evie/android_kernel_oneplus_msm8998
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Merge "net: hns: Fix a skb used after free bug"

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Linux Build Service Account 2018-09-04 11:41:11 -07:00 • committed by Gerrit - the friendly Code Review server
commit 105b2da4bc
2 changed files with 13 additions and 15 deletions
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22
drivers/net/ethernet/hisilicon/hns/hns_enet.c
View file

@ -100,9 +100,9 @@ static void unfill_desc(struct hnae_ring *ring)
ring_ptr_move_bw(ring, next_to_use);
}
int hns_nic_net_xmit_hw(struct net_device *ndev,
struct sk_buff *skb,
struct hns_nic_ring_data *ring_data)
netdev_tx_t hns_nic_net_xmit_hw(struct net_device *ndev,
struct sk_buff *skb,
struct hns_nic_ring_data *ring_data)
{
struct hns_nic_priv *priv = netdev_priv(ndev);
struct hnae_ring *ring = ring_data->ring;
@ -172,6 +172,10 @@ int hns_nic_net_xmit_hw(struct net_device *ndev,
dev_queue = netdev_get_tx_queue(ndev, skb->queue_mapping);
netdev_tx_sent_queue(dev_queue, skb->len);
ndev->trans_start = jiffies;
ndev->stats.tx_bytes += skb->len;
ndev->stats.tx_packets++;
wmb(); /* commit all data before submit */
assert(skb->queue_mapping < priv->ae_handle->q_num);
hnae_queue_xmit(priv->ae_handle->qs[skb->queue_mapping], buf_num);
@ -1089,17 +1093,11 @@ static netdev_tx_t hns_nic_net_xmit(struct sk_buff *skb,
struct net_device *ndev)
{
struct hns_nic_priv *priv = netdev_priv(ndev);
int ret;
assert(skb->queue_mapping < ndev->ae_handle->q_num);
ret = hns_nic_net_xmit_hw(ndev, skb,
&tx_ring_data(priv, skb->queue_mapping));
if (ret == NETDEV_TX_OK) {
ndev->trans_start = jiffies;
ndev->stats.tx_bytes += skb->len;
ndev->stats.tx_packets++;
}
return (netdev_tx_t)ret;
return hns_nic_net_xmit_hw(ndev, skb,
&tx_ring_data(priv, skb->queue_mapping));
}
static int hns_nic_change_mtu(struct net_device *ndev, int new_mtu)

6
drivers/net/ethernet/hisilicon/hns/hns_enet.h
View file

@ -77,8 +77,8 @@ void hns_ethtool_set_ops(struct net_device *ndev);
void hns_nic_net_reset(struct net_device *ndev);
void hns_nic_net_reinit(struct net_device *netdev);
int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
int hns_nic_net_xmit_hw(struct net_device *ndev,
struct sk_buff *skb,
struct hns_nic_ring_data *ring_data);
netdev_tx_t hns_nic_net_xmit_hw(struct net_device *ndev,
struct sk_buff *skb,
struct hns_nic_ring_data *ring_data);
#endif /**__HNS_ENET_H */