diff options
| author | Stanislav Fomichev <sdf@fomichev.me> | 2025-03-05 08:37:20 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-03-06 12:59:43 -0800 |
| commit | c4f0f30b424e7258a777bcbcbf9006207da4854c (patch) | |
| tree | 6c8c9e3a34a4650fe349dd4d7ca1d12a43a0c624 | |
| parent | d4c22ec680c8db832ffc0b964c6008e65436cba8 (diff) | |
net: hold netdev instance lock during nft ndo_setup_tc
Introduce new dev_setup_tc for nft ndo_setup_tc paths.
Reviewed-by: Eric Dumazet <edumazet@google.com>
Cc: Saeed Mahameed <saeed@kernel.org>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250305163732.2766420-3-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_main.c | 2 | ||||
| -rw-r--r-- | include/linux/netdevice.h | 2 | ||||
| -rw-r--r-- | net/core/dev.c | 18 | ||||
| -rw-r--r-- | net/netfilter/nf_flow_table_offload.c | 2 | ||||
| -rw-r--r-- | net/netfilter/nf_tables_offload.c | 2 |
5 files changed, 22 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index 9f4d223dffcf..032e1a58af6f 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -3894,10 +3894,8 @@ exit: if (test_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section)) return 0; - netdev_lock(netdev); netif_set_real_num_rx_queues(netdev, total_qps); netif_set_real_num_tx_queues(netdev, total_qps); - netdev_unlock(netdev); return ret; } diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 33066b155c84..69951eeb96d2 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3353,6 +3353,8 @@ int dev_alloc_name(struct net_device *dev, const char *name); int dev_open(struct net_device *dev, struct netlink_ext_ack *extack); void dev_close(struct net_device *dev); void dev_close_many(struct list_head *head, bool unlink); +int dev_setup_tc(struct net_device *dev, enum tc_setup_type type, + void *type_data); void dev_disable_lro(struct net_device *dev); int dev_loopback_xmit(struct net *net, struct sock *sk, struct sk_buff *newskb); u16 dev_pick_tx_zero(struct net_device *dev, struct sk_buff *skb, diff --git a/net/core/dev.c b/net/core/dev.c index 7a327c782ea4..57af25683ea1 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1786,6 +1786,24 @@ void dev_close(struct net_device *dev) } EXPORT_SYMBOL(dev_close); +int dev_setup_tc(struct net_device *dev, enum tc_setup_type type, + void *type_data) +{ + const struct net_device_ops *ops = dev->netdev_ops; + int ret; + + ASSERT_RTNL(); + + if (!ops->ndo_setup_tc) + return -EOPNOTSUPP; + + netdev_lock_ops(dev); + ret = ops->ndo_setup_tc(dev, type, type_data); + netdev_unlock_ops(dev); + + return ret; +} +EXPORT_SYMBOL(dev_setup_tc); /** * dev_disable_lro - disable Large Receive Offload on a device diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c index e06bc36f49fe..0ec4abded10d 100644 --- a/net/netfilter/nf_flow_table_offload.c +++ b/net/netfilter/nf_flow_table_offload.c @@ -1175,7 +1175,7 @@ static int nf_flow_table_offload_cmd(struct flow_block_offload *bo, nf_flow_table_block_offload_init(bo, dev_net(dev), cmd, flowtable, extack); down_write(&flowtable->flow_block_lock); - err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_FT, bo); + err = dev_setup_tc(dev, TC_SETUP_FT, bo); up_write(&flowtable->flow_block_lock); if (err < 0) return err; diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c index 64675f1c7f29..b761899c143c 100644 --- a/net/netfilter/nf_tables_offload.c +++ b/net/netfilter/nf_tables_offload.c @@ -390,7 +390,7 @@ static int nft_block_offload_cmd(struct nft_base_chain *chain, nft_flow_block_offload_init(&bo, dev_net(dev), cmd, chain, &extack); - err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_BLOCK, &bo); + err = dev_setup_tc(dev, TC_SETUP_BLOCK, &bo); if (err < 0) return err; |