linux-kernel - Re: [PATCH 0/9] Remove 'irq' argument from all irq handlers

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]

Date:	Fri, 19 Oct 2007 13:35:55 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Jeff Garzik <jeff@...zik.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/9] Remove 'irq' argument from all irq handlers

Ingo Molnar <mingo@...e.hu> writes:

> * Eric W. Biederman <ebiederm@...ssion.com> wrote:
>
>> > thanks for doing this.
>> 
>> Yes.  keeping this alive is good.
>> 
>> The practical question is how do we make this change without breaking 
>> the drivers that use their irq argument.
>
> the get_irq_regs() approach worked out really well. We should do a 
> get_irq_nr() and be done with it?

The problem are some drivers today pass in 0 for their irq number
to flag that they are calling the interrupt handler in a polling
mode (not from interrupt context?) so the same logic doesn't quite apply.

Do what you suggest would likely break those drivers.

Eric
-
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/