Re: [PATCH 1/2] net: ethernet: mvneta: Do not error out in non serdes modes

[Russell King - ARM Linux admin]

On Wed, Jun 24, 2020 at 09:00:44AM +0200, Sascha Hauer wrote:
> In mvneta_config_interface() the RGMII modes are catched by the default
> case which is an error return. The RGMII modes are valid modes for the
> driver, so instead of returning an error add a break statement to return
> successfully.
> 
> This avoids this warning for non comphy SoCs which use RGMII, like
> SolidRun Clearfog:
> 
> WARNING: CPU: 0 PID: 268 at drivers/net/ethernet/marvell/mvneta.c:3512 mvneta_start_dev+0x220/0x23c
> 
> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>

Fixes: b4748553f53f ("net: ethernet: mvneta: Fix Serdes configuration for SoCs without comphy")
Reviewed-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>

Thanks.

> ---
>  drivers/net/ethernet/marvell/mvneta.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
> index af60001728481..c4552f868157c 100644
> --- a/drivers/net/ethernet/marvell/mvneta.c
> +++ b/drivers/net/ethernet/marvell/mvneta.c
> @@ -3571,7 +3571,7 @@ static int mvneta_config_interface(struct mvneta_port *pp,
>  				    MVNETA_HSGMII_SERDES_PROTO);
>  			break;
>  		default:
> -			return -EINVAL;
> +			break;
>  		}
>  	}
>  
> -- 
> 2.27.0
> 
> 

-- 
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