linux-kernel - Re: [PATCH V5 net-next 06/11] net: hibmcge: Implement .ndo_start

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Message-ID: <20240828184120.07102a2f@kernel.org>
Date: Wed, 28 Aug 2024 18:41:20 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jijie Shao <shaojijie@...wei.com>
Cc: <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
 <shenjian15@...wei.com>, <wangpeiyang1@...wei.com>,
 <liuyonglong@...wei.com>, <chenhao418@...wei.com>,
 <sudongming1@...wei.com>, <xujunsheng@...wei.com>,
 <shiyongbang@...wei.com>, <libaihan@...wei.com>, <andrew@...n.ch>,
 <jdamato@...tly.com>, <horms@...nel.org>, <jonathan.cameron@...wei.com>,
 <shameerali.kolothum.thodi@...wei.com>, <salil.mehta@...wei.com>,
 <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V5 net-next 06/11] net: hibmcge: Implement
 .ndo_start_xmit function

On Tue, 27 Aug 2024 21:14:50 +0800 Jijie Shao wrote:
> @@ -111,6 +135,14 @@ static int hbg_init(struct hbg_priv *priv)
>  	if (ret)
>  		return ret;
>  
> +	ret = hbg_txrx_init(priv);
> +	if (ret)
> +		return ret;

You allocate buffers on the probe path?
The queues and all the memory will be sitting allocated but unused if 
admin does ip link set dev $eth0 down?