[dpdk-dev] [PATCH v4 22/23] rte_ip.h: cast return checksum size to uint16

Andy Green andy at warmcat.com
Mon May 14 07:11:18 CEST 2018


In file included from ./dpdk/worker.c:94:
/projects/lagopus/src/dpdk/build/include/rte_ip.h:
332:9: warning: conversion from 'uint32_t'
{aka 'unsigned int'} to 'uint16_t' {aka 'short
unsigned int'} may change value [-Wconversion]
  return cksum;
         ^~~~~

/projects/lagopus/src/dpdk/build/include/rte_ip.h:
In function 'rte_ipv6_udptcp_cksum':
/projects/lagopus/src/dpdk/build/include/rte_ip.h:421:9:
warning: conversion from 'uint32_t' {aka 'unsigned int'}
to 'uint16_t' {aka 'short unsigned int'} may change
value [-Wconversion]
  return cksum;
         ^~~~~


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 88dfbaa9a..c46398548 100644
--- a/lib/librte_net/rte_ip.h
+++ b/lib/librte_net/rte_ip.h
@@ -329,7 +329,7 @@ rte_ipv4_udptcp_cksum(const struct ipv4_hdr *ipv4_hdr, const void *l4_hdr)
 	if (cksum == 0)
 		cksum = 0xffff;
 
-	return cksum;
+	return (uint16_t)cksum;
 }
 
 /**
@@ -418,7 +418,7 @@ rte_ipv6_udptcp_cksum(const struct ipv6_hdr *ipv6_hdr, const void *l4_hdr)
 	if (cksum == 0)
 		cksum = 0xffff;
 
-	return cksum;
+	return (uint16_t)cksum;
 }
 
 #ifdef __cplusplus



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