From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de
Subject: Re: [PATCH 1/2] net: ethernet: mvneta: Do not error out in non serdes modes
Date: Wed, 24 Jun 2020 10:53:29 +0100 [thread overview]
Message-ID: <20200624095329.GY1551@shell.armlinux.org.uk> (raw)
In-Reply-To: <20200624070045.8878-1-s.hauer@pengutronix.de>
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@pengutronix.de>
Fixes: b4748553f53f ("net: ethernet: mvneta: Fix Serdes configuration for SoCs without comphy")
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
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
>
>
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
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next prev parent reply other threads:[~2020-06-24 9:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-24 7:00 [PATCH 1/2] net: ethernet: mvneta: Do not error out in non serdes modes Sascha Hauer
2020-06-24 7:00 ` [PATCH 2/2] net: ethernet: mvneta: Add back interface mode validation Sascha Hauer
2020-06-24 9:55 ` Russell King - ARM Linux admin
2020-06-24 21:48 ` David Miller
2020-06-24 9:53 ` Russell King - ARM Linux admin [this message]
2020-06-24 21:48 ` [PATCH 1/2] net: ethernet: mvneta: Do not error out in non serdes modes David Miller
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