diff options
| author | Patrick McHardy <kaber@trash.net> | 2007-06-30 13:35:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-10 22:16:23 -0700 |
| commit | 61cbc2fca6335be52788773b21efdc52a2750924 (patch) | |
| tree | 489e6a9571c7fabd49dcff384dd634635fe66555 /net/core | |
| parent | d62733c8e437fdb58325617c4b3331769ba82d70 (diff) | |
[NET]: Fix secondary unicast/multicast address count maintenance
When a reference to an existing address is increased or decreased without
hitting zero, the address count is incorrectly adjusted.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 21 | ||||
| -rw-r--r-- | net/core/dev_mcast.c | 11 |
2 files changed, 14 insertions, 18 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 7ddf66d0ad5e..4221dcda88d7 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2607,8 +2607,8 @@ void dev_set_rx_mode(struct net_device *dev) netif_tx_unlock_bh(dev); } -int __dev_addr_delete(struct dev_addr_list **list, void *addr, int alen, - int glbl) +int __dev_addr_delete(struct dev_addr_list **list, int *count, + void *addr, int alen, int glbl) { struct dev_addr_list *da; @@ -2626,13 +2626,15 @@ int __dev_addr_delete(struct dev_addr_list **list, void *addr, int alen, *list = da->next; kfree(da); + (*count)--; return 0; } } return -ENOENT; } -int __dev_addr_add(struct dev_addr_list **list, void *addr, int alen, int glbl) +int __dev_addr_add(struct dev_addr_list **list, int *count, + void *addr, int alen, int glbl) { struct dev_addr_list *da; @@ -2659,6 +2661,7 @@ int __dev_addr_add(struct dev_addr_list **list, void *addr, int alen, int glbl) da->da_gusers = glbl ? 1 : 0; da->next = *list; *list = da; + (*count)++; return 0; } @@ -2692,11 +2695,9 @@ int dev_unicast_delete(struct net_device *dev, void *addr, int alen) ASSERT_RTNL(); netif_tx_lock_bh(dev); - err = __dev_addr_delete(&dev->uc_list, addr, alen, 0); - if (!err) { - dev->uc_count--; + err = __dev_addr_delete(&dev->uc_list, &dev->uc_count, addr, alen, 0); + if (!err) __dev_set_rx_mode(dev); - } netif_tx_unlock_bh(dev); return err; } @@ -2718,11 +2719,9 @@ int dev_unicast_add(struct net_device *dev, void *addr, int alen) ASSERT_RTNL(); netif_tx_lock_bh(dev); - err = __dev_addr_add(&dev->uc_list, addr, alen, 0); - if (!err) { - dev->uc_count++; + err = __dev_addr_add(&dev->uc_list, &dev->uc_count, addr, alen, 0); + if (!err) __dev_set_rx_mode(dev); - } netif_tx_unlock_bh(dev); return err; } diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c index 5cc9b448c443..aa38100601fb 100644 --- a/net/core/dev_mcast.c +++ b/net/core/dev_mcast.c @@ -72,10 +72,9 @@ int dev_mc_delete(struct net_device *dev, void *addr, int alen, int glbl) int err; netif_tx_lock_bh(dev); - err = __dev_addr_delete(&dev->mc_list, addr, alen, glbl); + err = __dev_addr_delete(&dev->mc_list, &dev->mc_count, + addr, alen, glbl); if (!err) { - dev->mc_count--; - /* * We have altered the list, so the card * loaded filter is now wrong. Fix it @@ -96,11 +95,9 @@ int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl) int err; netif_tx_lock_bh(dev); - err = __dev_addr_add(&dev->mc_list, addr, alen, glbl); - if (!err) { - dev->mc_count++; + err = __dev_addr_add(&dev->mc_list, &dev->mc_count, addr, alen, glbl); + if (!err) __dev_set_rx_mode(dev); - } netif_tx_unlock_bh(dev); return err; } |