mbuf: fix type of private size in detach

GCC 8.1 warned:

In function 'rte_pktmbuf_detach':
rte_mbuf.h:1583:17: warning: conversion from 'uint32_t'
{aka 'unsigned int'} to 'uint16_t' {aka 'short unsigned int'}
may change value [-Wconversion]
  m->priv_size = priv_size;
                 ^~~~~~~~~

The temp priv_size is declared as a uint32_t.  But it
only deals in uint16_t.  m->priv_size is a uint16_t.
Change it to a uint16_t.

Fixes: 355e6735b3 ("mbuf: fix cloning with private mbuf data")
Cc: stable@dpdk.org
Signed-off-by: Andy Green <andy@warmcat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 28fd4ad..76e37a2 100644 (file)
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -1571,7 +1571,8 @@ __rte_pktmbuf_free_direct(struct rte_mbuf *m)
 static inline void rte_pktmbuf_detach(struct rte_mbuf *m)
 {
        struct rte_mempool *mp = m->pool;
-       uint32_t mbuf_size, buf_len, priv_size;
+       uint32_t mbuf_size, buf_len;
+       uint16_t priv_size;
 
        if (RTE_MBUF_HAS_EXTBUF(m))
                __rte_pktmbuf_free_extbuf(m);