orinoco: firmware: consistently compile out fw cache support if not requested

Currently part of support for FW caching is unconditionally compiled
in even if it is never used. Consistently remove caching support if
not requested by user.
Signed-off-by: NAndrey Borzenkov <arvidjaar@mail.ru>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/orinoco/fw.c

@@ -70,6 +70,19 @@ static const char *validate_fw(const struct orinoco_fw_header *hdr, size_t len)
 	return NULL;
 }
 
+#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
+static inline const struct firmware *
+orinoco_cached_fw_get(struct orinoco_private *priv, bool primary)
+{
+	if (primary)
+		return priv->cached_pri_fw;
+	else
+		return priv->cached_fw;
+}
+#else
+#define orinoco_cached_fw_get(priv, primary) (NULL)
+#endif
+
 /* Download either STA or AP firmware into the card. */
 static int
 orinoco_dl_firmware(struct orinoco_private *priv,
@@ -107,7 +120,7 @@ orinoco_dl_firmware(struct orinoco_private *priv,
 	if (err)
 		goto free;
 
-	if (!priv->cached_fw) {
+	if (!orinoco_cached_fw_get(priv, false)) {
 		err = request_firmware(&fw_entry, firmware, priv->dev);
 
 		if (err) {
@@ -117,7 +130,7 @@ orinoco_dl_firmware(struct orinoco_private *priv,
 			goto free;
 		}
 	} else
-		fw_entry = priv->cached_fw;
+		fw_entry = orinoco_cached_fw_get(priv, false);
 
 	hdr = (const struct orinoco_fw_header *) fw_entry->data;
 
@@ -170,7 +183,7 @@ orinoco_dl_firmware(struct orinoco_private *priv,
 
 abort:
 	/* If we requested the firmware, release it. */
-	if (!priv->cached_fw)
+	if (!orinoco_cached_fw_get(priv, false))
 		release_firmware(fw_entry);
 
 free:
@@ -273,20 +286,20 @@ symbol_dl_firmware(struct orinoco_private *priv,
 	int ret;
 	const struct firmware *fw_entry;
 
-	if (!priv->cached_pri_fw) {
+	if (!orinoco_cached_fw_get(priv, true)) {
 		if (request_firmware(&fw_entry, fw->pri_fw, priv->dev) != 0) {
 			printk(KERN_ERR "%s: Cannot find firmware: %s\n",
 			       dev->name, fw->pri_fw);
 			return -ENOENT;
 		}
 	} else
-		fw_entry = priv->cached_pri_fw;
+		fw_entry = orinoco_cached_fw_get(priv, true);
 
 	/* Load primary firmware */
 	ret = symbol_dl_image(priv, fw, fw_entry->data,
 			      fw_entry->data + fw_entry->size, 0);
 
-	if (!priv->cached_pri_fw)
+	if (!orinoco_cached_fw_get(priv, true))
 		release_firmware(fw_entry);
 	if (ret) {
 		printk(KERN_ERR "%s: Primary firmware download failed\n",
@@ -294,19 +307,19 @@ symbol_dl_firmware(struct orinoco_private *priv,
 		return ret;
 	}
 
-	if (!priv->cached_fw) {
+	if (!orinoco_cached_fw_get(priv, false)) {
 		if (request_firmware(&fw_entry, fw->sta_fw, priv->dev) != 0) {
 			printk(KERN_ERR "%s: Cannot find firmware: %s\n",
 			       dev->name, fw->sta_fw);
 			return -ENOENT;
 		}
 	} else
-		fw_entry = priv->cached_fw;
+		fw_entry = orinoco_cached_fw_get(priv, false);
 
 	/* Load secondary firmware */
 	ret = symbol_dl_image(priv, fw, fw_entry->data,
 			      fw_entry->data + fw_entry->size, 1);
-	if (!priv->cached_fw)
+	if (!orinoco_cached_fw_get(priv, false))
 		release_firmware(fw_entry);
 	if (ret) {
 		printk(KERN_ERR "%s: Secondary firmware download failed\n",
@@ -340,9 +353,9 @@ int orinoco_download(struct orinoco_private *priv)
 	return err;
 }
 
+#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
 void orinoco_cache_fw(struct orinoco_private *priv, int ap)
 {
-#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
 	const struct firmware *fw_entry = NULL;
 	const char *pri_fw;
 	const char *fw;
@@ -362,12 +375,10 @@ void orinoco_cache_fw(struct orinoco_private *priv, int ap)
 		if (request_firmware(&fw_entry, fw, priv->dev) == 0)
 			priv->cached_fw = fw_entry;
 	}
-#endif
 }
 
 void orinoco_uncache_fw(struct orinoco_private *priv)
 {
-#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
 	if (priv->cached_pri_fw)
 		release_firmware(priv->cached_pri_fw);
 	if (priv->cached_fw)
@@ -375,5 +386,5 @@ void orinoco_uncache_fw(struct orinoco_private *priv)
 
 	priv->cached_pri_fw = NULL;
 	priv->cached_fw = NULL;
-#endif
 }
+#endif

drivers/net/wireless/orinoco/fw.h

@@ -10,7 +10,12 @@ struct orinoco_private;
 
 int orinoco_download(struct orinoco_private *priv);
 
+#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
 void orinoco_cache_fw(struct orinoco_private *priv, int ap);
 void orinoco_uncache_fw(struct orinoco_private *priv);
+#else
+#define orinoco_cache_fw(priv, ap) do { } while(0)
+#define orinoco_uncache_fw(priv) do { } while (0)
+#endif
 
 #endif /* _ORINOCO_FW_H_ */

drivers/net/wireless/orinoco/main.c

@@ -2580,8 +2580,10 @@ struct net_device
 	netif_carrier_off(dev);
 	priv->last_linkstatus = 0xffff;
 
+#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
 	priv->cached_pri_fw = NULL;
 	priv->cached_fw = NULL;
+#endif
 
 	/* Register PM notifiers */
 	orinoco_register_pm_notifier(priv);

drivers/net/wireless/orinoco/orinoco.h

@@ -159,9 +159,11 @@ struct orinoco_private {
 	unsigned int tkip_cm_active:1;
 	unsigned int key_mgmt:3;
 
+#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
 	/* Cached in memory firmware to use during ->resume. */
 	const struct firmware *cached_pri_fw;
 	const struct firmware *cached_fw;
+#endif
 
 	struct notifier_block pm_notifier;
 };