linux-kernel - Re: [PATCH 3/5] usb: roles: add API to get usb_role

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHp75VeW+NoaGQCnfMcZSz67V68ykRMO=BG9_U6NFODJ5g=1FA@mail.gmail.com>
Date:   Fri, 8 Mar 2019 08:52:06 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Chunfeng Yun <chunfeng.yun@...iatek.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Adam Thomson <Adam.Thomson.Opensource@...semi.com>,
        Li Jun <jun.li@....com>,
        Badhri Jagan Sridharan <badhri@...gle.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Min Guo <min.guo@...iatek.com>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        USB <linux-usb@...r.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH 3/5] usb: roles: add API to get usb_role_switch by node

On Fri, Mar 8, 2019 at 8:14 AM Chunfeng Yun <chunfeng.yun@...iatek.com> wrote:
>
> Add usb_role_switch_get_by_node() to make easier to get
> usb_role_switch by node which register it.
> It's useful when there is not device_connection registered
> between two drivers and only knows the node which register
> usb_role_switch.

> +static int __switch_match_node(struct device *dev, const void *node)
> +{
> +       return dev->parent->of_node == (const struct device_node *)node;
> +}

Hmm... Shouldn't be slightly better to compare fwnode instead?

-- 
With Best Regards,
Andy Shevchenko