iwlwifi: introduce post_scan hook

The different drivers need to do different things
after a scan, so create a post_scan hook to allow
them to do this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

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

@@ -2713,6 +2713,7 @@ static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
 	.build_addsta_hcmd = iwl3945_build_addsta_hcmd,
 	.tx_cmd_protection = iwlcore_tx_cmd_protection,
 	.request_scan = iwl3945_request_scan,
+	.post_scan = iwl3945_post_scan,
 };
 
 static const struct iwl_ops iwl3945_ops = {

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

@@ -296,6 +296,7 @@ extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
 
 /* scanning */
 int iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif);
+void iwl3945_post_scan(struct iwl_priv *priv);
 
 /* Requires full declaration of iwl_priv before including */
 #include "iwl-io.h"

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

@@ -2221,6 +2221,18 @@ static struct iwl_hcmd_ops iwl4965_hcmd = {
 	.send_bt_config = iwl_send_bt_config,
 };
 
+static void iwl4965_post_scan(struct iwl_priv *priv)
+{
+	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+
+	/*
+	 * Since setting the RXON may have been deferred while
+	 * performing the scan, fire one off if needed
+	 */
+	if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
+		iwlcore_commit_rxon(priv, ctx);
+}
+
 static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
 	.get_hcmd_size = iwl4965_get_hcmd_size,
 	.build_addsta_hcmd = iwl4965_build_addsta_hcmd,
@@ -2229,6 +2241,7 @@ static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
 	.tx_cmd_protection = iwlcore_tx_cmd_protection,
 	.calc_rssi = iwl4965_calc_rssi,
 	.request_scan = iwlagn_request_scan,
+	.post_scan = iwl4965_post_scan,
 };
 
 static struct iwl_lib_ops iwl4965_lib = {

drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c

@@ -384,4 +384,5 @@ struct iwl_hcmd_utils_ops iwlagn_hcmd_utils = {
 	.tx_cmd_protection = iwlagn_tx_cmd_protection,
 	.calc_rssi = iwlagn_calc_rssi,
 	.request_scan = iwlagn_request_scan,
+	.post_scan = iwlagn_post_scan,
 };

drivers/net/wireless/iwlwifi/iwl-agn-lib.c

@@ -1565,6 +1565,22 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 	return ret;
 }
 
+void iwlagn_post_scan(struct iwl_priv *priv)
+{
+	struct iwl_rxon_context *ctx;
+
+	/*
+	 * Since setting the RXON may have been deferred while
+	 * performing the scan, fire one off if needed
+	 */
+	for_each_context(priv, ctx)
+		if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
+			iwlagn_commit_rxon(priv, ctx);
+
+	if (priv->cfg->ops->hcmd->set_pan_params)
+		priv->cfg->ops->hcmd->set_pan_params(priv);
+}
+
 int iwlagn_manage_ibss_station(struct iwl_priv *priv,
 			       struct ieee80211_vif *vif, bool add)
 {

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

@@ -227,6 +227,7 @@ void iwl_reply_statistics(struct iwl_priv *priv,
 
 /* scan */
 int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif);
+void iwlagn_post_scan(struct iwl_priv *priv);
 
 /* station mgmt */
 int iwlagn_manage_ibss_station(struct iwl_priv *priv,

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

@@ -112,6 +112,7 @@ struct iwl_hcmd_utils_ops {
 	int  (*calc_rssi)(struct iwl_priv *priv,
 			  struct iwl_rx_phy_res *rx_resp);
 	int (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
+	void (*post_scan)(struct iwl_priv *priv);
 };
 
 struct iwl_apm_ops {

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

@@ -559,7 +559,6 @@ static void iwl_bg_scan_completed(struct work_struct *work)
 	struct iwl_priv *priv =
 	    container_of(work, struct iwl_priv, scan_completed);
 	bool aborted;
-	struct iwl_rxon_context *ctx;
 
 	IWL_DEBUG_SCAN(priv, "Completed %sscan.\n",
 		       priv->is_internal_short_scan ? "internal short " : "");
@@ -609,15 +608,7 @@ static void iwl_bg_scan_completed(struct work_struct *work)
 	 * performing the scan, fire one off */
 	iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
 
-	/*
-	 * Since setting the RXON may have been deferred while
-	 * performing the scan, fire one off if needed
-	 */
-	for_each_context(priv, ctx)
-		iwlcore_commit_rxon(priv, ctx);
-
-	if (priv->cfg->ops->hcmd->set_pan_params)
-		priv->cfg->ops->hcmd->set_pan_params(priv);
+	priv->cfg->ops->utils->post_scan(priv);
 
  out:
 	mutex_unlock(&priv->mutex);

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

@@ -2983,6 +2983,18 @@ int iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 	return ret;
 }
 
+void iwl3945_post_scan(struct iwl_priv *priv)
+{
+	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+
+	/*
+	 * Since setting the RXON may have been deferred while
+	 * performing the scan, fire one off if needed
+	 */
+	if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
+		iwlcore_commit_rxon(priv, ctx);
+}
+
 static void iwl3945_bg_restart(struct work_struct *data)
 {
 	struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);