netdev - Re: [PATCH net-next v6 10/17] net: pse-pd: Add support for PSE PIs

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Message-ID: <20240328144337.4456e596@kmaincent-XPS-13-7390>
Date: Thu, 28 Mar 2024 14:43:37 +0100
From: Kory Maincent <kory.maincent@...tlin.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
 <pabeni@...hat.com>, Jonathan Corbet <corbet@....net>, Luis Chamberlain
 <mcgrof@...nel.org>, Russ Weight <russ.weight@...ux.dev>, Greg
 Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki"
 <rafael@...nel.org>, Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
 Oleksij Rempel <o.rempel@...gutronix.de>, Mark Brown <broonie@...nel.org>,
 Frank Rowand <frowand.list@...il.com>, Heiner Kallweit
 <hkallweit1@...il.com>, Russell King <linux@...linux.org.uk>, Thomas
 Petazzoni <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
 devicetree@...r.kernel.org, Dent Project <dentproject@...uxfoundation.org>
Subject: Re: [PATCH net-next v6 10/17] net: pse-pd: Add support for PSE PIs

On Thu, 28 Mar 2024 13:24:00 +0100
Andrew Lunn <andrew@...n.ch> wrote:

> > +.. code-block::
> > +
> > +         +-------------+
> > +         |    PSE PI   |
> > + 8  -----+                             +-------------+
> > + 7  -----+                    Rail 1   |
> > + 6  -----+------+----------------------+
> > + 5  -----+      |                      |
> > + 4  -----+     /              Rail 2   |  PSE 1
> > + 3  -----+----?          +-------------+
> > + 2  -----+----+---------?              |
> > + 1  -----+---?                         +-------------+
> > +         |
> > +         +-------------+  
> 
> Is ? a standard markup character? I don't remember seeing it used like
> this before.

It seems the Documentation copy-pasted from Oleksij mail bring me few weird
characters.
I will fix it.

> > +static int of_load_single_pse_pi_pairset(struct device_node *node,
> > +					 struct pse_pi *pi,
> > +					 int pairset_num)
> > +{
> > +	struct device_node *pairset_np;
> > +	const char *name;
> > +	int ret;
> > +
> > +	ret = of_property_read_string_index(node, "pairset-names",
> > +					    pairset_num, &name);
> > +	if (ret)
> > +		return ret;
> > +
> > +	if (!strcmp(name, "alternative-a")) {
> > +		pi->pairset[pairset_num].pinout = ALTERNATIVE_A;
> > +	} else if (!strcmp(name, "alternative-b")) {
> > +		pi->pairset[pairset_num].pinout = ALTERNATIVE_B;
> > +	} else {
> > +		pr_err("pse: wrong pairset-names value %s\n", name);
> > +		return -EINVAL;  
> 
> Maybe include the node path in the error message? For a 24 port
> switch, it will help find a typo in one of the ports. I would do this
> for all error messages in this code.

Ok, I will.
Thanks for your review!

Regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com