linux-kernel - Re: [PATCH v2 2/2] of: changesets: Introduce changeset helper methods

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Message-Id: <324F27EC-FC71-4C50-926A-08AAF2A1114C@konsulko.com>
Date:	Mon, 21 Sep 2015 15:36:47 +0300
From:	Pantelis Antoniou <pantelis.antoniou@...sulko.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Rob Herring <robherring2@...il.com>,
	Frank Rowand <frowand.list@...il.com>,
	Matt Porter <mporter@...sulko.com>,
	Koen Kooi <koen@...inion.thruhere.net>,
	Guenter Roeck <linux@...ck-us.net>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] of: changesets: Introduce changeset helper methods

Hi Geert,

> On Sep 21, 2015, at 15:35 , Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> 
> Hi Pantelis,
> 
> On Wed, Sep 16, 2015 at 6:11 PM, Pantelis Antoniou
> <pantelis.antoniou@...sulko.com> wrote:
>> Changesets are very powerful, but the lack of a helper API
>> makes using them cumbersome. Introduce a simple copy based
>> API that makes things considerably easier.
>> 
>> To wit, adding a property using the raw API.
>> 
>>        struct property *prop;
>>        prop = kzalloc(sizeof(*prop)), GFP_KERNEL);
>>        prop->name = kstrdup("compatible");
>>        prop->value = kstrdup("foo,bar");
>>        prop->length = strlen(prop->value) + 1;
>>        of_changeset_add_property(ocs, np, prop);
>> 
>> while using the helper API
>> 
>>        of_changeset_add_property_string(ocs, np, "compatible",
>>                        "foo,bar");
> 
> What about removing properties?
> 

Once upon a time there was that capability. It was removed after we didn’t have
a good use for them yet. Do you have any? I’d be happy to re-add it :)


> Gr{oetje,eeting}s,
> 
>                        Geert
> 

Regards

— Pantelis

> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                -- Linus Torvalds

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