Thread (10 messages) 10 messages, 2 authors, 2017-02-23
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[PATCH 8/8] netfilter: nfnetlink: remove static declaration from err_list

From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: 2017-02-23 11:14:25
Also in: netfilter-devel
Subsystem: netfilter, networking [general], the rest · Maintainers: Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Liping Zhang <redacted>

Otherwise, different subsys will race to access the err_list, with holding
the different nfnl_lock(subsys_id).

But this will not happen now, since ->call_batch is only implemented by
nftables, so the err_list is protected by nfnl_lock(NFNL_SUBSYS_NFTABLES).

Signed-off-by: Liping Zhang <redacted>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nfnetlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index a09fa9fd8f3d..6fa448478cba 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -279,7 +279,7 @@ static void nfnetlink_rcv_batch(struct sk_buff *skb, struct nlmsghdr *nlh,
 	struct net *net = sock_net(skb->sk);
 	const struct nfnetlink_subsystem *ss;
 	const struct nfnl_callback *nc;
-	static LIST_HEAD(err_list);
+	LIST_HEAD(err_list);
 	u32 status;
 	int err;
 
-- 
2.1.4
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