linux-kernel - Re: [PATCH] software node: fix wrong node passed to find nargs

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Date:   Tue, 21 Dec 2021 11:45:04 +0200
From:   Sakari Ailus <sakari.ailus@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Daniel Scally <djrscally@...il.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Clément Léger <clement.leger@...tlin.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] software node: fix wrong node passed to find nargs_prop

Hi Greg, Andy,

On Tue, Dec 21, 2021 at 10:34:11AM +0100, Greg Kroah-Hartman wrote:
> On Mon, Dec 20, 2021 at 11:37:07PM +0000, Daniel Scally wrote:
> > Thanks Andy
> > 
> > On 20/12/2021 22:13, Andy Shevchenko wrote:
> > > + Sakari, Dan
> > > 
> > > On Monday, December 20, 2021, Clément Léger <clement.leger@...tlin.com
> > > <mailto:clement.leger@...tlin.com>> wrote:
> > > 
> > >     nargs_prop refers to a property located in the reference that is found
> > >     within the nargs property.
> > 
> > I think this is right (it's not used in the ACPI version, and the OF
> > version is quite convoluted so a bit hard to follow)...but also I note
> > that none of the users of fwnode_property_get_reference_args() pass
> > anything to nargs_prop anyway...do we even need this?
> 
> Looks like it is unused, please just remove it.

If you remove nargs_prop argument, then callers will have to use OF
property API instead to parse references with property-defined number of
arguments. The goal has been to cover all functionality in a
firmware-independent way.

-- 
Regards,

Sakari Ailus