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From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
Akhil Goyal <gakhil@marvell.com>, Fan Zhang <fanzhang.oss@gmail.com>
Subject: [PATCH v5 11/11] examples/l2fwd-crypto: use rte_pktmbuf_mtod_offset
Date: Fri, 7 Jul 2023 18:57:18 -0700
Message-Id: <20230708015718.75565-12-stephen@networkplumber.org>
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Replace explicit packet offset computations with rte_pktmbuf_mtod_offset().
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
examples/l2fwd-crypto/main.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index efe7eea2a768..19db0a280bf0 100644
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -410,8 +410,8 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
ipdata_offset = sizeof(struct rte_ether_hdr);
- ip_hdr = (struct rte_ipv4_hdr *)(rte_pktmbuf_mtod(m, char *) +
- ipdata_offset);
+ ip_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
+ ipdata_offset);
ipdata_offset += (ip_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK)
* RTE_IPV4_IHL_MULTIPLIER;
@@ -479,8 +479,8 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
op->sym->auth.digest.data = (uint8_t *)rte_pktmbuf_append(m,
cparams->digest_length);
} else {
- op->sym->auth.digest.data = rte_pktmbuf_mtod(m,
- uint8_t *) + ipdata_offset + data_len;
+ op->sym->auth.digest.data = rte_pktmbuf_mtod_offset(m,
+ uint8_t *, ipdata_offset + data_len);
}
op->sym->auth.digest.phys_addr = rte_pktmbuf_iova_offset(m,
@@ -540,8 +540,8 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
op->sym->aead.digest.data = (uint8_t *)rte_pktmbuf_append(m,
cparams->digest_length);
} else {
- op->sym->aead.digest.data = rte_pktmbuf_mtod(m,
- uint8_t *) + ipdata_offset + data_len;
+ op->sym->aead.digest.data = rte_pktmbuf_mtod_offset(m,
+ uint8_t *, ipdata_offset + data_len);
}
op->sym->aead.digest.phys_addr = rte_pktmbuf_iova_offset(m,
@@ -631,7 +631,7 @@ l2fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
struct rte_ipv4_hdr *ip_hdr;
uint32_t ipdata_offset = sizeof(struct rte_ether_hdr);
- ip_hdr = (struct rte_ipv4_hdr *)(rte_pktmbuf_mtod(m, char *) +
+ ip_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
ipdata_offset);
dst_port = l2fwd_dst_ports[portid];
--
2.39.2