[PATCH 2/2] lib/hash: avoid implicit conversion to 64 bit number

Medvedkin, Vladimir vladimir.medvedkin at intel.com
Wed Jan 22 17:15:17 CET 2025


Acked-by: Vladimir Medvedkin <vladimir.medvedkin at intel.com>

On 28/11/2024 01:53, Andre Muezerie wrote:
> MSVC issues the warnings below:
>
> 1) ../lib/hash/rte_thash_gf2_poly_math.c(128): warning C4334: '<<':
>      result of 32-bit shift implicitly converted to 64 bits
>      (was 64-bit shift intended?)
>
> The code would be better off by using 64 bit numbers to begin with.
> That eliminates the need for a conversion to 64 bits later.
>
> 2) ../lib/hash/rte_thash.c(568): warning C4334: '<<':
>      result of 32-bit shift implicitly converted to 64 bits
>      (was 64-bit shift intended?)
>
> 1ULL should be used as the result of the bit shift gets multiplied
> by sizeof(uint32_t).
>
> Signed-off-by: Andre Muezerie <andremue at linux.microsoft.com>
> ---
>   lib/hash/rte_thash.c               | 2 +-
>   lib/hash/rte_thash_gf2_poly_math.c | 6 +++---
>   2 files changed, 4 insertions(+), 4 deletions(-)
>
<snip>

-- 
Regards,
Vladimir



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