linux-kernel - RE: [PATCH v3 2/5] phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY

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Date:   Thu, 8 Jun 2023 06:59:13 +0000
From:   Stanley Chang[昌育德] 
        <stanley_chang@...ltek.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Michael Grzeschik <m.grzeschik@...gutronix.de>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Ray Chi <raychi@...gle.com>,
        Flavio Suligoi <f.suligoi@...m.it>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: RE: [PATCH v3 2/5] phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY

Hi Krzysztof,


> I commented on your second patch, but everything is applicable here as well.
> You have many useless debug messages. Many incorrect or useless
> "if() return" which point to broken driver design (e.g. concurrent access to half
> initialized structures where you substitute lack of synchronization with
> incorrect "if() return"). Undocumented user interface is one more big trouble.
> 
> I doubt you run checkpatch on this (be sure to run it with --strict and fix almost
> everything).
> 
> 
1. I use checkpatch but without --strict. I will add it add and check again.
2. Do the debugfs interfaces need to provide a document?
I don't find any reference about this.
3. I will follow the comment of second patch to fix this patch

Thanks,
Stanley