[U-Boot] [PATCH] fdt: introudce fdt_get_child_count

[Simon Glass]

Hi Peng,

On 30 January 2016 at 23:38, Peng Fan <van.freenix at gmail.com> wrote:
> Introudce fdt_get_child_count for get the number of subnodes of
> one parent node.
>
> Signed-off-by: Peng Fan <van.freenix at gmail.com>
> Cc: Simon Glass <sjg at chromium.org>
> ---
>  include/libfdt.h | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
>
> diff --git a/include/libfdt.h b/include/libfdt.h
> index e48c21a..94d29e6 100644
> --- a/include/libfdt.h
> +++ b/include/libfdt.h
> @@ -193,6 +193,24 @@ int fdt_next_subnode(const void *fdt, int offset);
>              node >= 0;                                 \
>              node = fdt_next_subnode(fdt, node))
>
> +/**
> + * fdt_get_child_count() - get the number of subnodes of one node
> + *
> + * @fdt:       FDT blob
> + * @node:      Offset of node
> + * @return number of child nodes of node, or 0 if there is no subnode.
> + */
> +static inline int fdt_get_child_count(void *fdt, int node)

Does this need to be inline. It doesn't seem important to me.

> +{
> +       int subnode;
> +       int num = 0;
> +
> +       fdt_for_each_subnode(fdt, subnode, node)
> +               num++;
> +
> +       return num;
> +}
> +
>  /**********************************************************************/
>  /* General functions                                                  */
>  /**********************************************************************/
> --
> 2.6.2
>

Regards,
Simon