[dpdk-dev] [PATCH v5 18/21] rte_mbuf.h: explicit cast for size type to uint32

Andy Green andy at warmcat.com
Thu May 17 15:50:22 CEST 2018


/projects/lagopus/src/dpdk/build/include/rte_mbuf.h:
In function 'rte_pktmbuf_detach':
/projects/lagopus/src/dpdk/build/include/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;
              ^~~~~~

Signed-off-by: Andy Green <andy at warmcat.com>
---
 lib/librte_mbuf/rte_mbuf.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 0580ec8a0..7849192c6 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -1577,7 +1577,7 @@ 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;



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