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Date:   Mon, 27 Feb 2023 10:52:52 +0000
From:   Lee Jones <lee@...nel.org>
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, "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, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Colin Foster <colin.foster@...advantage.com>,
        Maksim Kiselev <bigunclemax@...il.com>,
        Maxim Kochetkov <fido_max@...ox.ru>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH net 3/3] net: mscc: ocelot: fix duplicate driver name
 error

On Fri, 24 Feb 2023, Vladimir Oltean wrote:

> When compiling a kernel which has both CONFIG_NET_DSA_MSCC_OCELOT_EXT
> and CONFIG_MSCC_OCELOT_SWITCH enabled, the following error message will
> be printed:
> 
> [    5.266588] Error: Driver 'ocelot-switch' is already registered, aborting...
> 
> Rename the ocelot_ext.c driver to "ocelot-ext-switch" to avoid the name
> duplication, and update the mfd_cell entry for its resources.
> 
> Fixes: 3d7316ac81ac ("net: dsa: ocelot: add external ocelot switch control")
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> ---
>  drivers/mfd/ocelot-core.c           | 2 +-

Acked-by: Lee Jones <lee@...nel.org>

>  drivers/net/dsa/ocelot/ocelot_ext.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mfd/ocelot-core.c b/drivers/mfd/ocelot-core.c
> index b0ff05c1759f..e1772ff00cad 100644
> --- a/drivers/mfd/ocelot-core.c
> +++ b/drivers/mfd/ocelot-core.c
> @@ -177,7 +177,7 @@ static const struct mfd_cell vsc7512_devs[] = {
>  		.num_resources = ARRAY_SIZE(vsc7512_miim1_resources),
>  		.resources = vsc7512_miim1_resources,
>  	}, {
> -		.name = "ocelot-switch",
> +		.name = "ocelot-ext-switch",
>  		.of_compatible = "mscc,vsc7512-switch",
>  		.num_resources = ARRAY_SIZE(vsc7512_switch_resources),
>  		.resources = vsc7512_switch_resources,
> diff --git a/drivers/net/dsa/ocelot/ocelot_ext.c b/drivers/net/dsa/ocelot/ocelot_ext.c
> index 14efa6387bd7..52b41db63a28 100644
> --- a/drivers/net/dsa/ocelot/ocelot_ext.c
> +++ b/drivers/net/dsa/ocelot/ocelot_ext.c
> @@ -149,7 +149,7 @@ MODULE_DEVICE_TABLE(of, ocelot_ext_switch_of_match);
>  
>  static struct platform_driver ocelot_ext_switch_driver = {
>  	.driver = {
> -		.name = "ocelot-switch",
> +		.name = "ocelot-ext-switch",
>  		.of_match_table = of_match_ptr(ocelot_ext_switch_of_match),
>  	},
>  	.probe = ocelot_ext_probe,
> -- 
> 2.34.1
> 

-- 
Lee Jones [李琼斯]

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