From b10d6044599d8c1fa7fbb2374bcbf30118d39db1 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 24 Oct 2020 21:14:16 +0200 Subject: kernel: add linux 5.10 support Signed-off-by: Felix Fietkau --- ...ft_flow_offload-handle-netdevice-events-f.patch | 106 +++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 target/linux/generic/backport-5.10/343-netfilter-nft_flow_offload-handle-netdevice-events-f.patch (limited to 'target/linux/generic/backport-5.10/343-netfilter-nft_flow_offload-handle-netdevice-events-f.patch') diff --git a/target/linux/generic/backport-5.10/343-netfilter-nft_flow_offload-handle-netdevice-events-f.patch b/target/linux/generic/backport-5.10/343-netfilter-nft_flow_offload-handle-netdevice-events-f.patch new file mode 100644 index 0000000000..137264cb9f --- /dev/null +++ b/target/linux/generic/backport-5.10/343-netfilter-nft_flow_offload-handle-netdevice-events-f.patch @@ -0,0 +1,106 @@ +From: Pablo Neira Ayuso +Date: Thu, 25 Jan 2018 12:58:55 +0100 +Subject: [PATCH] netfilter: nft_flow_offload: handle netdevice events from + nf_flow_table + +Move the code that deals with device events to the core. + +Signed-off-by: Pablo Neira Ayuso +--- + +--- a/net/netfilter/nf_flow_table_core.c ++++ b/net/netfilter/nf_flow_table_core.c +@@ -577,13 +577,41 @@ void nf_flow_table_free(struct nf_flowta + } + EXPORT_SYMBOL_GPL(nf_flow_table_free); + ++static int nf_flow_table_netdev_event(struct notifier_block *this, ++ unsigned long event, void *ptr) ++{ ++ struct net_device *dev = netdev_notifier_info_to_dev(ptr); ++ ++ if (event != NETDEV_DOWN) ++ return NOTIFY_DONE; ++ ++ nf_flow_table_cleanup(dev); ++ ++ return NOTIFY_DONE; ++} ++ ++static struct notifier_block flow_offload_netdev_notifier = { ++ .notifier_call = nf_flow_table_netdev_event, ++}; ++ + static int __init nf_flow_table_module_init(void) + { +- return nf_flow_table_offload_init(); ++ int ret; ++ ++ ret = nf_flow_table_offload_init(); ++ if (ret) ++ return ret; ++ ++ ret = register_netdevice_notifier(&flow_offload_netdev_notifier); ++ if (ret) ++ nf_flow_table_offload_exit(); ++ ++ return ret; + } + + static void __exit nf_flow_table_module_exit(void) + { ++ unregister_netdevice_notifier(&flow_offload_netdev_notifier); + nf_flow_table_offload_exit(); + } + +--- a/net/netfilter/nft_flow_offload.c ++++ b/net/netfilter/nft_flow_offload.c +@@ -237,47 +237,14 @@ static struct nft_expr_type nft_flow_off + .owner = THIS_MODULE, + }; + +-static int flow_offload_netdev_event(struct notifier_block *this, +- unsigned long event, void *ptr) +-{ +- struct net_device *dev = netdev_notifier_info_to_dev(ptr); +- +- if (event != NETDEV_DOWN) +- return NOTIFY_DONE; +- +- nf_flow_table_cleanup(dev); +- +- return NOTIFY_DONE; +-} +- +-static struct notifier_block flow_offload_netdev_notifier = { +- .notifier_call = flow_offload_netdev_event, +-}; +- + static int __init nft_flow_offload_module_init(void) + { +- int err; +- +- err = register_netdevice_notifier(&flow_offload_netdev_notifier); +- if (err) +- goto err; +- +- err = nft_register_expr(&nft_flow_offload_type); +- if (err < 0) +- goto register_expr; +- +- return 0; +- +-register_expr: +- unregister_netdevice_notifier(&flow_offload_netdev_notifier); +-err: +- return err; ++ return nft_register_expr(&nft_flow_offload_type); + } + + static void __exit nft_flow_offload_module_exit(void) + { + nft_unregister_expr(&nft_flow_offload_type); +- unregister_netdevice_notifier(&flow_offload_netdev_notifier); + } + + module_init(nft_flow_offload_module_init); -- cgit v1.2.3