> Hi all,
>
> After merging the netfilter-next tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
>
> net/netfilter/nfnetlink_acct.c: In function 'nfnl_acct_try_del':
> net/netfilter/nfnetlink_acct.c:329:15: warning: unused variable 'refcount' [-
> Wunused-variable]
>
> On Wed, Mar 15, 2017 at 01:10:38PM +0200, Elena Reshetova wrote:
> > This series, for the netfilter subsystem, replaces atomic_t reference
> > counters with the new refcount_t type and API (see
> > include/linux/refcount.h).
> > By doing this we prevent intentional or accidental
> > underflows
