mac80211: Allow disabling LDPC

This allows user-space (wpa_supplicant) to disable LDPC coding.
Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/ht.c

@@ -86,6 +86,10 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
 	__check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
 			      IEEE80211_HT_CAP_MAX_AMSDU);
 
+	/* Allow user to disable LDPC */
+	__check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+			      IEEE80211_HT_CAP_LDPC_CODING);
+
 	/* Allow user to decrease AMPDU factor */
 	if (ht_capa_mask->ampdu_params_info &
 	    IEEE80211_HT_AMPDU_PARM_FACTOR) {

net/mac80211/main.c

@@ -444,7 +444,8 @@ static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = {
 	.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 				IEEE80211_HT_CAP_MAX_AMSDU |
 				IEEE80211_HT_CAP_SGI_20 |
-				IEEE80211_HT_CAP_SGI_40),
+				IEEE80211_HT_CAP_SGI_40 |
+				IEEE80211_HT_CAP_LDPC_CODING),
 	.mcs = {
 		.rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff,
 			     0xff, 0xff, 0xff, 0xff, 0xff, },