Re: [dpdk-dev] [PATCH v2 3/6] net/mvpp2: fix array initialization

[Tomasz Duszynski <tdu@semihalf.com>]

On Fri, Aug 24, 2018 at 05:46:42PM +0100, Ferruh Yigit wrote:
> On 8/24/2018 3:54 PM, Tomasz Duszynski wrote:
> > Fix used_bpools array initialization by using range initializer.
> > This way all necessary variables are properly initialized regardless
> > of PP2_NUM_PKT_PROC value.
> >
> > Fixes: 0ddc9b815b11 ("net/mrvl: add net PMD skeleton")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Tomasz Duszynski <tdu@semihalf.com>
> > ---
> >  drivers/net/mvpp2/mrvl_ethdev.c | 3 +--
> >  1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c
> > index 7ea8946..60ca6e0 100644
> > --- a/drivers/net/mvpp2/mrvl_ethdev.c
> > +++ b/drivers/net/mvpp2/mrvl_ethdev.c
> > @@ -84,8 +84,7 @@ static const char * const valid_args[] = {
> >  static int used_hifs = MRVL_MUSDK_HIFS_RESERVED;
> >  static struct pp2_hif *hifs[RTE_MAX_LCORE];
> >  static int used_bpools[PP2_NUM_PKT_PROC] = {
> > -	MRVL_MUSDK_BPOOLS_RESERVED,
> > -	MRVL_MUSDK_BPOOLS_RESERVED
> > +	[0 ... PP2_NUM_PKT_PROC - 1] = MRVL_MUSDK_BPOOLS_RESERVED
>
> range initializer is not part of standard, although I am sure this won't be
> first GCC extension we rely on, and I don't have any other option than memset
> for this.
>
> So just a reminder about extension usage, if you are happy with this
> implementation, lets keep it.

I would prefer to leave it as is. As you pointed out DPDK has
already started using it anyway.

--
- Tomasz Duszyński