linux-kernel - Re: [PATCH net-next V2] net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers

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Message-ID: <ZTpHi5YYmiQKpy1e@shell.armlinux.org.uk>
Date:   Thu, 26 Oct 2023 12:03:39 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        linux-kernel@...r.kernel.org, andrew@...n.ch,
        Jose.Abreu@...opsys.com, fancer.lancer@...il.com,
        UNGLinuxDriver@...rochip.com
Subject: Re: [PATCH net-next V2] net: pcs: xpcs: Add 2500BASE-X case in get
 state for XPCS drivers

On Thu, Oct 26, 2023 at 03:46:42PM +0530, Raju Lakkaraju wrote:
> Add DW_2500BASEX case in xpcs_get_state( ) to update speed, duplex and pause
> 
> Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@...rochip.com>

Sorry for not doing a fuller review with the earlier iteration today.

Also, please note that on netdev, it's customary not to post more than
one version of a patch per day. Please see the netdev FAQ for guidance.

> +static int xpcs_get_state_2500basex(struct dw_xpcs *xpcs,
> +				    struct phylink_link_state *state)
> +{
> +	int sts;
> +
> +	sts = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_STS);

	if (sts < 0) {
		state->link = 0;
		return sts;
	}

especially as a negative errno value could result in state->link being
true.

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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