From: Andy Green <andy@warmcat.com>
Date: Thu, 17 May 2018 13:50:22 +0000 (+0800)
Subject: mbuf: explicit cast of size on detach
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c779ebdca0e4765158bd1eaa6f65c9d714605fae;p=dpdk.git

mbuf: explicit cast of size on detach

GCC 8.1 warned:

In function 'rte_pktmbuf_detach':
rte_mbuf.h:1580:14: warning: conversion from 'long unsigned int'
to 'uint32_t' {aka 'unsigned int'} may change value [-Wconversion]
  mbuf_size = sizeof(struct rte_mbuf) + priv_size;
              ^~~~~~

Fixes: 355e6735b335 ("mbuf: fix cloning with private mbuf data")
Cc: stable@dpdk.org

Signed-off-by: Andy Green <andy@warmcat.com>
---

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index ae0fa4d7cd..28fd4ad52f 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -1579,7 +1579,7 @@ static inline void rte_pktmbuf_detach(struct rte_mbuf *m)
 		__rte_pktmbuf_free_direct(m);
 
 	priv_size = rte_pktmbuf_priv_size(mp);
-	mbuf_size = sizeof(struct rte_mbuf) + priv_size;
+	mbuf_size = (uint32_t)(sizeof(struct rte_mbuf) + priv_size);
 	buf_len = rte_pktmbuf_data_room_size(mp);
 
 	m->priv_size = priv_size;