iwlwifi: remove support for Narrow Channel (10Mhz)

Setting Narrow Channel bit in the scan command caused the device
not to send probe request on all the channels

Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-3945-hw.h

@@ -126,7 +126,7 @@ enum {
 	EEPROM_CHANNEL_ACTIVE = (1 << 3),	/* active scanning allowed */
 	EEPROM_CHANNEL_RADAR = (1 << 4),	/* radar detection required */
 	EEPROM_CHANNEL_WIDE = (1 << 5),		/* 20 MHz channel okay */
-	EEPROM_CHANNEL_NARROW = (1 << 6),	/* 10 MHz channel (not used) */
+	/* Bit 6 Reserved (was Narrow Channel) */
 	EEPROM_CHANNEL_DFS = (1 << 7),	/* dynamic freq selection candidate */
 };
 

drivers/net/wireless/iwlwifi/iwl-3945.h

@@ -924,11 +924,6 @@ static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
 	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 }
 
-static inline int is_channel_narrow(const struct iwl3945_channel_info *ch_info)
-{
-	return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
-}
-
 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
 {
 	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;

drivers/net/wireless/iwlwifi/iwl-4965.h

@@ -1227,11 +1227,6 @@ static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
 	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
 }
 
-static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
-{
-	return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
-}
-
 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
 {
 	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;

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

@@ -377,7 +377,7 @@ static int iwl4965_set_fat_chan_info(struct iwl_priv *priv,
 	if (!is_channel_valid(ch_info))
 		return -1;
 
-	IWL_DEBUG_INFO("FAT Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
+	IWL_DEBUG_INFO("FAT Ch. %d [%sGHz] %s%s%s%s%s(0x%02x"
 			" %ddBm): Ad-Hoc %ssupported\n",
 			ch_info->channel,
 			is_channel_a_band(ch_info) ?
@@ -386,7 +386,6 @@ static int iwl4965_set_fat_chan_info(struct iwl_priv *priv,
 			CHECK_AND_PRINT(ACTIVE),
 			CHECK_AND_PRINT(RADAR),
 			CHECK_AND_PRINT(WIDE),
-			CHECK_AND_PRINT(NARROW),
 			CHECK_AND_PRINT(DFS),
 			eeprom_ch->flags,
 			eeprom_ch->max_power_avg,
@@ -490,7 +489,7 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 			ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
 			ch_info->min_power = 0;
 
-			IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x"
+			IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
 				       " %ddBm): Ad-Hoc %ssupported\n",
 				       ch_info->channel,
 				       is_channel_a_band(ch_info) ?
@@ -500,7 +499,6 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 				       CHECK_AND_PRINT_I(ACTIVE),
 				       CHECK_AND_PRINT_I(RADAR),
 				       CHECK_AND_PRINT_I(WIDE),
-				       CHECK_AND_PRINT_I(NARROW),
 				       CHECK_AND_PRINT_I(DFS),
 				       eeprom_ch_info[ch].flags,
 				       eeprom_ch_info[ch].max_power_avg,

drivers/net/wireless/iwlwifi/iwl-eeprom.h

@@ -106,7 +106,7 @@ enum {
 	EEPROM_CHANNEL_ACTIVE = (1 << 3),	/* active scanning allowed */
 	EEPROM_CHANNEL_RADAR = (1 << 4),	/* radar detection required */
 	EEPROM_CHANNEL_WIDE = (1 << 5),		/* 20 MHz channel okay */
-	EEPROM_CHANNEL_NARROW = (1 << 6),	/* 10 MHz channel (not used) */
+	/* Bit 6 Reserved (was Narrow Channel) */
 	EEPROM_CHANNEL_DFS = (1 << 7),	/* dynamic freq selection candidate */
 };
 

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -4841,7 +4841,7 @@ static int iwl3945_init_channel_map(struct iwl3945_priv *priv)
 			ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
 			ch_info->min_power = 0;
 
-			IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x"
+			IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
 				       " %ddBm): Ad-Hoc %ssupported\n",
 				       ch_info->channel,
 				       is_channel_a_band(ch_info) ?
@@ -4851,7 +4851,6 @@ static int iwl3945_init_channel_map(struct iwl3945_priv *priv)
 				       CHECK_AND_PRINT(ACTIVE),
 				       CHECK_AND_PRINT(RADAR),
 				       CHECK_AND_PRINT(WIDE),
-				       CHECK_AND_PRINT(NARROW),
 				       CHECK_AND_PRINT(DFS),
 				       eeprom_ch_info[ch].flags,
 				       eeprom_ch_info[ch].max_power_avg,
@@ -4987,9 +4986,6 @@ static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv,
 		if (scan_ch->type & 1)
 			scan_ch->type |= (direct_mask << 1);
 
-		if (is_channel_narrow(ch_info))
-			scan_ch->type |= (1 << 7);
-
 		scan_ch->active_dwell = cpu_to_le16(active_dwell);
 		scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
 

drivers/net/wireless/iwlwifi/iwl4965-base.c

@@ -4392,9 +4392,6 @@ static int iwl4965_get_channels_for_scan(struct iwl_priv *priv,
 		if (scan_ch->type & 1)
 			scan_ch->type |= (direct_mask << 1);
 
-		if (is_channel_narrow(ch_info))
-			scan_ch->type |= (1 << 7);
-
 		scan_ch->active_dwell = cpu_to_le16(active_dwell);
 		scan_ch->passive_dwell = cpu_to_le16(passive_dwell);