linux-kernel - Re: [PATCH 1/1] pinctrl: ocelot: fix system hang on level based interrupts

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

Message-ID: <CACRpkdbJ7xh1qOYaZOh+s+Tj_GgE4LXMFuOgL1zpxBRqJQVx6w@mail.gmail.com>
Date: Fri, 11 Oct 2024 11:18:55 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Sergey Matsievskiy <matsievskiysv@...il.com>
Cc: alexandre.belloni@...tlin.com, quentin.schulz@...tlin.com, 
	lars.povlsen@...rochip.com, horatiu.vultur@...rochip.com, 
	andriy.shevchenko@...ux.intel.com, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org, 
	UNGLinuxDriver@...rochip.com
Subject: Re: [PATCH 1/1] pinctrl: ocelot: fix system hang on level based interrupts

On Sun, Oct 6, 2024 at 8:13 PM Sergey Matsievskiy
<matsievskiysv@...il.com> wrote:

> Fix interrupt handle loops, produced by spurious and short level based
> interrupts by unconditionally clearing the parent interrupt, even when
> no GPIO interrupts are pending.
>
> Signed-off-by: Sergey Matsievskiy <matsievskiysv@...il.com>

This needs to describe how moving the chained irq calls achieves
this effect.

I'm a bit puzzled by the patch because I don't understand it.

Yours,
Linus Walleij