> From: David Marchand [mailto:david.march...@redhat.com]
> Sent: Tuesday, 21 June 2022 16.13
> 
> ALIGNMENT_MASK is only used internally.
> Besides it lacks a DPDK-related prefix.
> Hide it from external eyes.
> 
> Reported-by: Morten Brørup <m...@smartsharesystems.com>
> Signed-off-by: David Marchand <david.march...@redhat.com>
> ---
>  lib/eal/x86/include/rte_memcpy.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/lib/eal/x86/include/rte_memcpy.h
> b/lib/eal/x86/include/rte_memcpy.h
> index 18aa4e43a7..b678b5c942 100644
> --- a/lib/eal/x86/include/rte_memcpy.h
> +++ b/lib/eal/x86/include/rte_memcpy.h
> @@ -851,6 +851,8 @@ rte_memcpy(void *dst, const void *src, size_t n)
>               return rte_memcpy_generic(dst, src, n);
>  }
> 
> +#undef ALIGNMENT_MASK
> +
>  #if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 100000)
>  #pragma GCC diagnostic pop
>  #endif
> --
> 2.36.1
> 

You could consider also giving another name with a lower risk of collision.
However, I think the risk is very low, since it can only collide with other 
headers being included before this header file, so this suffices.

Reviewed-by: Morten Brørup <m...@smartsharesystems.com>

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