linux-kernel - Re: [PATCH net-next 1/5] net: phy: add error checks in mmd_phy

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Message-ID: <Y86pItVLKwbRYX7e@lunn.ch>
Date:   Mon, 23 Jan 2023 16:34:58 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Michael Walle <michael@...le.cc>
Cc:     Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Marek Behún <kabel@...nel.org>,
        Xu Liang <lxu@...linear.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 1/5] net: phy: add error checks in
 mmd_phy_indirect() and export it

On Fri, Jan 20, 2023 at 11:40:07PM +0100, Michael Walle wrote:
> Add missing error checks in mmd_phy_indirect(). The error checks need to
> be disabled to retain the current behavior in phy_read_mmd() and
> phy_write_mmd(). Therefore, add a new parameter to enable the error
> checks. Add a thin wrapper __phy_mmd_indirect() which is then exported.

Do we need to retain the current behavior? Is there a good reason to
silently ignore errors? If there is, it would be good to state it here
in the commit message.

   Andrew