linux-kernel - Re: [PATCH] pinctrl: add lock in mtk

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 for Android: free password hash cracker in your pocket

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

Date:   Thu, 25 Mar 2021 10:15:18 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Zhiyong Tao <zhiyong.tao@...iatek.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...nel.org>, srv_heupstream@...iatek.com,
        hui.liu@...iatek.com, huang eddie <eddie.huang@...iatek.com>,
        jg_poxu@...iatek.com, Biao Huang <biao.huang@...iatek.com>,
        Hongzhou Yang <hongzhou.yang@...iatek.com>,
        Erin Lo <erin.lo@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>, seiya.wang@...iatek.com,
        sj.huang@...iatek.com,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: add lock in mtk_rmw function.

On Sun, Mar 21, 2021 at 4:32 AM Zhiyong Tao <zhiyong.tao@...iatek.com> wrote:

> When multiple threads operate on the same register resource
> which include multiple pin, It will make the register resource
> wrong to control. So we add lock to avoid the case.
>
> Signed-off-by: Zhiyong Tao <zhiyong.tao@...iatek.com>

Patch applied!

Yours,
Linus Walleij