Hey,
so I keep getting those since recently:
net/netfilter/nfnetlink_queue.c:519:19: warning: ‘nfnl_ct’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
if (ct && nfnl_ct->build(skb, ct, ctinfo, NFQA_CT, NFQA_CT_INFO) < 0)
^
net/netfilter/nfnetlink_queue.c:316:23: note: ‘nfnl_ct’ was declared here
struct nfnl_ct_hook *nfnl_ct;
^
net/netfilter/nfnetlink_queue.c: In function ‘nfqnl_recv_verdict’:
net/netfilter/nfnetlink_queue.c:1083:11: warning: ‘nfnl_ct’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
nfnl_ct->seq_adjust(entry->skb, ct, ctinfo, diff);
^
and was thinking can we shut them up like this? I know, it is ugly :-\
I mean, it is obvious in both cases that nfnl_ct won't be used if ct is
not set but apparently gcc can't see that far...
---
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 7d81d280cb4f..cd61b0b5c413 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -372,6 +372,8 @@ nfqnl_build_packet_message(struct net *net, struct
nfqnl_instance *queue,
if (ct != NULL)
size += nfnl_ct->build_size(ct);
}
+ } else {
+ nfnl_ct = NULL;
}
if (queue->flags & NFQA_CFG_F_UID_GID) {
@@ -1069,6 +1071,8 @@ nfqnl_recv_verdict(struct sock *ctnl, struct sk_buff *skb,
nfnl_ct = rcu_dereference(nfnl_ct_hook);
if (nfnl_ct != NULL)
ct = nfqnl_ct_parse(nfnl_ct, nlh, nfqa, entry, &ctinfo);
+ } else {
+ nfnl_ct = NULL;
}
if (nfqa[NFQA_PAYLOAD]) {
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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