linux-kernel - Re: [PATCH net-next 01/15] net: dsa: mt7530: make some noise if register read fails

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Message-ID: <55b7e715-2982-4c96-8ab7-9f9a71f2c3f1@lunn.ch>
Date:   Thu, 30 Mar 2023 22:58:25 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux@...linux.org.uk,
        linux-kernel@...r.kernel.org,
        Arınç Ünal <arinc.unal@...nc9.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Sam Shih <Sam.Shih@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        John Crispin <john@...ozen.org>, Felix Fietkau <nbd@....name>
Subject: Re: [PATCH net-next 01/15] net: dsa: mt7530: make some noise if
 register read fails

On Thu, Mar 30, 2023 at 04:19:26PM +0100, Daniel Golle wrote:
> Simply returning the negative error value instead of the read value
> doesn't seem like a good idea. Return 0 instead and add WARN_ON_ONCE(1)
> so this kind of error will not go unnoticed.
> 
> Suggested-by: Andrew Lunn <andrew@...n.ch>
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew