On 04/06/2015 11:05 AM, Arturo Borrero Gonzalez wrote: > linux_list.h:381:59: warning: right-hand operand of comma expression has no effect [-Wunused-value] > for (pos = list_entry((head)->next, typeof(*pos), member), \ > ^ > libiptc.c:552:2: note: in expansion of macro 'list_for_each_entry' > list_for_each_entry(c, &h->chains, list) { > ^ > > [ Patch copied from one similar of Patrick McHardy on libnftnl ] > > Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@xxxxxxxxx> > --- > libiptc/linux_list.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/libiptc/linux_list.h b/libiptc/linux_list.h > index abdcf88..559e33c 100644 > --- a/libiptc/linux_list.h > +++ b/libiptc/linux_list.h > @@ -27,7 +27,7 @@ > 1; \ > }) > > -#define prefetch(x) 1 > +#define prefetch(x) ((void)0) > > /* empty define to make this work in userspace -HW */ > #define smp_wmb() > Why not just use "do {} while (0)"? I know that is what is used in the kernel for functions that don't do anything. - Alex -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html