Differences

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--- alloc_netdev_etherdev [2018/08/28 07:52] – [alloc_etherdev*()] rpjday
+++ alloc_netdev_etherdev [2018/08/28 08:00] (current) – [netdev private data] rpjday
@@ Line 5: / Line 5: @@
 ===== netdev private data =====
-From ''netdevice.h'', optional private data is stored (aligned) after the end of the structure:
+From ''include/linux/netdevice.h'', optional private data is stored (aligned) after the end of the structure:
 <code>
@@ Line 94: / Line 94: @@
 </code>
-==== alloc_etherdev(),alloc_etherdev_mq() ====
+==== alloc_etherdev(),alloc_etherdev_mq(),alloc_etherdev_mqs() ====
-From ''include/linux/netdevice.h'':
+From ''include/linux/etherdevice.h'':
 <code>
@@ Line 113: / Line 113: @@
 	return alloc_netdev_mqs(sizeof_priv, "eth%d", NET_NAME_UNKNOWN,
 				ether_setup, txqs, rxqs);
+}
+</code>
+==== devm_alloc_etherdev*() ====
+From ''include/linux/etherdevice.h'':
+<code>
+struct net_device *devm_alloc_etherdev_mqs(struct device *dev, int sizeof_priv,
+					   unsigned int txqs,
+					   unsigned int rxqs);
+#define devm_alloc_etherdev(dev, sizeof_priv) devm_alloc_etherdev_mqs(dev, sizeof_priv, 1, 1)
+</code>
+From ''net/ethernet/net.c'':
+<code>
+struct net_device *devm_alloc_etherdev_mqs(struct device *dev, int sizeof_priv,
+					   unsigned int txqs, unsigned int rxqs)
+{
+	struct net_device **dr;
+	struct net_device *netdev;
+	dr = devres_alloc(devm_free_netdev, sizeof(*dr), GFP_KERNEL);
+	if (!dr)
+		return NULL;
+	netdev = alloc_etherdev_mqs(sizeof_priv, txqs, rxqs);
+	if (!netdev) {
+		devres_free(dr);
+		return NULL;
+	}
+	*dr = netdev;
+	devres_add(dev, dr);
+	return netdev;
 }
 </code>