Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR (net-6.12-rc7).

Conflicts:

drivers/net/ethernet/freescale/enetc/enetc_pf.c
  e15c5506dd39 ("net: enetc: allocate vf_state during PF probes")
  3774409fd4c6 ("net: enetc: build enetc_pf_common.c as a separate module")
https://lore.kernel.org/20241105114100.118bd35e@canb.auug.org.au

Adjacent changes:

drivers/net/ethernet/ti/am65-cpsw-nuss.c
  de794169cf17 ("net: ethernet: ti: am65-cpsw: Fix multi queue Rx on J7")
  4a7b2ba94a59 ("net: ethernet: ti: am65-cpsw: Use tstats instead of open coded version")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 34 insertions, 7 deletions

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index b7a817e483aa..6090ba9f1bb2 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1495,6 +1495,7 @@ static int nf_tables_newtable(struct sk_buff *skb, const struct nfnl_info *info,
 	INIT_LIST_HEAD(&table->sets);
 	INIT_LIST_HEAD(&table->objects);
 	INIT_LIST_HEAD(&table->flowtables);
+	write_pnet(&table->net, net);
 	table->family = family;
 	table->flags = flags;
 	table->handle = ++nft_net->table_handle;
@@ -11452,22 +11453,48 @@ int nft_data_dump(struct sk_buff *skb, int attr, const struct nft_data *data,
 }
 EXPORT_SYMBOL_GPL(nft_data_dump);
 
-int __nft_release_basechain(struct nft_ctx *ctx)
+static void __nft_release_basechain_now(struct nft_ctx *ctx)
 {
 	struct nft_rule *rule, *nr;
 
-	if (WARN_ON(!nft_is_base_chain(ctx->chain)))
-		return 0;
-
-	nf_tables_unregister_hook(ctx->net, ctx->chain->table, ctx->chain);
 	list_for_each_entry_safe(rule, nr, &ctx->chain->rules, list) {
 		list_del(&rule->list);
-		nft_use_dec(&ctx->chain->use);
 		nf_tables_rule_release(ctx, rule);
 	}
+	nf_tables_chain_destroy(ctx->chain);
+}
+
+static void nft_release_basechain_rcu(struct rcu_head *head)
+{
+	struct nft_chain *chain = container_of(head, struct nft_chain, rcu_head);
+	struct nft_ctx ctx = {
+		.family	= chain->table->family,
+		.chain	= chain,
+		.net	= read_pnet(&chain->table->net),
+	};
+
+	__nft_release_basechain_now(&ctx);
+	put_net(ctx.net);
+}
+
+int __nft_release_basechain(struct nft_ctx *ctx)
+{
+	struct nft_rule *rule;
+
+	if (WARN_ON_ONCE(!nft_is_base_chain(ctx->chain)))
+		return 0;
+
+	nf_tables_unregister_hook(ctx->net, ctx->chain->table, ctx->chain);
+	list_for_each_entry(rule, &ctx->chain->rules, list)
+		nft_use_dec(&ctx->chain->use);
+
 	nft_chain_del(ctx->chain);
 	nft_use_dec(&ctx->table->use);
-	nf_tables_chain_destroy(ctx->chain);
+
+	if (maybe_get_net(ctx->net))
+		call_rcu(&ctx->chain->rcu_head, nft_release_basechain_rcu);
+	else
+		__nft_release_basechain_now(ctx);
 
 	return 0;
 }