[PATCH v5 05/11] net/nfp: use rte_pktmbuf_mtod_offset

[Stephen Hemminger]

Replace explicit packet offset computations with rte_pktmbuf_mtod_offset().

Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
 drivers/net/nfp/flower/nfp_flower_cmsg.h | 3 ++-
 drivers/net/nfp/flower/nfp_flower_ctrl.c | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/nfp/flower/nfp_flower_cmsg.h 
b/drivers/net/nfp/flower/nfp_flower_cmsg.h
index f643d54d39a4..787a38dc9aa0 100644
--- a/drivers/net/nfp/flower/nfp_flower_cmsg.h
+++ b/drivers/net/nfp/flower/nfp_flower_cmsg.h
@@ -381,7 +381,8 @@ enum nfp_flower_cmsg_port_vnic_type {
 static inline char*
 nfp_flower_cmsg_get_data(struct rte_mbuf *m)
 {
-       return rte_pktmbuf_mtod(m, char *) + 4 + 4 + NFP_FLOWER_CMSG_HLEN;
+       return rte_pktmbuf_mtod_offset(m, char *,
+                                      4 + 4 + NFP_FLOWER_CMSG_HLEN);
 }
 
 /*
diff --git a/drivers/net/nfp/flower/nfp_flower_ctrl.c 
b/drivers/net/nfp/flower/nfp_flower_ctrl.c
index 4cb2c2f99e04..18823a97887d 100644
--- a/drivers/net/nfp/flower/nfp_flower_ctrl.c
+++ b/drivers/net/nfp/flower/nfp_flower_ctrl.c
@@ -389,7 +389,7 @@ nfp_flower_cmsg_rx_stats(struct nfp_flow_priv *flow_priv,
        uint32_t ctx_id;
        struct nfp_flower_stats_frame *stats;
 
-       msg = rte_pktmbuf_mtod(mbuf, char *) + NFP_FLOWER_CMSG_HLEN;
+       msg = rte_pktmbuf_mtod_offset(mbuf, char *, NFP_FLOWER_CMSG_HLEN);
        msg_len = mbuf->data_len - NFP_FLOWER_CMSG_HLEN;
        count = msg_len / sizeof(struct nfp_flower_stats_frame);
 
@@ -412,7 +412,7 @@ nfp_flower_cmsg_rx_qos_stats(struct nfp_mtr_priv *mtr_priv,
        struct nfp_mtr *mtr;
        struct nfp_mtr_stats_reply *mtr_stats;
 
-       msg = rte_pktmbuf_mtod(mbuf, char *) + NFP_FLOWER_CMSG_HLEN;
+       msg = rte_pktmbuf_mtod_offset(mbuf, char *, NFP_FLOWER_CMSG_HLEN);
 
        mtr_stats = (struct nfp_mtr_stats_reply *)msg;
        profile_id = rte_be_to_cpu_32(mtr_stats->head.profile_id);
-- 
2.39.2