iwlagn: show and store firmware build number

We currently display the build number only if debugging
is enabled, but it is really helpful so show it all the
time. Also store it so it can be retrieved later via
ethtool.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

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

@@ -1552,6 +1552,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
 	u32 inst_size, data_size, init_size, init_data_size, boot_size;
 	int err;
 	u16 eeprom_ver;
+	char buildstr[25];
 
 	if (!ucode_raw) {
 		IWL_ERR(priv, "request for firmware file '%s' failed.\n",
@@ -1599,22 +1600,26 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
 			  "from http://www.intellinuxwireless.org.\n",
 			  api_max, api_ver);
 
-	IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
+	if (build)
+		sprintf(buildstr, " build %u", build);
+	else
+		buildstr[0] = '\0';
+
+	IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
 		 IWL_UCODE_MAJOR(priv->ucode_ver),
 		 IWL_UCODE_MINOR(priv->ucode_ver),
 		 IWL_UCODE_API(priv->ucode_ver),
-	       IWL_UCODE_SERIAL(priv->ucode_ver));
+		 IWL_UCODE_SERIAL(priv->ucode_ver),
+		 buildstr);
 
 	snprintf(priv->hw->wiphy->fw_version,
 		 sizeof(priv->hw->wiphy->fw_version),
-		 "%u.%u.%u.%u",
+		 "%u.%u.%u.%u%s",
 		 IWL_UCODE_MAJOR(priv->ucode_ver),
 		 IWL_UCODE_MINOR(priv->ucode_ver),
 		 IWL_UCODE_API(priv->ucode_ver),
-		 IWL_UCODE_SERIAL(priv->ucode_ver));
-
-	if (build)
-		IWL_DEBUG_INFO(priv, "Build %u\n", build);
+		 IWL_UCODE_SERIAL(priv->ucode_ver),
+		 buildstr);
 
 	eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 	IWL_DEBUG_INFO(priv, "NVM Type: %s, version: 0x%x\n",