linux-kernel - Re: [PATCH] irq: Add new flag to ack level-triggered interrupts before unmasking

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: <alpine.DEB.2.02.1402062213590.21991@ionos.tec.linutronix.de>
Date:	Thu, 6 Feb 2014 22:14:40 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Carlo Caione <carlo@...one.org>
cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...glegroups.com, maxime.ripard@...e-electrons.com,
	hdegoede@...hat.com, emilio@...pez.com.ar
Subject: Re: [PATCH] irq: Add new flag to ack level-triggered interrupts
 before unmasking

On Thu, 6 Feb 2014, Carlo Caione wrote:

> Several irqchip drivers require the level-triggered interrupt to be
> acked before unmasking to avoid that a second interrupt is immediately
> triggered. This small patch introduces a new irqchip flags that is used
> to ack the IRQ line before it is unmasked.

And why are you not doing this in the unmask function of the affected
chip in the first place?
 
Thanks,

	tglx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/