linux-kernel - Re: [RFC PATCH 1/2] gpio: davinci: Do not clear the bank intr enable bit in save

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: <CACRpkdY_rhe69Y4AbEp8iws1fpL0bUkP5iBMN68EB+wxhFyHTw@mail.gmail.com>
Date:   Tue, 28 Mar 2023 15:29:06 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Dhruva Gole <d-gole@...com>
Cc:     Keerthy <j-keerthy@...com>, Vibhore Vardhan <vibhore@...com>,
        Tony Lindgren <tony@...mide.com>, Vignesh <vigneshr@...com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Devarsh Thakkar <devarsht@...com>
Subject: Re: [RFC PATCH 1/2] gpio: davinci: Do not clear the bank intr enable
 bit in save_context

On Thu, Mar 23, 2023 at 1:29 PM Dhruva Gole <d-gole@...com> wrote:

> The interrupt enable bits might be set if we want to use the GPIO as
> wakeup source. Clearing this will mean disabling of interrupts in the GPIO
> banks that we may want to wakeup from.
> Thus remove the line that was clearing this bit from the driver's save
> context function.
>
> Fixes: 0651a730924b ("gpio: davinci: Add support for system suspend/resume PM")
> Cc: Devarsh Thakkar <devarsht@...com>
> Signed-off-by: Dhruva Gole <d-gole@...com>

Looks like the right solution to me.
I'm a bit surprised given how long we have had this driver.
I suppose people have used out-of-tree patches for suspend/resume. :(

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij