netdev - Re: [RFC PATCH v2 net-next 5/6] net/smc: support max links per lgr negotiation in clc handshake

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Date: Mon, 7 Aug 2023 17:08:51 +0200
From: Simon Horman <horms@...nel.org>
To: Guangguan Wang <guangguan.wang@...ux.alibaba.com>
Cc: wenjia@...ux.ibm.com, jaka@...ux.ibm.com, kgraul@...ux.ibm.com,
	tonylu@...ux.alibaba.com, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, horms@...nel.org,
	alibuda@...ux.alibaba.com, guwen@...ux.alibaba.com,
	linux-s390@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 net-next 5/6] net/smc: support max links per lgr
 negotiation in clc handshake

On Mon, Aug 07, 2023 at 02:27:19PM +0800, Guangguan Wang wrote:

...

> diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c

...

> @@ -1414,6 +1420,9 @@ int smc_llc_srv_add_link(struct smc_link *link,
>  		goto out;
>  	}
>  
> +	if (lgr->type == SMC_LGR_SINGLE && lgr->max_links <= 1)

Hi Guangguan Wang,

The function will return rc.
Should it be set to an error value here?

Flagged by Smatch.

> +		goto out;
> +
>  	/* ignore client add link recommendation, start new flow */
>  	ini->vlan_id = lgr->vlan_id;
>  	if (lgr->smc_version == SMC_V2) {
> -- 
> 2.24.3 (Apple Git-128)
>