Re: [PATCH] powerpc/mpc5xxx: Use of_get_next_parent to simplify code

Julia Lawall
2015-10-11T20:44:25Z

On Sun, 11 Oct 2015, Christophe JAILLET wrote:

> of_get_next_parent can be used to simplify the while() loop and
> avoid the need of a temp variable.

Can you do something with the loop in __of_translate_address, in
drivers/of/address.c? Is there not an iterator for this?

julia

>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> arch/powerpc/sysdev/mpc5xxx_clocks.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/arch/powerpc/sysdev/mpc5xxx_clocks.c b/arch/powerpc/sysdev/mpc5xxx_clocks.c
> index f4f0301..5732926 100644
> --- a/arch/powerpc/sysdev/mpc5xxx_clocks.c
> +++ b/arch/powerpc/sysdev/mpc5xxx_clocks.c
> @@ -13,7 +13,6 @@
>
> unsigned long mpc5xxx_get_bus_frequency(struct device_node *node)
> {
> - struct device_node *np;
> const unsigned int *p_bus_freq = NULL;
>
> of_node_get(node);
> @@ -22,9 +21,7 @@ unsigned long mpc5xxx_get_bus_frequency(struct device_node *node)
> if (p_bus_freq)
> break;
>
> - np = of_get_parent(node);
> - of_node_put(node);
> - node = np;
> + node = of_get_next_parent(node);
> }
> of_node_put(node);
>
> --
> 2.1.4
>
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