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Message-ID: <20240607135041.4lo36yeybwa2tkue@skbuf>
Date: Fri, 7 Jun 2024 16:50:41 +0300
From: Vladimir Oltean <olteanv@...il.com>
To: Martin Schiller <ms@....tdt.de>
Cc: martin.blumenstingl@...glemail.com, hauke@...ke-m.de, andrew@...n.ch,
	f.fainelli@...il.com, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 10/13] net: dsa: lantiq_gswip: Fix error message
 in gswip_add_single_port_br()

On Fri, Jun 07, 2024 at 03:34:13PM +0200, Martin Schiller wrote:
> On 2024-06-07 13:27, Vladimir Oltean wrote:
> > Isn't even the original condition (port >= max_ports) dead code? Why not
> > remove the condition altogether?
> 
> I also agree here if we can be sure, that .port_enable, .port_bridge_join and
> .port_bridge_leave are only called for "valid" (<= max_ports) ports.

dsa_switch_parse_ports_of() has:

		if (reg >= ds->num_ports) {
			dev_err(ds->dev, "port %pOF index %u exceeds num_ports (%u)\n",
				port, reg, ds->num_ports);
			of_node_put(port);
			err = -EINVAL;
			goto out_put_node;
		}

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