[dpdk-dev] [PATCH v3 39/40] rte_hash_crc.h: explicit casts for truncation
Andy Green
andy at warmcat.com
Thu May 10 04:49:35 CEST 2018
/projects/lagopus/src/dpdk/build/include/rte_hash_crc.h:
In function 'crc32c_sse42_u64_mimic':
/projects/lagopus/src/dpdk/build/include/rte_hash_crc.h:402:40:
warning: conversion from 'uint64_t' {aka 'long unsigned int'}
to 'uint32_t' {aka 'unsigned int'} may change value [-Wconversion]
init_val = crc32c_sse42_u32(d.u32[0], init_val);
Signed-off-by: Andy Green <andy at warmcat.com>
---
lib/librte_hash/rte_hash_crc.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/librte_hash/rte_hash_crc.h b/lib/librte_hash/rte_hash_crc.h
index 5f5fb3db1..cf28031b3 100644
--- a/lib/librte_hash/rte_hash_crc.h
+++ b/lib/librte_hash/rte_hash_crc.h
@@ -398,9 +398,9 @@ crc32c_sse42_u64_mimic(uint64_t data, uint64_t init_val)
} d;
d.u64 = data;
- init_val = crc32c_sse42_u32(d.u32[0], init_val);
- init_val = crc32c_sse42_u32(d.u32[1], init_val);
- return init_val;
+ init_val = crc32c_sse42_u32(d.u32[0], (uint32_t)init_val);
+ init_val = crc32c_sse42_u32(d.u32[1], (uint32_t)init_val);
+ return (uint32_t)init_val;
}
#endif
@@ -412,7 +412,7 @@ crc32c_sse42_u64(uint64_t data, uint64_t init_val)
"crc32q %[data], %[init_val];"
: [init_val] "+r" (init_val)
: [data] "rm" (data));
- return init_val;
+ return (uint32_t)init_val;
}
#endif
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