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>

9 files changed, 47 insertions, 10 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index cfdff5487e3c..87943a8da797 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/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 = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 98509c5e708d..7ad4aff5a550 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/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"
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 09db9407aa54..e161f5d7044d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/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 = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c
index 901452ee623a..634177d827d3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c
+++ b/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,
 };
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index f5445d575fec..3fa2c5c3706a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/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)
 {
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h
index 2a1c83bda919..960fe2e5e579 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.h
+++ b/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,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index d6d5bb0f0eb0..09908f604e28 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/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 {
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index eaae49ee0c60..a7e8c7f969f4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/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 @@ out_settings:
          * 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);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 43db5f38e3e6..db148d05af1a 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/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);