[PATCH] netfilter: avoid harmless unnitialized variable warnings
Pablo Neira Ayuso
pablo at netfilter.org
Mon Nov 23 02:23:02 PST 2015
On Thu, Nov 19, 2015 at 01:49:59PM +0100, Arnd Bergmann wrote:
> Several ARM default configurations give us warnings on recent
> compilers about potentially uninitialized variables in the
> nfnetlink code in two functions:
>
> net/netfilter/nfnetlink_queue.c: In function 'nfqnl_build_packet_message':
> 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)
>
> Moving the rcu_dereference(nfnl_ct_hook) call outside of the
> conditional code avoids the warning without forcing us to
> preinitialize the variable.
Applied, thanks Arnd.
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