iwlwifi: mvm: disable CTS to Self

commit dc271ee0d04d12d6bfabacbec803289a7072fbd9 upstream.

Firmware folks seem say that this flag can make trouble.
Drop it. The advantage of CTS to self is that it slightly
reduces the cost of the protection, but make the protection
less reliable.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 9ccec10bba166299cc91cf1706992937127d277a..c3c8194d85b509b047542a1815f1ba138d48e898 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -667,13 +667,9 @@ static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
        if (vif->bss_conf.qos)
                cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA);
 
-       /* Don't use cts to self as the fw doesn't support it currently. */
-       if (vif->bss_conf.use_cts_prot) {
+       if (vif->bss_conf.use_cts_prot)
                cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT);
-               if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
-                       cmd->protection_flags |=
-                               cpu_to_le32(MAC_PROT_FLG_SELF_CTS_EN);
-       }
+
        IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n",
                       vif->bss_conf.use_cts_prot,
                       vif->bss_conf.ht_operation_mode);