On Mon, Mar 15, 2021 at 02:43:23PM +0000, 'w00385741 wrote:
> From: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
>
> The return value 'rc' maybe overwrite to 0 in the flow_action_for_each
> loop, the error code from the offload not support error handling will
> not set. This commit fix it to return -EOPNOTSUPP.
>
> Fixes: 6a56e19902af ("flow_offload: reject configuration of packet-per-second policing in offload drivers")
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
> ---
> drivers/net/dsa/sja1105/sja1105_flower.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/dsa/sja1105/sja1105_flower.c b/drivers/net/dsa/sja1105/sja1105_flower.c
> index f78b767f86ee..973761132fc3 100644
> --- a/drivers/net/dsa/sja1105/sja1105_flower.c
> +++ b/drivers/net/dsa/sja1105/sja1105_flower.c
> @@ -317,14 +317,13 @@ int sja1105_cls_flower_add(struct dsa_switch *ds, int port,
> if (rc)
> return rc;
>
> - rc = -EOPNOTSUPP;
> -
> flow_action_for_each(i, act, &rule->action) {
> switch (act->id) {
> case FLOW_ACTION_POLICE:
> if (act->police.rate_pkt_ps) {
> NL_SET_ERR_MSG_MOD(extack,
> "QoS offload not support packets per second");
> + rc = -EOPNOTSUPP;
> goto out;
Yep. The goto out is a do nothing goto and "forgot the error code" is
the traditional bug introduced by do nothing gotos.
Reviewed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
regards,
dan carpenter
