linux-kernel - Re: [PATCH] Firmware class name collision

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Message-Id: <1187027138.6698.239.camel@violet>
Date:	Mon, 13 Aug 2007 19:45:38 +0200
From:	Marcel Holtmann <marcel@...tmann.org>
To:	Markus Rechberger <markus.rechberger@....com>
Cc:	linux-kernel@...r.kernel.org, Jean Delvare <khali@...ux-fr.org>,
	Greg KH <greg@...ah.com>
Subject: Re: [PATCH] Firmware class name collision

Hi Markus,

> >> following patch fixes the i2c name collision with i2c-dev.
> >>
> >> http://mcentral.de/wiki/index.php/Bugtracker#i2c_core_problem
> >>
> >> This issue has been experienced with em28xx and saa7133 based devices.
> >> I discussed that problem with Jean Delvare a while ago and he proposed 
> >> to add a prefix to the class name.
> >>
> >> http://mcentral.de/~mrec/patches/firmware_class_name_collision.diff
> >>
> >> Signed-off-by: Markus Rechberger <markus.rechberger@....com>
> >>
> >> index b24efd4..bfc54a1 100644
> >> --- a/drivers/base/firmware_class.c
> >> +++ b/drivers/base/firmware_class.c
> >> @@ -297,8 +297,7 @@ firmware_class_timeout(u_long data)
> >>  
> >>  static inline void fw_setup_device_id(struct device *f_dev, struct 
> >> device *dev)
> >>  {
> >> -       /* XXX warning we should watch out for name collisions */
> >> -       strlcpy(f_dev->bus_id, dev->bus_id, BUS_ID_SIZE);
> >> +       snprintf(f_dev->bus_id, BUS_ID_SIZE, "fw-%s", dev->bus_id);
> >>  }
> >>     
> >
> > I would prefer if we use "firmware-%s" since the "fw" might collide with
> > the new Firewire stack. Please change that and I agree.
> >
> >   
> 
> firmware-%s sounds more informative and cannot be mistaken with firewire 
> yes.
> 
> Signed-off-by: Markus Rechberger <markus.rechberger@....com>

Acked-by: Marcel Holtmann <marcel@...tmann.org>

Regards

Marcel


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