netdev - Re: [PATCH net-next] net/sched: cls_flower: validate ct

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Date:   Mon, 22 Feb 2021 09:12:39 -0300
From:   Marcelo Ricardo Leitner <mleitner@...hat.com>
To:     wenxu@...oud.cn
Cc:     kuba@...nel.org, mleitner@...hat.com, netdev@...r.kernel.org,
        jhs@...atatu.com, Oz Shlomo <ozsh@...dia.com>,
        Paul Blakey <paulb@...dia.com>
Subject: Re: [PATCH net-next] net/sched: cls_flower: validate ct_state for
 invalid and reply flags

On Mon, Feb 22, 2021 at 02:09:50PM +0800, wenxu@...oud.cn wrote:
> From: wenxu <wenxu@...oud.cn>
> 
> Add invalid and reply flags validate in the fl_validate_ct_state.

This makes the checking complete if compared to ovs'
validate_ct_state().

...
> +	if (state & TCA_FLOWER_KEY_CT_FLAGS_INVALID &&
> +	    state & ~(TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
> +		      TCA_FLOWER_KEY_CT_FLAGS_INVALID)) {
> +		NL_SET_ERR_MSG_ATTR(extack, tb,
> +				    "when inv is set, only trk also be set");

The message is missing the verb:
+				    "when inv is set, only trk may also be set");

Other than this, LGTM.

> +		return -EINVAL;
> +	}
> +
> +	if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
> +	    state & TCA_FLOWER_KEY_CT_FLAGS_REPLY) {
> +		NL_SET_ERR_MSG_ATTR(extack, tb,
> +				    "new and rpl are mutually exclusive");
> +		return -EINVAL;
> +	}
> +
>  	return 0;
>  }
>  
> -- 
> 1.8.3.1
>