iwlwifi: legacy tx_cmd_protection function

Legacy (4965 and 3945) devices has different tx_cmd_protection routine.
Move to iwl-legacy.c
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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

@@ -2749,7 +2749,7 @@ static const struct iwl_legacy_ops iwl3945_legacy_ops = {
 static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
 	.get_hcmd_size = iwl3945_get_hcmd_size,
 	.build_addsta_hcmd = iwl3945_build_addsta_hcmd,
-	.tx_cmd_protection = iwlcore_tx_cmd_protection,
+	.tx_cmd_protection = iwl_legacy_tx_cmd_protection,
 	.request_scan = iwl3945_request_scan,
 	.post_scan = iwl3945_post_scan,
 };

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

@@ -2514,7 +2514,7 @@ static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
 	.build_addsta_hcmd = iwl4965_build_addsta_hcmd,
 	.chain_noise_reset = iwl4965_chain_noise_reset,
 	.gain_computation = iwl4965_gain_computation,
-	.tx_cmd_protection = iwlcore_tx_cmd_protection,
+	.tx_cmd_protection = iwl_legacy_tx_cmd_protection,
 	.calc_rssi = iwl4965_calc_rssi,
 	.request_scan = iwlagn_request_scan,
 	.post_scan = iwl4965_post_scan,

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

@@ -288,40 +288,6 @@ void iwlcore_free_geos(struct iwl_priv *priv)
 }
 EXPORT_SYMBOL(iwlcore_free_geos);
 
-/*
- *  iwlcore_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this
- *  function.
- */
-void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
-			       struct ieee80211_tx_info *info,
-			       __le16 fc, __le32 *tx_flags)
-{
-	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
-		*tx_flags |= TX_CMD_FLG_RTS_MSK;
-		*tx_flags &= ~TX_CMD_FLG_CTS_MSK;
-		*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
-
-		if (!ieee80211_is_mgmt(fc))
-			return;
-
-		switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
-		case cpu_to_le16(IEEE80211_STYPE_AUTH):
-		case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
-		case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
-		case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
-			*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
-			*tx_flags |= TX_CMD_FLG_CTS_MSK;
-			break;
-		}
-	} else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
-		*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
-		*tx_flags |= TX_CMD_FLG_CTS_MSK;
-		*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
-	}
-}
-EXPORT_SYMBOL(iwlcore_tx_cmd_protection);
-
-
 static bool iwl_is_channel_extension(struct iwl_priv *priv,
 				     enum ieee80211_band band,
 				     u16 channel, u8 extension_chan_offset)

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

@@ -447,9 +447,7 @@ int iwl_mac_change_interface(struct ieee80211_hw *hw,
 			     enum nl80211_iftype newtype, bool newp2p);
 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 void iwl_free_txq_mem(struct iwl_priv *priv);
-void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
-			       struct ieee80211_tx_info *info,
-			       __le16 fc, __le32 *tx_flags);
+
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 void iwl_free_traffic_mem(struct iwl_priv *priv);

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

@@ -620,3 +620,37 @@ irqreturn_t iwl_isr_legacy(int irq, void *data)
 	return IRQ_NONE;
 }
 EXPORT_SYMBOL(iwl_isr_legacy);
+
+/*
+ *  iwl_legacy_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this
+ *  function.
+ */
+void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
+			       struct ieee80211_tx_info *info,
+			       __le16 fc, __le32 *tx_flags)
+{
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
+		*tx_flags |= TX_CMD_FLG_RTS_MSK;
+		*tx_flags &= ~TX_CMD_FLG_CTS_MSK;
+		*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
+
+		if (!ieee80211_is_mgmt(fc))
+			return;
+
+		switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
+		case cpu_to_le16(IEEE80211_STYPE_AUTH):
+		case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+		case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
+		case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
+			*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+			*tx_flags |= TX_CMD_FLG_CTS_MSK;
+			break;
+		}
+	} else if (info->control.rates[0].flags &
+		   IEEE80211_TX_RC_USE_CTS_PROTECT) {
+		*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+		*tx_flags |= TX_CMD_FLG_CTS_MSK;
+		*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
+	}
+}
+EXPORT_SYMBOL(iwl_legacy_tx_cmd_protection);

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

@@ -70,6 +70,9 @@ void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *bss_conf,
 				     u32 changes);
+void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
+				struct ieee80211_tx_info *info,
+				__le16 fc, __le32 *tx_flags);
 
 irqreturn_t iwl_isr_legacy(int irq, void *data);