[dpdk-dev] [PATCH] mempool: fix check flags

Ferruh Yigit ferruh.yigit at intel.com
Thu Sep 8 16:44:44 CEST 2016


On 9/8/2016 3:28 PM, Hiroyuki Mikita wrote:
> fix check flags in case of single producer and single consumer
> 
> Fixes: 449c49b9 ("mempool: support handler operations")
> 
> Signed-off-by: Hiroyuki Mikita <h.mikita89 at gmail.com>
> ---
>  lib/librte_mempool/rte_mempool.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
> index 2e28e2e..61bd63c 100644
> --- a/lib/librte_mempool/rte_mempool.c
> +++ b/lib/librte_mempool/rte_mempool.c
> @@ -879,7 +879,7 @@ rte_mempool_create(const char *name, unsigned n, unsigned elt_size,
>  	 * Since we have 4 combinations of the SP/SC/MP/MC examine the flags to
>  	 * set the correct index into the table of ops structs.
>  	 */
> -	if (flags & (MEMPOOL_F_SP_PUT | MEMPOOL_F_SC_GET))
> +	if ((flags & MEMPOOL_F_SP_PUT) & (flags & MEMPOOL_F_SC_GET))

Isn't this always false?

What about:
if ((flags & MEMPOOL_F_SP_PUT) && (flags & MEMPOOL_F_SC_GET))

>  		rte_mempool_set_ops_byname(mp, "ring_sp_sc", NULL);
>  	else if (flags & MEMPOOL_F_SP_PUT)
>  		rte_mempool_set_ops_byname(mp, "ring_sp_mc", NULL);
> 



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