crypto/ipsec_mb: fix build with GCC 12

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>

diff --git a/drivers/crypto/ipsec_mb/pmd_snow3g.c b/drivers/crypto/ipsec_mb/pmd_snow3g.c
index ebc9a0b5624cd620adeb127480d6b1c08b19a83e..9a85f467210b51266f4370ee4c1811db611bf498 100644 (file)
--- a/drivers/crypto/ipsec_mb/pmd_snow3g.c
+++ b/drivers/crypto/ipsec_mb/pmd_snow3g.c
@@ -422,12 +422,13 @@ process_op_bit(struct rte_crypto_op *op, struct snow3g_session *session,
                op->sym->session = NULL;
        }
 
-       enqueued_op = rte_ring_enqueue_burst(qp->ingress_queue,
-                       (void **)&op, processed_op, NULL);
+       if (unlikely(processed_op != 1))
+               return 0;
+       enqueued_op = rte_ring_enqueue(qp->ingress_queue, op);
        qp->stats.enqueued_count += enqueued_op;
        *accumulated_enqueued_ops += enqueued_op;
 
-       return enqueued_op;
+       return 1;
 }
 
 static uint16_t