Re: [dpdk-dev] [PATCH] table: fix build error with gcc 8

[Stephen Hemminger <stephen@networkplumber.org>]

On Mon,  9 Apr 2018 13:49:48 +0100
Jasvinder Singh <jasvinder.singh@intel.com> wrote:

> Fix build error with gcc 8.0 due to cast between function types. 
> Fixes: 5a80bf0ae613 ("table: add cuckoo hash")
> 
> Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
> ---
>  lib/librte_table/rte_table_hash_cuckoo.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_table/rte_table_hash_cuckoo.c b/lib/librte_table/rte_table_hash_cuckoo.c
> index dcb4fe9..f7eae27 100644
> --- a/lib/librte_table/rte_table_hash_cuckoo.c
> +++ b/lib/librte_table/rte_table_hash_cuckoo.c
> @@ -103,11 +103,13 @@ rte_table_hash_cuckoo_create(void *params,
>  		return NULL;
>  	}
>  
> +	void *hash_func = p->f_hash;
> +
>  	/* Create cuckoo hash table */
>  	struct rte_hash_parameters hash_cuckoo_params = {
>  		.entries = p->n_keys,
>  		.key_len = p->key_size,
> -		.hash_func = (rte_hash_function)(p->f_hash),
> +		.hash_func = (rte_hash_function) hash_func,
>  		.hash_func_init_val = p->seed,
>  		.socket_id = socket_id,
>  		.name = p->name

This is just tricking the compiler into not complaining.
I would really rather see the two hash functions made the same.