Re: [PATCH 1/7] member: replace zero length array with flex array

[Stephen Hemminger <stephen@networkplumber.org>]

On Fri, 13 Jan 2023 16:19:21 -0800
Tyler Retzlaff <roretzla@linux.microsoft.com> wrote:

> On Fri, Jan 13, 2023 at 01:51:59PM -0800, Stephen Hemminger wrote:
> > Zero length arrays are GNU extension. Replace with
> > standard flex array.
> > 
> > Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> > ---
> >  lib/member/rte_member_heap.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/lib/member/rte_member_heap.h b/lib/member/rte_member_heap.h
> > index 9c4a01aebe95..ab6319bc2de4 100644
> > --- a/lib/member/rte_member_heap.h
> > +++ b/lib/member/rte_member_heap.h
> > @@ -26,7 +26,7 @@ struct hash {
> >  	uint16_t bkt_cnt;
> >  	uint16_t num_item;
> >  	uint32_t seed;
> > -	struct hash_bkt buckets[0];
> > +	struct hash_bkt buckets[];
> >  };
> >  
> >  struct node {
> > --   
> 
> i suppose arguably this series depends on the series Bruce is putting
> up defaulting the minimum C standard to C99 since technically that's the
> minimum needed for the flexible array members.
> 
> Series-acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
> 

There is already flex array usage in several places in DPDK.
Therefore this won't be raising the requirements.