linux-kernel - Re: [BONUS PATCH 2/2] base: core: WARN() about bogus permissions on device attributes

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Message-ID: <20130220050122.GD2869@kroah.com>
Date:	Tue, 19 Feb 2013 21:01:22 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Felipe Balbi <balbi@...com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BONUS PATCH 2/2] base: core: WARN() about bogus permissions on
 device attributes

On Tue, Feb 19, 2013 at 11:59:10AM +0200, Felipe Balbi wrote:
> Hi,
> 
> On Mon, Feb 18, 2013 at 09:20:10PM +0200, Felipe Balbi wrote:
> > On Mon, Feb 18, 2013 at 11:17:19AM -0800, Greg KH wrote:
> > > On Mon, Feb 18, 2013 at 09:09:04PM +0200, Felipe Balbi wrote:
> > > > Whenever a struct device_attribute is registered
> > > > with mismatched permissions - read permission without
> > > > a show routine or write permission without store
> > > > routine - we will issue a big warning so we catch
> > > > those early enough.
> > > > 
> > > > Signed-off-by: Felipe Balbi <balbi@...com>
> > > > ---
> > > > 
> > > > This is completely untested. I have only compile tested
> > > > to make sure I'm not breaking anything.
> > > > 
> > > > Greg, do you think this would be nice to have ? I could
> > > > fire up kvm tomorrow and run on a few of my OMAP-based
> > > > boards to make sure it works as expected.
> > > 
> > > Looks good, but you better fix up all of the big offenders that this
> > > points out, before I apply it, otherwise we will get a ton of bug
> > > reports :)
> > 
> > sure, will do that tomorrow though ;-)
> 
> Just tested $SUBJECT and it didn't trigger any extra warnings. Only the
> one whose fix you already applied (I reverted it to make sure $SUBJECT
> was working as expected).

Ok, care to resend so that I can queue it up after 3.9-rc1 is out, for
inclusion in 3.10, and we can have lots of time to see what falls out?

thanks,

greg k-h
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