netdev - Re: [PATCH net-next v5 12/14] net/smc: Add SMC-D Linkgroup diagnostic support

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Date:   Wed, 25 Nov 2020 16:33:17 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Karsten Graul <kgraul@...ux.ibm.com>
Cc:     David Miller <davem@...emloft.net>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Stefan Raspl <raspl@...ux.ibm.com>, netdev@...r.kernel.org,
        linux-s390@...r.kernel.org
Subject: Re: [PATCH net-next v5 12/14] net/smc: Add SMC-D Linkgroup
 diagnostic support

On Tue, 24 Nov 2020 18:50:45 +0100 Karsten Graul wrote:
> +static int smc_nl_fill_smcd_lgr(struct smc_link_group *lgr,
> +				struct sk_buff *skb,
> +				struct netlink_callback *cb)
> +{
> +	char smc_host[SMC_MAX_HOSTNAME_LEN + 1];
> +	char smc_pnet[SMC_MAX_PNETID_LEN + 1];
> +	char smc_eid[SMC_MAX_EID_LEN + 1];
> +	struct nlattr *v2_attrs;
> +	struct nlattr *attrs;
> +	void *nlh;
> +
> +	nlh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
> +			  &smc_gen_nl_family, NLM_F_MULTI,
> +			  SMC_NETLINK_GET_LGR_SMCD);
> +	if (!nlh)
> +		return -EMSGSIZE;

In the previous patched you had a goto here. I prefer direct return,
but either way - please be consistent.