linux-kernel - Re: gpiolib: irq functions not implemented on x86

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]

Message-ID: <80528391.1791269625906877.JavaMail.root@mail.savoirfairelinux.com>
Date:	Fri, 26 Mar 2010 13:51:46 -0400 (EDT)
From:	Jerome Oufella <jerome.oufella@...oirfairelinux.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Matthew Garrett <mjg@...hat.com>
Cc:	linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	Michael Buesch <mb@...sch.de>
Subject: Re: gpiolib: irq functions not implemented on x86

----- "Michael Buesch" <mb@...sch.de> wrote :

> Are you sure that I am the intended recipient of this mail?
> I'm not involved in the GPIO subsystem at all.

Sorry Michael, I wrote to you as the original author for the questioned code.
So being unable to find anyone in charge of the GPIO subsystem,
I'm reiterating with the x86 team.

Regards,
Jerome

On Thursday 25 March 2010 20:36:04 Jérôme Oufella wrote:
> > Hi,
> > 
> > I wrote a gpiolib implementation for Technologic Systems TS-5500
> > boards (x86)custom GPIO lines. Some of their GPIO lines are
> > directly hooked to CPU (ElanSC520) GPIRQ lines, so they can
> > trigger IRQs.
> > 
> > However, looking at arch/x86/include/asm/gpio.h:
> > /*
> >  * Not implemented, yet.
> >  */
> > static inline int gpio_to_irq(unsigned int gpio)
> > {
> >         return -ENOSYS;
> > }
> > 
> > gpio_to_irq()/irq_to_gpio() are not defined on x86 yet.
> > 
> > Q: Is there a reason not to have it return gpiolib's __gpio_to_irq(),
> > as done for other gpiolib functions defined here ? such as:
> > -       return -ENOSYS;
> > +       return __gpio_to_irq(gpio);
> > 
> > 
> > Thanks
> > Jerome Oufella
> > 
> > 
> 
> -- 
> Greetings, Michael.
--
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/