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Date: Fri, 07 Jun 2024 15:53:58 +0200
From: Martin Schiller <ms@dev.tdt.de>
To: Vladimir Oltean <olteanv@gmail.com>
Cc: martin.blumenstingl@googlemail.com, hauke@hauke-m.de, andrew@lunn.ch,
 f.fainelli@gmail.com, davem@davemloft.net, edumazet@google.com,
 kuba@kernel.org, pabeni@redhat.com, robh@kernel.org, krzk+dt@kernel.org,
 conor+dt@kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 10/13] net: dsa: lantiq_gswip: Fix error message
 in gswip_add_single_port_br()
Organization: TDT AG
In-Reply-To: <20240607135041.4lo36yeybwa2tkue@skbuf>
References: <20240606085234.565551-1-ms@dev.tdt.de>
 <20240606085234.565551-11-ms@dev.tdt.de>
 <20240607112710.gbqyhnwisnjfnxrl@skbuf>
 <07b91d4a519c698bb80c0f50a0d00067@dev.tdt.de>
 <20240607135041.4lo36yeybwa2tkue@skbuf>
Message-ID: <cb945e096fe9a5d6c74057b20bb9c1c1@dev.tdt.de>
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On 2024-06-07 15:50, Vladimir Oltean wrote:
> 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;
> 		}

OK, so I will remove this check altogether.