linux-kernel - Re: [PATCH net-next 5/8] net: dsa: felix: remove confusing/incorrect comment from felix

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Date:   Wed, 12 Apr 2023 14:18:56 -0700
From:   Jacob Keller <jacob.e.keller@...el.com>
To:     Vladimir Oltean <vladimir.oltean@....com>, <netdev@...r.kernel.org>
CC:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Claudiu Manoil" <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        <UNGLinuxDriver@...rochip.com>,
        Colin Foster <colin.foster@...advantage.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 5/8] net: dsa: felix: remove confusing/incorrect
 comment from felix_setup()



On 4/12/2023 5:47 AM, Vladimir Oltean wrote:
> That comment was written prior to knowing that what I was actually
> seeing was a manifestation of the bug fixed in commit b4024c9e5c57
> ("felix: Fix initialization of ioremap resources").
> 
> There isn't any particular reason now why the hardware initialization is
> done in felix_setup(), so just delete that comment to avoid spreading
> misinformation.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> ---
>  drivers/net/dsa/ocelot/felix.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
> index 6dcebcfd71e7..80861ac090ae 100644
> --- a/drivers/net/dsa/ocelot/felix.c
> +++ b/drivers/net/dsa/ocelot/felix.c
> @@ -1550,11 +1550,6 @@ static int felix_connect_tag_protocol(struct dsa_switch *ds,
>  	}
>  }
>  
> -/* Hardware initialization done here so that we can allocate structures with
> - * devm without fear of dsa_register_switch returning -EPROBE_DEFER and causing
> - * us to allocate structures twice (leak memory) and map PCI memory twice
> - * (which will not work).
> - */
>  static int felix_setup(struct dsa_switch *ds)
>  {
>  	struct ocelot *ocelot = ds->priv;

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>