Re: [PATCH v2] of: find also nodes by mixture of alias and path

[Jan Weitzel <J.Weitzel@phytec.de>]

Am Montag, den 06.01.2014, 10:32 +0100 schrieb Sascha Hauer:
> Hi Jan,
> 
> On Fri, Dec 20, 2013 at 02:24:48PM +0100, Jan Weitzel wrote:
> > Let of_find_node_by_path_or_alias also find a node starting with an alias
> > followed by a path like "i2c0/tps@24"
> > 
> > Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
> > ---
> > v2: rename ret to node
> > 
> >  drivers/of/base.c |   22 +++++++++++++++++++++-
> >  1 files changed, 21 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/of/base.c b/drivers/of/base.c
> > index ea2d879..5b5272d 100644
> > --- a/drivers/of/base.c
> > +++ b/drivers/of/base.c
> > @@ -1378,11 +1378,31 @@ EXPORT_SYMBOL(of_find_node_by_path);
> >  struct device_node *of_find_node_by_path_or_alias(struct device_node *root,
> >  		const char *str)
> >  {
> > +	struct device_node *node;
> > +	char *slash, *alias;
> > +	size_t len = 0;
> > +
> >  	if (*str ==  '/')
> >  		return of_find_node_by_path_from(root, str);
> > -	else
> > +
> > +	slash = _strchr(str, '/');
> 
> You should use regular strchr, not _strchr. Or is there any reason to do
> it differently here?
I got this from the strchr wrapper:

drivers/of/base.c: In function 'of_find_node_by_path_or_alias':
drivers/of/base.c:1388:8: warning: assignment discards 'const' qualifier
from pointer target type [enabled by default]

Is there a cleaner way?

Jan
> 
> Sascha
> 



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