From 553ff494cb4d7fa9539911d3bbb4d94de5f69f20 Mon Sep 17 00:00:00 2001 From: Andy Green Date: Thu, 17 May 2018 21:49:37 +0800 Subject: [PATCH] mbuf: explicit cast of headroom on reset GCC 8.1 warned: rte_common.h:384:2: warning: conversion from 'int' to 'uint16_t' {aka 'short unsigned int'} may change value [-Wconversion] __extension__ ({ \ ^~~~~~~~~~~~~ rte_mbuf.h:1204:16: note: in expansion of macro 'RTE_MIN' m->data_off = RTE_MIN(RTE_PKTMBUF_HEADROOM, (uint16_t)m->buf_len); RTE_PKTMBUF_HEADROOM is typ 128, so it doesn't make trouble. Fixes: 08b563ffb19d ("mbuf: replace data pointer by an offset") Cc: stable@dpdk.org Signed-off-by: Andy Green Acked-by: Bruce Richardson --- lib/librte_mbuf/rte_mbuf.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index b776a6f248..0a94e3ece7 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -1201,7 +1201,8 @@ rte_pktmbuf_priv_size(struct rte_mempool *mp) */ static inline void rte_pktmbuf_reset_headroom(struct rte_mbuf *m) { - m->data_off = RTE_MIN(RTE_PKTMBUF_HEADROOM, (uint16_t)m->buf_len); + m->data_off = (uint16_t)RTE_MIN((uint16_t)RTE_PKTMBUF_HEADROOM, + (uint16_t)m->buf_len); } /** -- 2.20.1