On Fri, Aug 09, 2019 at 07:33:21PM +0200, [email protected] wrote:
> From: Marek Vasut <[email protected]>
> 
> The of_empty_ranges_quirk() returns a mix of boolean and signed integer
> types, which cannot work well. Replace that with boolean only and fix
> usage logic in of_translate_one() -- the check should trigger when the
> ranges are NULL and the quirk is applicable on the hardware.
> 
> Signed-off-by: Marek Vasut <[email protected]>
> Cc: Rob Herring <[email protected]>
> Cc: Frank Rowand <[email protected]>
> Cc: [email protected]
> To: [email protected]

Reviewed-by: Simon Horman <[email protected]>

> ---
>  drivers/of/address.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/of/address.c b/drivers/of/address.c
> index b492176c0572..ae2819e148b8 100644
> --- a/drivers/of/address.c
> +++ b/drivers/of/address.c
> @@ -616,7 +616,7 @@ static struct of_bus *of_match_bus(struct device_node *np)
>       return NULL;
>  }
>  
> -static int of_empty_ranges_quirk(struct device_node *np)
> +static bool of_empty_ranges_quirk(struct device_node *np)
>  {
>       if (IS_ENABLED(CONFIG_PPC)) {
>               /* To save cycles, we cache the result for global "Mac" setting 
> */
> @@ -631,7 +631,8 @@ static int of_empty_ranges_quirk(struct device_node *np)
>                       quirk_state =
>                               of_machine_is_compatible("Power Macintosh") ||
>                               of_machine_is_compatible("MacRISC");
> -             return quirk_state;
> +             if (quirk_state > 0)
> +                     return true;
>       }
>       return false;
>  }
> @@ -662,8 +663,8 @@ static int of_translate_one(struct device_node *parent, 
> struct of_bus *bus,
>        * This code is only enabled on powerpc. --gcl
>        */
>       ranges = of_get_property(parent, rprop, &rlen);
> -     if (ranges == NULL && !of_empty_ranges_quirk(parent)) {
> -             pr_debug("no ranges; cannot translate\n");
> +     if (ranges == NULL && of_empty_ranges_quirk(parent)) {
> +             pr_err("no ranges; cannot translate\n");
>               return 1;
>       }
>       if (ranges == NULL || rlen == 0) {
> -- 
> 2.20.1
> 

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