Re: [PATCH 03/12] crypto/ipsec_mb: fix build with GCC 12

[Stephen Hemminger <stephen@networkplumber.org>]

On Wed, 18 May 2022 12:16:48 +0200
David Marchand <david.marchand@redhat.com> wrote:

> GCC 12 raises the following warning:
> 
> In function ‘__rte_ring_enqueue_elems_64’,
>     inlined from ‘__rte_ring_enqueue_elems’ at
>         ../lib/ring/rte_ring_elem_pvt.h:130:3,
>     inlined from ‘__rte_ring_do_hts_enqueue_elem’ at
>         ../lib/ring/rte_ring_hts_elem_pvt.h:196:3,
>     inlined from ‘rte_ring_mp_hts_enqueue_burst_elem’ at
>         ../lib/ring/rte_ring_hts.h:110:9,
>     inlined from ‘rte_ring_enqueue_burst_elem’ at
>         ../lib/ring/rte_ring_elem.h:577:10,
>     inlined from ‘rte_ring_enqueue_burst’ at
>         ../lib/ring/rte_ring.h:738:9,
>     inlined from ‘process_op_bit’ at
>         ../drivers/crypto/ipsec_mb/pmd_snow3g.c:425:16,
>     inlined from ‘snow3g_pmd_dequeue_burst’ at
>         ../drivers/crypto/ipsec_mb/pmd_snow3g.c:484:20:
> ../lib/ring/rte_ring_elem_pvt.h:68:44: error: array subscript 1 is
>         outside array bounds of ‘struct rte_crypto_op[0]’
>         [-Werror=array-bounds]
>    68 |                         ring[idx + 1] = obj[i + 1];
>       |                                         ~~~^~~~~~~
> ../drivers/crypto/ipsec_mb/pmd_snow3g.c: In function
>         ‘snow3g_pmd_dequeue_burst’:
> ../drivers/crypto/ipsec_mb/pmd_snow3g.c:434:1: note:
>         at offset 8 into object ‘op’ of size 8
>   434 | snow3g_pmd_dequeue_burst(void *queue_pair,
>       | ^~~~~~~~~~~~~~~~~~~~~~~~
> 
> Validate that one (exactly) op has been processed or return early.
> 
> Fixes: b537abdbee74 ("crypto/snow3g: support bit-level operations")
> Cc: stable@dpdk.org
> 
> Signed-off-by: David Marchand <david.marchand@redhat.com>

Acked-by: Stephen Hemminger <stephen@networkplumber.org>