netdev - Re: [PATCH net-next 01/13] octeontx2-af: npc: cn20k: Index management

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Message-ID: <aVyBoil8Yajd6v7e@rkannoth-OptiPlex-7090>
Date: Tue, 6 Jan 2026 08:59:38 +0530
From: Ratheesh Kannoth <rkannoth@...vell.com>
To: Andrew Lunn <andrew@...n.ch>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <sgoutham@...vell.com>, <davem@...emloft.net>, <edumazet@...gle.com>,
        <kuba@...nel.org>, <pabeni@...hat.com>, <andrew+netdev@...n.ch>,
        <sumang@...vell.com>
Subject: Re: [PATCH net-next 01/13] octeontx2-af: npc: cn20k: Index management

On 2026-01-05 at 20:45:12, Andrew Lunn (andrew@...n.ch) wrote:
> > +static void npc_subbank_srch_order_dbgfs_usage(void)
> > +{
> > +	pr_err("Usage: echo \"[0]=[8],[1]=7,[2]=30,...[31]=0\" > <debugfs>/subbank_srch_order\n");
>
> Isn't checkpatch giving you warnings about pr_err(). It wants you to
> use something like netdev_err()? This is a network driver, so you
> should have a netdev structure.
>
>        Andrew
There was no warning reported by checkpatch. NPC is a global TCAM resource.
This debugfs interface sets the order in which the subbanks (there are 32
subbanks in the NPC) are searched for a free slot. Would you prefer that I
create a dummy netdevice and pass it to this function?