netdev - Re: [PATCH net-next V4 08/14] devlink: Allow rate node parents from other devlinks

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Message-ID: <20251127200928.65ce7349@kernel.org>
Date: Thu, 27 Nov 2025 20:09:28 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Tariq Toukan <tariqt@...dia.com>
Cc: Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
 Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Donald Hunter <donald.hunter@...il.com>, Jiri Pirko
 <jiri@...nulli.us>, Jonathan Corbet <corbet@....net>, Saeed Mahameed
 <saeedm@...dia.com>, "Leon Romanovsky" <leon@...nel.org>, Mark Bloch
 <mbloch@...dia.com>, <netdev@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
 <linux-rdma@...r.kernel.org>, Gal Pressman <gal@...dia.com>, Moshe Shemesh
 <moshe@...dia.com>, Carolina Jubran <cjubran@...dia.com>, Cosmin Ratiu
 <cratiu@...dia.com>, Jiri Pirko <jiri@...dia.com>, Randy Dunlap
 <rdunlap@...radead.org>
Subject: Re: [PATCH net-next V4 08/14] devlink: Allow rate node parents from
 other devlinks

On Tue, 25 Nov 2025 22:06:07 +0200 Tariq Toukan wrote:
> @@ -646,6 +706,13 @@ int devlink_nl_rate_set_doit(struct sk_buff *skb, struct genl_info *info)
>  		goto unlock;
>  	}
>  
> +	if (info->user_ptr[1] && info->user_ptr[1] != devlink &&
> +	    !ops->supported_cross_device_rate_nodes) {
> +		NL_SET_ERR_MSG(info->extack,
> +			       "Cross-device rate parents aren't supported");
> +		return -EOPNOTSUPP;

err = ...
goto unlock

> +	}
> +
>  	err = devlink_nl_rate_set(devlink_rate, ops, info);
>  
>  	if (!err)
-- 
pw-bot: cr