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Commit 4d38c2e8 authored by Emmanuel Grumbach's avatar Emmanuel Grumbach Committed by John W. Linville
Browse files

iwlwifi: disable FAT channel when not permitted 



This patch disables FAT channel when it is not permitted according to
the EEPROM.

Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 9306102e

drivers/net/wireless/iwlwifi/iwl-core.c

+19 −0
Original line number Diff line number Diff line
@@ -486,6 +486,25 @@ static int iwlcore_init_geos(struct iwl_priv *priv) 
			if (ch->flags & EEPROM_CHANNEL_RADAR)

				geo_ch->flags |= IEEE80211_CHAN_RADAR;



			switch (ch->fat_extension_channel) {

			case HT_IE_EXT_CHANNEL_ABOVE:

				/* only above is allowed, disable below */

				geo_ch->flags |= IEEE80211_CHAN_NO_FAT_BELOW;

				break;

			case HT_IE_EXT_CHANNEL_BELOW:

				/* only below is allowed, disable above */

				geo_ch->flags |= IEEE80211_CHAN_NO_FAT_ABOVE;

				break;

			case HT_IE_EXT_CHANNEL_NONE:

				/* fat not allowed: disable both*/

				geo_ch->flags |= (IEEE80211_CHAN_NO_FAT_ABOVE |

						  IEEE80211_CHAN_NO_FAT_BELOW);

				break;

			case HT_IE_EXT_CHANNEL_MAX:

				/* both above and below are permitted */

				break;

			}



			if (ch->max_power_avg > priv->max_channel_txpower_limit)

				priv->max_channel_txpower_limit =

				    ch->max_power_avg;