linux-kernel - Re: [PATCH] device-tree: Drop properties with "/" in their name

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Date:	Sun, 13 Jun 2010 18:15:56 +1000
From:	Michael Ellerman <michael@...erman.id.au>
To:	Christian Kujau <lists@...dbynature.de>
Cc:	linuxppc-dev@...abs.org, monstr@...str.eu,
	microblaze-uclinux@...e.uq.edu.au,
	LKML <linux-kernel@...r.kernel.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH] device-tree: Drop properties with "/" in their name

On Sun, 2010-06-13 at 00:47 -0700, Christian Kujau wrote:
> On Wed, 19 May 2010 at 22:32, Michael Ellerman wrote:
> > Some bogus firmwares include properties with "/" in their name. This
> > causes problems when creating the /proc/device-tree file system,
> > because the slash is taken to indicate a directory.
> > 
> > We don't care about those properties, and we don't want to encourage
> > them, so just throw them away when creating /proc/device-tree.
> > 
> > Signed-off-by: Michael Ellerman <michael@...erman.id.au>
> > ---
> > 
> > Hi Christian, if you could test this new patch that'd be great, thanks!
> 
> I've tested the patch, the Badness is gone and the system is stable as 
> ever. Will this be pushed to 2.6.35?

Hopefully yes :)

Looks like Ben has deferred it to Grant in patchwork, and he is pretty
busy I think with other OF patches ATM. Maybe he'll grab it or Ben can
pick it up .. guys ? :)

http://patchwork.ozlabs.org/patch/52978/

cheers

> >  fs/proc/proc_devtree.c |    3 +++
> >  1 files changed, 3 insertions(+), 0 deletions(-)
> > 
> > diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
> > index ce94801..d9396a4 100644
> > --- a/fs/proc/proc_devtree.c
> > +++ b/fs/proc/proc_devtree.c
> > @@ -209,6 +209,9 @@ void proc_device_tree_add_node(struct device_node *np,
> >  	for (pp = np->properties; pp != NULL; pp = pp->next) {
> >  		p = pp->name;
> >  
> > +		if (strchr(p, '/'))
> > +			continue;
> > +
> >  		if (duplicate_name(de, p))
> >  			p = fixup_name(np, de, p);
> >  
> > -- 
> > 1.7.0.4
> > 
> > 
> > 
> 



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