mbuf: fix explicit cast to build C++ app

When DPDK is being compiled in C++ project using g++ then
'invalid conversion from' error appears. Added explicit
typecast on function return to get rid of the error.

Fixes: 7755baae8378 ("mbuf: silence warning on pointer arithmetic")

Signed-off-by: Sergey Balabanov <balabanovsv@ecotelecom.ru>
Acked-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index c3b8c98..8c2db1b 100644 (file)
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -882,7 +882,7 @@ static inline uint16_t rte_pktmbuf_priv_size(struct rte_mempool *mp);
 static inline struct rte_mbuf *
 rte_mbuf_from_indirect(struct rte_mbuf *mi)
 {
-       return RTE_PTR_SUB(mi->buf_addr, sizeof(*mi) + mi->priv_size);
+       return (struct rte_mbuf *)RTE_PTR_SUB(mi->buf_addr, sizeof(*mi) + mi->priv_size);
 }
 
 /**