[PATCH v5 1/2] lib/fib: remove warning about implicit 64-bit conversion

Morten Brørup mb at smartsharesystems.com
Sat May 17 12:07:42 CEST 2025


> From: Andre Muezerie [mailto:andremue at linux.microsoft.com]
> Sent: Friday, 16 May 2025 22.46
> 
> MSVC issues the warning below:
> 
> ../lib/fib/trie.c(341): warning C4334: '<<':
> result of 32-bit shift implicitly converted to 64 bits
> (was 64-bit shift intended?)
> 
> The fix is to cast (1) explicitly to uintptr_t since it is used
> in pointer arithmetic.
> 
> Signed-off-by: Andre Muezerie <andremue at linux.microsoft.com>
> ---
>  lib/fib/trie.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/fib/trie.c b/lib/fib/trie.c
> index 6c20057ac5..24a08b827d 100644
> --- a/lib/fib/trie.c
> +++ b/lib/fib/trie.c
> @@ -338,7 +338,7 @@ write_edge(struct rte_trie_tbl *dp, const uint8_t
> *ip_part, uint64_t next_hop,
>  		if (ret < 0)
>  			return ret;
>  		if (edge == LEDGE) {
> -			write_to_dp((uint8_t *)p + (1 << dp->nh_sz),
> +			write_to_dp(RTE_PTR_ADD(p, (uintptr_t)(1) << dp-
> >nh_sz),
>  				next_hop << 1, dp->nh_sz, UINT8_MAX -
> *ip_part);
>  		} else {
>  			write_to_dp(get_tbl_p_by_idx(dp->tbl8, tbl8_idx *
> --
> 2.49.0.vfs.0.3

Reviewed-by: Morten Brørup <mb at smartsharesystems.com>



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