Re: [PATCH] clk: Constify struct clk_init_data

From: Sascha Hauer
Date: Tue May 15 2012 - 03:01:02 EST


On Mon, May 14, 2012 at 06:19:16PM -0700, Saravana Kannan wrote:
> On 05/14/2012 02:53 PM, Turquette, Mike wrote:
> >On Mon, May 14, 2012 at 7:12 AM, Mark Brown<broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> >>Allow drivers to declare their clk_init_data const, the framework really
> >>shouldn't be modifying the data.
> >>
> >>Signed-off-by: Mark Brown<broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> >
> >+interested parties
> >
> >>
> >>diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
> >>index c1c23b9..fc43ea6 100644
> >>--- a/include/linux/clk-provider.h
> >>+++ b/include/linux/clk-provider.h
> >>@@ -143,7 +143,7 @@ struct clk_init_data {
> >> */
> >> struct clk_hw {
> >> struct clk *clk;
> >>- struct clk_init_data *init;
> >>+ const struct clk_init_data *init;
>
> Oh, wait. This won't work for the case where the clock registration
> is completely dynamic. Say, created from device tree or thru some
> PCI/USB device probe, etc. That's why I didn't add it before.

Why not? In this case clk_init_data is also only used in clk_register.
Given that Mark has posted the patch I assume it actually works.

Sascha

--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/