mbuf: silence warning on pointer arithmetic

[dpdk.git] / lib / librte_mbuf / rte_mbuf.h

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index eed481e..70da797 100644 (file)
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -347,13 +347,7 @@ 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)
 {
-       struct rte_mbuf *md;
-
-       /* mi->buf_addr and mi->priv_size correspond to buffer and
-        * private size of the direct mbuf */
-       md = (struct rte_mbuf *)((char *)mi->buf_addr - sizeof(*mi) -
-               mi->priv_size);
-       return md;
+       return RTE_PTR_SUB(mi->buf_addr, sizeof(*mi) + mi->priv_size);
 }
 
 /**