Re: [PATCH 3/4] device_tree: add qemu_fdt_setprop_strings() helper

[Alistair Francis <alistair23@gmail.com>]

On Mon, Apr 18, 2022 at 7:14 AM Ben Dooks <qemu@ben.fluff.org> wrote:
>
> Add a helper to set a property from a set of strings
> to reduce the following code:
>
>     static const char * const clint_compat[2] = {
>         "sifive,clint0", "riscv,clint0"
>     };
>
>     qemu_fdt_setprop_string_array(fdt, nodename, "compatible",
>         (char **)&clint_compat, ARRAY_SIZE(clint_compat));
>
> Signed-off-by: Ben Dooks <qemu@ben.fluff.org>
> ---
>  include/sysemu/device_tree.h | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/include/sysemu/device_tree.h b/include/sysemu/device_tree.h
> index 28352e7fcb..6ad09564d7 100644
> --- a/include/sysemu/device_tree.h
> +++ b/include/sysemu/device_tree.h
> @@ -87,6 +87,21 @@ int qemu_fdt_setprop_string(void *fdt, const char *node_path,
>  int qemu_fdt_setprop_string_array(void *fdt, const char *node_path,
>                                    const char *prop, char **array, int len);
>
> +/**
> + * qemu_fdt_setprop_strings: set a property from a set of strings
> + *
> + * @fdt: pointer to the dt blob
> + * @name: node name

This should be path instead of name (or change prop to name)

Alistair

> + * @prop: property array
> + */
> +#define qemu_fdt_setprop_strings(fdt, path, prop, ...)          \
> +    do {                                                        \
> +        static const char * const __strs[] = { __VA_ARGS__ };   \
> +        qemu_fdt_setprop_string_array(fdt, path, prop,          \
> +                (char **)&__strs, ARRAY_SIZE(__strs));          \
> +    } while(0)
> +
> +
>  int qemu_fdt_setprop_phandle(void *fdt, const char *node_path,
>                               const char *property,
>                               const char *target_node_path);
> --
> 2.35.1
>
>