[dpdk-dev] [PATCH v5 15/21] rte_ip.h: cast type decided by sizeof to uint32
Andy Green
andy at warmcat.com
Thu May 17 15:50:07 CEST 2018
/projects/lagopus/src/dpdk/build/include/rte_ip.h:
In function 'rte_ipv4_udptcp_cksum':
/projects/lagopus/src/dpdk/build/include/rte_byteorder.h:
51:24: warning: conversion from 'long unsigned int' to
'uint32_t' {aka 'unsigned int'} may change value
[-Wconversion]
#define rte_bswap16(x) ((uint16_t)
(__builtin_constant_p(x) ? \
^
/projects/lagopus/src/dpdk/build/include/rte_byteorder.h:
85:29: note: in expansion of macro 'rte_bswap16'
#define rte_be_to_cpu_16(x) rte_bswap16(x)
^~~~~~~~~~~
/projects/lagopus/src/dpdk/build/include/rte_ip.h:321:11:
note: in expansion of macro 'rte_be_to_cpu_16'
l4_len = rte_be_to_cpu_16(ipv4_hdr->total_length) -
^~~~~~~~~~~~~~~~
Signed-off-by: Andy Green <andy at warmcat.com>
---
lib/librte_net/rte_ip.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/librte_net/rte_ip.h b/lib/librte_net/rte_ip.h
index 8689e9113..88dfbaa9a 100644
--- a/lib/librte_net/rte_ip.h
+++ b/lib/librte_net/rte_ip.h
@@ -318,8 +318,8 @@ rte_ipv4_udptcp_cksum(const struct ipv4_hdr *ipv4_hdr, const void *l4_hdr)
uint32_t cksum;
uint32_t l4_len;
- l4_len = rte_be_to_cpu_16(ipv4_hdr->total_length) -
- sizeof(struct ipv4_hdr);
+ l4_len = (uint32_t)(rte_be_to_cpu_16(ipv4_hdr->total_length) -
+ sizeof(struct ipv4_hdr));
cksum = rte_raw_cksum(l4_hdr, l4_len);
cksum += rte_ipv4_phdr_cksum(ipv4_hdr, 0);
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