[ Upstream commit 389775a6605e040dddea21a778a88eaaa57c068d ]
It used netdev->uc and netdev->mc list in function hns3_recover_hw_addr() and hns3_remove_hw_addr(). We should add protect for them.
Fixes: f05e21097121 ("net: hns3: Clear mac vlan table entries when unload driver or function reset") Signed-off-by: Jian Shen shenjian15@huawei.com Signed-off-by: Peng Li lipeng321@huawei.com Signed-off-by: Huazhong Tan tanhuazhong@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index d6b488c2de332..c7d310903319f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -3774,12 +3774,13 @@ static int hns3_recover_hw_addr(struct net_device *ndev) struct netdev_hw_addr *ha, *tmp; int ret = 0;
+ netif_addr_lock_bh(ndev); /* go through and sync uc_addr entries to the device */ list = &ndev->uc; list_for_each_entry_safe(ha, tmp, &list->list, list) { ret = hns3_nic_uc_sync(ndev, ha->addr); if (ret) - return ret; + goto out; }
/* go through and sync mc_addr entries to the device */ @@ -3787,9 +3788,11 @@ static int hns3_recover_hw_addr(struct net_device *ndev) list_for_each_entry_safe(ha, tmp, &list->list, list) { ret = hns3_nic_mc_sync(ndev, ha->addr); if (ret) - return ret; + goto out; }
+out: + netif_addr_unlock_bh(ndev); return ret; }
@@ -3800,6 +3803,7 @@ static void hns3_remove_hw_addr(struct net_device *netdev)
hns3_nic_uc_unsync(netdev, netdev->dev_addr);
+ netif_addr_lock_bh(netdev); /* go through and unsync uc_addr entries to the device */ list = &netdev->uc; list_for_each_entry_safe(ha, tmp, &list->list, list) @@ -3810,6 +3814,8 @@ static void hns3_remove_hw_addr(struct net_device *netdev) list_for_each_entry_safe(ha, tmp, &list->list, list) if (ha->refcount > 1) hns3_nic_mc_unsync(netdev, ha->addr); + + netif_addr_unlock_bh(netdev); }
static void hns3_clear_tx_ring(struct hns3_enet_ring *ring)