linux-kernel - Re: [RESEND PATCH v3 1/2] device property: Add function to search for named child of device

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Date:	Tue, 21 Jun 2016 14:54:25 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Adam Thomson <Adam.Thomson.Opensource@...semi.com>,
	Robert Moore <robert.moore@...el.com>,
	Lv Zheng <lv.zheng@...el.com>,
	"Rafael J.Wysocki" <rafael.j.wysocki@...el.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Len Brown <lenb@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Rob Herring <robh+dt@...nel.org>,
	Frank Rowand <frowand.list@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-acpi@...r.kernel.org, devicetree@...r.kernel.org,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	Support Opensource <support.opensource@...semi.com>,
	Sathyanarayana Nujella <sathyanarayana.nujella@...el.com>
Subject: Re: [RESEND PATCH v3 1/2] device property: Add function to search
 for named child of device

On Tue, Jun 21, 2016 at 01:42:16PM +0200, Rafael J. Wysocki wrote:
> > > +static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
> > > +					const char *name)
> > > +{
> > > +	return is_acpi_data_node(fwnode) ?
> > > +		(!strcasecmp(to_acpi_data_node(fwnode)->name, name)) : false;
> > > +}
> > 
> > Looks fine to me.
> > 
> > One question - is it expected that matching ACPI data nodes is always
> > case insensitive?
> 
> That would not be a correct expectation in theory, although I don't think it
> really matters in practice.

OK.

Maybe it is good idea to document that in acpi_data_node_match(). A
comment explaining why we use strcasecmp() for now.