[dpdk-dev] [PATCH v3 1/2] mempool: fix first memory area notification

[Pavan Nikhilesh]

Mempool creation needs to be completed first before notifying mempool to
register the mempool area.

Fixes: 12b8cc1a7e86 ("mempool: notify memory area to pool")
Cc: stable at dpdk.org

Signed-off-by: Pavan Nikhilesh <pbhagavatula at caviumnetworks.com>
Acked-by: Santosh Shukla <santosh.shukla at caviumnetworks.com>
---

 v3 Changes:
   - Redo commit title as fix.

 v2 Changes:
   - Redo commit log.

 lib/librte_mempool/rte_mempool.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index d50dba493..6d1702252 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -367,11 +367,6 @@ rte_mempool_populate_iova(struct rte_mempool *mp, char *vaddr,
 	struct rte_mempool_memhdr *memhdr;
 	int ret;

-	/* Notify memory area to mempool */
-	ret = rte_mempool_ops_register_memory_area(mp, vaddr, iova, len);
-	if (ret != -ENOTSUP && ret < 0)
-		return ret;
-
 	/* create the internal ring if not already done */
 	if ((mp->flags & MEMPOOL_F_POOL_CREATED) == 0) {
 		ret = rte_mempool_ops_alloc(mp);
@@ -380,6 +375,11 @@ rte_mempool_populate_iova(struct rte_mempool *mp, char *vaddr,
 		mp->flags |= MEMPOOL_F_POOL_CREATED;
 	}

+	/* Notify memory area to mempool */
+	ret = rte_mempool_ops_register_memory_area(mp, vaddr, iova, len);
+	if (ret != -ENOTSUP && ret < 0)
+		return ret;
+
 	/* mempool is already populated */
 	if (mp->populated_size >= mp->size)
 		return -ENOSPC;
--
2.14.1