bss_conf->use_cts_prot)
+               ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
+       else
+               ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
+
        memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
 
        if (vif->type == NL80211_IFTYPE_AP ||
-- 
2.1.1

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