test/mbuf: fix external mbuf case with assert enabled

[ upstream commit 6dbaa4ee67135ac6ff8ef35fa98a93e0f08af494 ]

when RTE_ENABLE_ASSERT is defined test_mbuf application is
failing because we are trying to attach extbuf to a cloned
buffer to which external mbuf is already attached.
To make test_mbuf pass CI we have updated ol_flags.
This patch fixes the same.

Fixes: 7b295dc ("test/mbuf: add unit test cases")

Signed-off-by: Rakesh Kudurumalla <rkudurumalla@marvell.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>

app/test/test_mbuf.c

@@ -2345,16 +2345,13 @@ test_pktmbuf_ext_shinfo_init_helper(struct rte_mempool *pktmbuf_pool)
 		GOTO_FAIL("%s: External buffer is not attached to mbuf\n",
 				__func__);
 
-	/* allocate one more mbuf */
+	/* allocate one more mbuf, it is attached to the same external buffer */
 	clone = rte_pktmbuf_clone(m, pktmbuf_pool);
 	if (clone == NULL)
 		GOTO_FAIL("%s: mbuf clone allocation failed!\n", __func__);
 	if (rte_pktmbuf_pkt_len(clone) != 0)
 		GOTO_FAIL("%s: Bad packet length\n", __func__);
 
-	/* attach the same external buffer to the cloned mbuf */
-	rte_pktmbuf_attach_extbuf(clone, ext_buf_addr, buf_iova, buf_len,
-			ret_shinfo);
 	if (clone->ol_flags != RTE_MBUF_F_EXTERNAL)
 		GOTO_FAIL("%s: External buffer is not attached to mbuf\n",
 				__func__);