[PATCH 3.14 24/87] iwlwifi: dvm: dont enable CTS to self

From: Greg Kroah-Hartman
Date: Sat Jul 26 2014 - 15:06:23 EST


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

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

From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>

commit 43d826ca5979927131685cc2092c7ce862cb91cd upstream.

We should always prefer to use full RTS protection. Using
CTS to self gives a meaningless improvement, but this flow
is much harder for the firmware which is likely to have
issues with it.

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

---
drivers/net/wireless/iwlwifi/dvm/rxon.c | 12 ------------
1 file changed, 12 deletions(-)

--- a/drivers/net/wireless/iwlwifi/dvm/rxon.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rxon.c
@@ -1068,13 +1068,6 @@ int iwlagn_commit_rxon(struct iwl_priv *
/* 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;
@@ -1480,11 +1473,6 @@ void iwlagn_bss_info_changed(struct ieee
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 ||


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