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-rw-r--r--include/linux/netdevice.h5
-rw-r--r--net/core/dev_addr_lists.c12
2 files changed, 11 insertions, 6 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a1d109590da..d0522bb2d4a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2450,6 +2450,11 @@ static inline void netif_addr_lock(struct net_device *dev)
spin_lock(&dev->addr_list_lock);
}
+static inline void netif_addr_lock_nested(struct net_device *dev)
+{
+ spin_lock_nested(&dev->addr_list_lock, SINGLE_DEPTH_NESTING);
+}
+
static inline void netif_addr_lock_bh(struct net_device *dev)
{
spin_lock_bh(&dev->addr_list_lock);
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index c34ce9f9c97..29c07fef922 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -439,11 +439,11 @@ int dev_uc_sync(struct net_device *to, struct net_device *from)
if (to->addr_len != from->addr_len)
return -EINVAL;
- netif_addr_lock_bh(to);
+ netif_addr_lock_nested(to);
err = __hw_addr_sync(&to->uc, &from->uc, to->addr_len);
if (!err)
__dev_set_rx_mode(to);
- netif_addr_unlock_bh(to);
+ netif_addr_unlock(to);
return err;
}
EXPORT_SYMBOL(dev_uc_sync);
@@ -463,7 +463,7 @@ void dev_uc_unsync(struct net_device *to, struct net_device *from)
return;
netif_addr_lock_bh(from);
- netif_addr_lock(to);
+ netif_addr_lock_nested(to);
__hw_addr_unsync(&to->uc, &from->uc, to->addr_len);
__dev_set_rx_mode(to);
netif_addr_unlock(to);
@@ -602,11 +602,11 @@ int dev_mc_sync(struct net_device *to, struct net_device *from)
if (to->addr_len != from->addr_len)
return -EINVAL;
- netif_addr_lock_bh(to);
+ netif_addr_lock_nested(to);
err = __hw_addr_sync(&to->mc, &from->mc, to->addr_len);
if (!err)
__dev_set_rx_mode(to);
- netif_addr_unlock_bh(to);
+ netif_addr_unlock(to);
return err;
}
EXPORT_SYMBOL(dev_mc_sync);
@@ -626,7 +626,7 @@ void dev_mc_unsync(struct net_device *to, struct net_device *from)
return;
netif_addr_lock_bh(from);
- netif_addr_lock(to);
+ netif_addr_lock_nested(to);
__hw_addr_unsync(&to->mc, &from->mc, to->addr_len);
__dev_set_rx_mode(to);
netif_addr_unlock(to);