Re: [dpdk-dev] [PATCH v2 3/4] cryptodev: fix the clang compiling issue

[Jerin Jacob <jerin.jacob@caviumnetworks.com>]

-----Original Message-----
> Date: Tue, 15 May 2018 05:23:46 -0400
> From: Gavin Hu <gavin.hu@arm.com>
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v2 3/4] cryptodev: fix the clang compiling issue
> X-Mailer: git-send-email 2.1.4
> 
> ~/dpdk/lib/librte_eventdev/rte_event_crypto_adapter.c:530:49: error:
> 'rte_memcpy' call operates on objects of type 'struct rte_event'
> while the size is based on a different type
>       'struct rte_event *' [-Werror,-Wsizeof-pointer-memaccess]
>                 rte_memcpy(ev, &m_data->response_info, sizeof(ev));
> ~/arm_repo/dpdk/lib/librte_eventdev/rte_event_crypto_adapter.c:530:49:
> note: did you mean to dereference the argument to 'sizeof' (and multiply
> it by the number of elements)?
>       rte_memcpy(ev, &m_data->response_info, sizeof(ev));
> 
> Signed-off-by: Gavin Hu <gavin.hu@arm.com>
> Reviewed-by: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
> ---
>  lib/librte_eventdev/rte_event_crypto_adapter.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_eventdev/rte_event_crypto_adapter.c b/lib/librte_eventdev/rte_event_crypto_adapter.c
> index 831f842..0f34fe0 100644
> --- a/lib/librte_eventdev/rte_event_crypto_adapter.c
> +++ b/lib/librte_eventdev/rte_event_crypto_adapter.c
> @@ -527,7 +527,8 @@ eca_ops_enqueue_burst(struct rte_event_crypto_adapter *adapter,
>  			continue;
>  		}
>  
> -		rte_memcpy(ev, &m_data->response_info, sizeof(ev));
> +		rte_memcpy(ev, &m_data->response_info,
> +			sizeof(struct rte_event));

Following could be a shorter replacement.

rte_memcpy(ev, &m_data->response_info, sizeof(*ev));

>  		ev->event_ptr = ops[i];
>  		ev->event_type = RTE_EVENT_TYPE_CRYPTODEV;
>  		if (adapter->implicit_release_disabled)
> -- 
> 2.1.4
>