[dpdk-dev] [PATCH] net/iavf: fix missed pointer check
Wenzhuo Lu
wenzhuo.lu at intel.com
Tue Nov 10 07:46:01 CET 2020
The return value of rte_mempool_default_cache should be
checked as it can be NULL.
Fixes: 9ab9514c150e ("net/iavf: enable AVX512 for Tx")
Reported-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
drivers/net/iavf/iavf_rxtx_vec_avx512.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/iavf/iavf_rxtx_vec_avx512.c b/drivers/net/iavf/iavf_rxtx_vec_avx512.c
index 8680734..584d12e 100644
--- a/drivers/net/iavf/iavf_rxtx_vec_avx512.c
+++ b/drivers/net/iavf/iavf_rxtx_vec_avx512.c
@@ -1424,7 +1424,12 @@
struct rte_mempool *mp = txep[0].mbuf->pool;
struct rte_mempool_cache *cache = rte_mempool_default_cache(mp,
rte_lcore_id());
- void **cache_objs = &cache->objs[cache->len];
+ void **cache_objs;
+
+ if (!cache || cache->len == 0)
+ goto normal;
+
+ cache_objs = &cache->objs[cache->len];
if (n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
rte_mempool_ops_enqueue_bulk(mp, (void *)txep, n);
@@ -1462,6 +1467,7 @@
goto done;
}
+normal:
m = rte_pktmbuf_prefree_seg(txep[0].mbuf);
if (likely(m)) {
free[0] = m;
--
1.9.3
More information about the dev
mailing list