net: remove stale mentions of dev_base_lock in comments

Change comments incorrectly mentioning dev_base_lock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/networking/netdevices.rst

@@ -252,8 +252,8 @@ ndo_eth_ioctl:
 	Context: process
 
 ndo_get_stats:
-	Synchronization: rtnl_lock() semaphore, dev_base_lock rwlock, or RCU.
-	Context: atomic (can't sleep under rwlock or RCU)
+	Synchronization: rtnl_lock() semaphore, or RCU.
+	Context: atomic (can't sleep under RCU)
 
 ndo_start_xmit:
 	Synchronization: __netif_tx_lock spinlock.

drivers/net/ethernet/cisco/enic/enic_main.c

@@ -872,7 +872,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
 	return NETDEV_TX_OK;
 }
 
-/* dev_base_lock rwlock held, nominally process context */
+/* rcu_read_lock potentially held, nominally process context */
 static void enic_get_stats(struct net_device *netdev,
 			   struct rtnl_link_stats64 *net_stats)
 {

drivers/net/ethernet/nvidia/forcedeth.c

@@ -1761,7 +1761,7 @@ static void nv_get_stats(int cpu, struct fe_priv *np,
 /*
  * nv_get_stats64: dev->ndo_get_stats64 function
  * Get latest stats value from the nic.
- * Called with read_lock(&dev_base_lock) held for read -
+ * Called with rcu_read_lock() held -
  * only synchronized against unregister_netdevice.
  */
 static void
@@ -3090,7 +3090,7 @@ static void set_bufsize(struct net_device *dev)
 
 /*
  * nv_change_mtu: dev->change_mtu function
- * Called with dev_base_lock held for read.
+ * Called with RTNL held for read.
  */
 static int nv_change_mtu(struct net_device *dev, int new_mtu)
 {

drivers/net/ethernet/sfc/efx_common.c

@@ -595,7 +595,7 @@ void efx_stop_all(struct efx_nic *efx)
 	efx_stop_datapath(efx);
 }
 
-/* Context: process, dev_base_lock or RTNL held, non-blocking. */
+/* Context: process, rcu_read_lock or RTNL held, non-blocking. */
 void efx_net_stats(struct net_device *net_dev, struct rtnl_link_stats64 *stats)
 {
 	struct efx_nic *efx = efx_netdev_priv(net_dev);

drivers/net/ethernet/sfc/falcon/efx.c

@@ -2085,7 +2085,7 @@ int ef4_net_stop(struct net_device *net_dev)
 	return 0;
 }
 
-/* Context: process, dev_base_lock or RTNL held, non-blocking. */
+/* Context: process, rcu_read_lock or RTNL held, non-blocking. */
 static void ef4_net_stats(struct net_device *net_dev,
 			  struct rtnl_link_stats64 *stats)
 {

drivers/net/ethernet/sfc/siena/efx_common.c

@@ -605,7 +605,7 @@ static size_t efx_siena_update_stats_atomic(struct efx_nic *efx, u64 *full_stats
 	return efx->type->update_stats(efx, full_stats, core_stats);
 }
 
-/* Context: process, dev_base_lock or RTNL held, non-blocking. */
+/* Context: process, rcu_read_lock or RTNL held, non-blocking. */
 void efx_siena_net_stats(struct net_device *net_dev,
 			 struct rtnl_link_stats64 *stats)
 {